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34CRMO4

23 source records. Standards, editions and conditions are presented separately; matching grade names do not establish interchangeability.

Refer to each source for mass fractions and analysis type. Missing values are not treated as 0. Manufacturer typical values, standard guarantees and measured heat results must remain separate. Use the material selector for calculations and condition selection.

Open condition selection, comparison and carbon-equivalent tools for 34CRMO4 →

34CrMo4 · DIN 17200-1987

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Reference record
Original record status
Original standard verified
Standard edition
DIN 17200-1987-03
Table / clause
Table 2 and footnotes 1–5; 7.3.1–7.3.2
PDF page references
1、2、15、16、17

Carbon-equivalent reference

IIW / CEV:0.6100–0.8200Known-element contribution; incomplete value; missing V, Ni, Cu CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5083Known-element contribution; incomplete value; missing Cu, Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5500Known-element contribution; incomplete value; missing Cu, Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Mn0.6 ~ 0.9
S≤ 0.03 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Si≤ 0.4 (lower limit not stated)
P≤ 0.035 (lower limit not stated)

Applicability and limitations

Table 2 cast analysis, mass fraction wt%; Si is an upper limit and unspecified elements are not filled with zero. P/S requirements for the C, Ck and Cm series remain separate; S 0.020–0.035% in S-containing grades is a two-sided range. Note 1: unlisted elements may not be intentionally added without purchaser consent, except to complete melting; no fixed residual values are inferred. Table 3 contains permissible product-analysis deviations, not added to cast limits; applicable sizes and positive/negative directions are checked separately. Heat-treatment condition, hardenability and size-dependent properties require separate verification. The standard includes hot-rolled wire rod; chemistry alone is no cold-heading supply commitment. Note 2: small composition deviations, excluding P/S, may be agreed when ordering restricted hardenability bands or quenched-and-tempered/normalized properties, but may not exceed Table 3. These data retain the Table 2 baseline without automatic relaxation. Light-typeface grades in note 4 are for special applications only. Note 5 permits separate ordering of Pb 0.15–0.30% only for the marked C-series grades; not added to ordinary base compositions. Original material number 1.7220; not marked for special application under note 4.

Verification notes

March 1987, Table 2 and all footnotes transcribed; mechanical properties checked separately.

34CrMo4 · ISO 4954

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form
Cold-heading wire
Original record status
Source edition identified; composition verification pending
Standard edition
ISO 4954:2018
Table / clause
Table C.2

Carbon-equivalent reference

IIW / CEV:0.6100–0.8367Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5175Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5625Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Cu≤ 0.25 (lower limit not stated)

Applicability and limitations

Composition based on ISO 4954:2018; the product edition is unspecified, so confirm the edition applicable to the contract.

Composition conditions

Verification notes

Composition based on ISO 4954:2018; the product edition is unspecified, so confirm the edition applicable to the contract.View associated products →

34CrMo4 · ISO 4954-2018

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Alloy steel
Subcategory
Steel for quenching and tempering
Material form
Reference record
Original record status
Original standard verified
Standard edition
ISO 4954:2018
Table / clause
Table C.2

Carbon-equivalent reference

IIW / CEV:0.6100–0.8367Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5175Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5625Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Cu≤ 0.25 (lower limit not stated)

Applicability and limitations

ISO 4954:2018, Table C.2 gives heat analysis; A single value is a maximum; a dash is not zero. ; Product-analysis tolerances are listed separately under Table 2/3 of the standard and do not directly widen the heat-analysis composition ranges. ; Optional Al0.020–0.050% to improve cold-heading performance; this is not a universal mandatory minimum. ; Low Si may be agreed in the order, taking hardenability into account; Where hardenability is required, the standard permits limited deviations, except for P/S; C must not exceed 0.01%; see Table 2 for the other requirements. ; For C, a range of width 0.04% may be agreed; it does not replace the tabulated range by default.

Verification notes

Table C.2 and its footnotes in the standard text were checked.

34CrMo4 · ISO 4954-1-2024

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form
Reference record
Original record status
Original standard verified
Standard edition
ISO 4954-1-2024
Table / clause
Table C.2 and notes a–d

Carbon-equivalent reference

Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.

Default heat composition in Table C.2/C.3
IIW / CEV:0.6100–0.8367Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5175Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5625Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.
Uses an addition of Al intended to improve cold-heading performance, Al≤0.050%
IIW / CEV:0.6100–0.8367Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5175Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5625Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition record (conditional branches apply; this is not an unconditional requirement)

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3

Applicability and limitations

Mass fraction wt%; Table C.2/C.3 heat analysis; see Table 2 separately for product-analysis tolerances. ; Note a: Al≤0.050% may be added to improve cold heading, but is not mandatory by default. ; Note c: A lower Si or a specified Si range may be requested by agreement; specific agreements have not yet been provided and shall not be filled in arbitrarily. ; When hardenability requirements exist, the small deviations permitted in Table B.6/B.7 must be verified separately according to Table 2 and conditions; the default composition range shall not be expanded. ; Elements not listed must not be intentionally added without purchaser consent, except additions needed to finish steelmaking; Unspecified values are not treated as zero. ; Mechanical properties/hardenability have not been supplemented in this batch; Cold heading applicability must be determined in conjunction with dimensions, state, and technical conditions.

Original condition-branch records

Default heat composition in Table C.2/C.3

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3

Uses an addition of Al intended to improve cold-heading performance, Al≤0.050%

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Al≤ 0.05 (lower limit not stated)

A condition branch must be selected

Yes

Verification notes

The original English text of 2024, Table C.2/C.3 and footnotes have been checked

34CrMo4 · EN 10263-4-2017

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form
Reference record
Original record status
Original standard verified
Standard edition
EN 10263-4-2017
Table / clause
Table 3 and notes

Carbon-equivalent reference

Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.

Default heat composition listed in the table; optional Al addition not selected.
IIW / CEV:0.6100–0.8367Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5175Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5625Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.
Note 3: optional Al addition of 0.020–0.050% to improve cold-heading performance.
IIW / CEV:0.6100–0.8367Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5175Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5625Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition record (conditional branches apply; this is not an unconditional requirement)

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3

Applicability and limitations

EN10263-4:2017, Table 3, heat analysis, mass percent. ; Elements not listed shall not be filled as 0; they shall not be intentionally added without the consent of the purchaser, except additions needed to finish steelmaking. ; Note 2 allows the specification of small deviations when hardenability requirements exist, but this does not involve P/S; The default composition range is not expanded here; it must be combined with specific hardenability ordering conditions. ; Note 3 allows Al 0.020–0.050% to be listed separately; it shall not be defaulted as mandatory aluminum content. ; Mechanical properties and delivery conditions are to be verified separately; the standard range is not a guarantee for the forming of arbitrary parts. ; Note a: lower Si may be agreed upon, but the influence on properties such as hardenability must be considered; do not fill in if no specific agreement range is provided. ; Note b allows a C range of 0.04% width by agreement; the example .33–.37 is not a uniform range for all grades.

Original condition-branch records

Default heat composition listed in the table; optional Al addition not selected.

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3

Note 3: optional Al addition of 0.020–0.050% to improve cold-heading performance.

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Al0.02 ~ 0.05

A condition branch must be selected

Yes

Verification notes

Visual check of Tables 3 and 4 and footnotes in the English original

34CrMo4 · DIN EN 10263-4-2002

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form
Reference record
Original record status
Original standard verified
Standard edition
DIN EN 10263-4-2002
Table / clause
Table 2

Carbon-equivalent reference

IIW / CEV:0.6100–0.8367Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5175Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5625Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3

Applicability and limitations

The original webpage states DIN EN 10263-4-2018; The composition in this record was actually verified against DIN EN 10263-4-2002; the edition is now identified as 2002 according to the original evidence; The original official German edition of 2018 remains unavailable; edition EN2017 is not automatically treated as the original DIN. ; DIN EN10263-4:2002-02 adopts EN10263-4:2001; the edition relationship is expressly identified on the cover; Heat-analysis mass percentages. ; Historical Table 2/3 contains no optional Al addition note for 2017; newer-edition conditions are not applied. ; Table 2, note c permits an agreed carbon range of width .04%; tabulated defaults are unchanged without a specific agreement. ; Table 2, note d and Table 3, note c permit agreed lower Si, considering effects on properties/hardenability; no range is invented where none is specified. ; Unlisted elements are not entered as zero; Table 2, note a: intentional additions without purchaser consent are prohibited except to finish the heat; residuals may be present but must not impair properties. ; Table 2, note b permits specified deviations where hardenability is required, except for P/S; The default composition range is not widened here. ; Mechanical properties, delivery and hardenability require separate verification; suitability for forming a specific component requires separate confirmation.

Verification notes

The original webpage states DIN EN 10263-4-2018; The composition in this record was actually verified against DIN EN 10263-4-2002; the edition is now identified as 2002 according to the original evidence; The original official German edition of 2018 remains unavailable; edition EN2017 is not automatically treated as the original DIN.

34CrMo4 · DIN EN 10263-4-2002

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form
Reference record
Original record status
Original standard verified
Standard edition
DIN EN 10263-4-2002
Table / clause
Table 2

Carbon-equivalent reference

IIW / CEV:0.6100–0.8367Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5175Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5625Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3

Applicability and limitations

DIN EN10263-4:2002-02 adopts EN10263-4:2001; the edition relationship is expressly identified on the cover; Heat-analysis mass percentages. ; Historical Table 2/3 contains no optional Al addition note for 2017; newer-edition conditions are not applied. ; Table 2, note c permits an agreed carbon range of width .04%; tabulated defaults are unchanged without a specific agreement. ; Table 2, note d and Table 3, note c permit agreed lower Si, considering effects on properties/hardenability; no range is invented where none is specified. ; Unlisted elements are not entered as zero; Table 2, note a: intentional additions without purchaser consent are prohibited except to finish the heat; residuals may be present but must not impair properties. ; Table 2, note b permits specified deviations where hardenability is required, except for P/S; The default composition range is not widened here. ; Mechanical properties, delivery and hardenability require separate verification; suitability for forming a specific component requires separate confirmation.

Composition conditions

Verification notes

Older-edition Tables 2 and 3 and footnotes visually checked; equivalence to the newer edition is not assumed.

34CrMo4 · EN 10263-4-2001

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form
Reference record
Original record status
Original standard verified
Standard edition
EN 10263-4-2001
Table / clause
Table 2

Carbon-equivalent reference

IIW / CEV:0.6100–0.8367Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5175Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5625Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.3 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3

Applicability and limitations

DIN EN10263-4:2002-02 adopts EN10263-4:2001; the edition relationship is expressly identified on the cover; Heat-analysis mass percentages. ; Historical Table 2/3 contains no optional Al addition note for 2017; newer-edition conditions are not applied. ; Table 2, note c permits an agreed carbon range of width .04%; tabulated defaults are unchanged without a specific agreement. ; Table 2, note d and Table 3, note c permit agreed lower Si, considering effects on properties/hardenability; no range is invented where none is specified. ; Unlisted elements are not entered as zero; Table 2, note a: intentional additions without purchaser consent are prohibited except to finish the heat; residuals may be present but must not impair properties. ; Table 2, note b permits specified deviations where hardenability is required, except for P/S; The default composition range is not widened here. ; Mechanical properties, delivery and hardenability require separate verification; suitability for forming a specific component requires separate confirmation.

Verification notes

Older-edition Tables 2 and 3 and footnotes visually checked; equivalence to the newer edition is not assumed.

34CrMo4 · DIN EN 10083-3-2007

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form
Reference record
Original record status
Original standard verified
Standard edition
DIN EN 10083-3-2007
Table / clause
Table 3 · Notes a–c
PDF page references
1、18

Carbon-equivalent reference

IIW / CEV:0.6100–0.8200Known-element contribution; incomplete value; missing V, Ni, Cu CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5083Known-element contribution; incomplete value; missing Cu, Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5500Known-element contribution; incomplete value; missing Cu, Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Mn0.6 ~ 0.9
S≤ 0.035 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Si≤ 0.4 (lower limit not stated)
P≤ 0.025 (lower limit not stated)

Applicability and limitations

Composition is based on Table 3 of EN10083-3:2006 in the official English text of DIN EN10083-3:2007-01, heat analysis wt%. ; Note a: Elements not listed shall not be intentionally added without the purchaser's consent, except for additions needed to finish steelmaking and to enable boron to act on hardenability.; Unspecified values shall not be treated as zero. ; Note b: Small deviations are permitted where hardenability or quenched-and-tempered mechanical-property requirements apply, except for C/P/S; permitted deviations for other elements must not exceed Table 4.; Default heat analysis range shall not be expanded. ; For non-boron steels in this standard, Note c permits steel with improved machinability to be supplied on request: sulfur approximately 0.10%, with the Mn upper limit permitted to increase by an absolute 0.15%.; Approximate values are not default hard upper limits and must be determined by specific inquiry/order; they shall not be automatically mixed with ordinary grades. ; This standard covers alloy steels for quenching and tempering. Suitability for cold heading, wire-rod supply, annealing, surface and dimensions require separate confirmation; do not automatically add products..

Verification notes

Official English source cover, all 28 grades in Table 3 and notes a–c visually checked.

Permitted product-analysis deviations (must not be added to heat-analysis limits)

DIN EN10083-3:2007-01 (adopting EN10083-3:2006) · Table 4 and notes a/b, 7.1.2.2; Product analysis specified at ordering follows A.5 · PDF pages 11, 19, 55 · mass fraction wt%; Deviations are expressed in percentage points of mass percentage

The complete standard tolerance table applies only to elements specified in the original table for this grade and to the corresponding content/sulfur-range conditions; it does not widen heat-analysis composition, carbon equivalent or reverse-search ranges.

ElementSpecified maximum heat-analysis content, wt%Lower deviation, percentage pointsUpper deviation, percentage pointsApplicable conditions
C≤0.55-0.02+0.02Select the cast-analysis maximum-content band specified in the original table
Si≤0.40The original table does not state a negative deviation+0.03Select the cast-analysis maximum-content band specified in the original table
Mn≤1.00-0.04+0.04Select the cast-analysis maximum-content band specified in the original table
Mn>1.00≤1.70-0.05+0.05Select the cast-analysis maximum-content band specified in the original table
P≤0.025The original table does not state a negative deviation+0.005Select the cast-analysis maximum-content band specified in the original table
S≤0.040The original table does not state a negative deviation+0.005Only the sulfur upper limit is specified; Note b’s full 0.020–0.040% range is not applied.
Cr≤2.00-0.05+0.05Select the cast-analysis maximum-content band specified in the original table
Cr>2.00≤2.20-0.1+0.1Select the cast-analysis maximum-content band specified in the original table
Mo≤0.30-0.03+0.03Select the cast-analysis maximum-content band specified in the original table
Mo>0.30≤0.60-0.04+0.04Select the cast-analysis maximum-content band specified in the original table
Ni≤2.00-0.05+0.05Select the cast-analysis maximum-content band specified in the original table
Ni>2.00≤4.3-0.07+0.07Select the cast-analysis maximum-content band specified in the original table
V≤0.25-0.02+0.02Select the cast-analysis maximum-content band specified in the original table
B≤0.0050-0.0003+0.0003Select the cast-analysis maximum-content band specified in the original table
S≤0.040-0.005+0.005Only when Table 3 heat analysis explicitly specifies the full S range of 0.020–0.040% (Table 4, Note b).

This is a complete standard deviation table and does not imply that every element for this grade is specified; Elements not listed are not added on the basis of this table. Symmetric deviation for the same heat is permitted in only one direction, either upward or downward; Asymmetric deviation for Pb is only found in the Pb row of EN10087 and cannot be applied to other standards where Pb is not listed. Do not automatically expand heat analysis composition, carbon equivalent, or reverse-lookup ranges.

34CrMo4 · EN 10083-3-2006

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form
Reference record
Original record status
Original standard verified
Standard edition
EN 10083-3-2006
Table / clause
Table 3 · Notes a–c
PDF page references
1、18

Carbon-equivalent reference

IIW / CEV:0.6100–0.8200Known-element contribution; incomplete value; missing V, Ni, Cu CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5083Known-element contribution; incomplete value; missing Cu, Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5500Known-element contribution; incomplete value; missing Cu, Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Mn0.6 ~ 0.9
S≤ 0.035 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Si≤ 0.4 (lower limit not stated)
P≤ 0.025 (lower limit not stated)

Applicability and limitations

Composition is based on Table 3 of EN10083-3:2006 in the official English text of DIN EN10083-3:2007-01, heat analysis wt%. ; Note a: Elements not listed shall not be intentionally added without the purchaser's consent, except for additions needed to finish steelmaking and to enable boron to act on hardenability.; Unspecified values shall not be treated as zero. ; Note b: Small deviations are permitted where hardenability or quenched-and-tempered mechanical-property requirements apply, except for C/P/S; permitted deviations for other elements must not exceed Table 4.; Default heat analysis range shall not be expanded. ; For non-boron steels in this standard, Note c permits steel with improved machinability to be supplied on request: sulfur approximately 0.10%, with the Mn upper limit permitted to increase by an absolute 0.15%.; Approximate values are not default hard upper limits and must be determined by specific inquiry/order; they shall not be automatically mixed with ordinary grades. ; This standard covers alloy steels for quenching and tempering. Suitability for cold heading, wire-rod supply, annealing, surface and dimensions require separate confirmation; do not automatically add products..

Verification notes

Official English source cover, all 28 grades in Table 3 and notes a–c visually checked.

34CrMo4 · NF EN 10083-3-2006

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material form
Reference record
Original record status
Composition basis in the adopted standard verified
Standard edition
EN 10083-3-2006
Table / clause
Table 3 · Notes a–c
PDF page references
1、18

Carbon-equivalent reference

IIW / CEV:0.6100–0.8200Known-element contribution; incomplete value; missing V, Ni, Cu CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5083Known-element contribution; incomplete value; missing Cu, Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5500Known-element contribution; incomplete value; missing Cu, Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Mn0.6 ~ 0.9
S≤ 0.035 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Si≤ 0.4 (lower limit not stated)
P≤ 0.025 (lower limit not stated)

Applicability and limitations

NF EN 10083-3:2006-12 corresponds to EN 10083-3:2006; Composition is read from the verified official original text of this EN version; see Data Basis for the actual source document. Composition is based on Table 3 of EN10083-3:2006 in the official English text of DIN EN10083-3:2007-01, heat analysis wt%. ; Note a: Elements not listed shall not be intentionally added without the purchaser's consent, except for additions needed to finish steelmaking and to enable boron to act on hardenability.; Unspecified values shall not be treated as zero. ; Note b: Small deviations are permitted where hardenability or quenched-and-tempered mechanical-property requirements apply, except for C/P/S; permitted deviations for other elements must not exceed Table 4.; Default heat analysis range shall not be expanded. ; For non-boron steels in this standard, Note c permits steel with improved machinability to be supplied on request: sulfur approximately 0.10%, with the Mn upper limit permitted to increase by an absolute 0.15%.; Approximate values are not default hard upper limits and must be determined by specific inquiry/order; they shall not be automatically mixed with ordinary grades. ; This standard covers alloy steels for quenching and tempering. Suitability for cold heading, wire-rod supply, annealing, surface and dimensions require separate confirmation; do not automatically add products..

Verification notes

The adoption relationship and original corresponding EN composition table have been checked; The complete main text of NF has not been checked page by page

34CrMo4 · DIN 17200-1987

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Reference record
Original record status
Original standard verified
Standard edition
DIN 17200-1987-03
Table / clause
Table 2 and footnotes 1–5; 7.3.1–7.3.2
PDF page references
1、2、15、16、17

Carbon-equivalent reference

IIW / CEV:0.6100–0.8200Known-element contribution; incomplete value; missing V, Ni, Cu CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5083Known-element contribution; incomplete value; missing Cu, Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5500Known-element contribution; incomplete value; missing Cu, Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Mn0.6 ~ 0.9
S≤ 0.03 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Si≤ 0.4 (lower limit not stated)
P≤ 0.035 (lower limit not stated)

Applicability and limitations

Table 2 cast analysis, mass fraction wt%; Si is an upper limit and unspecified elements are not filled with zero. P/S requirements for the C, Ck and Cm series remain separate; S 0.020–0.035% in S-containing grades is a two-sided range. Note 1: unlisted elements may not be intentionally added without purchaser consent, except to complete melting; no fixed residual values are inferred. Table 3 contains permissible product-analysis deviations, not added to cast limits; applicable sizes and positive/negative directions are checked separately. Heat-treatment condition, hardenability and size-dependent properties require separate verification. The standard includes hot-rolled wire rod; chemistry alone is no cold-heading supply commitment. Note 2: small composition deviations, excluding P/S, may be agreed when ordering restricted hardenability bands or quenched-and-tempered/normalized properties, but may not exceed Table 3. These data retain the Table 2 baseline without automatic relaxation. Light-typeface grades in note 4 are for special applications only. Note 5 permits separate ordering of Pb 0.15–0.30% only for the marked C-series grades; not added to ordinary base compositions. Original material number 1.7220; not marked for special application under note 4.

Verification notes

March 1987, Table 2 and all footnotes transcribed; mechanical properties checked separately.

34CrMo4 · EN ISO 683-2-2018

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Alloy steel
Subcategory
Alloy steel for quenching and tempering
Material form
Reference record
Original record status
Original standard verified
Standard edition
EN ISO 683-2-2018
Table / clause
Table 3, notes a–d; clause 7.1.2; Table 4 limits
PDF page references
22
Unit
Mass fraction (wt%)
Analysis type
Heat analysis; not product analysis

Carbon-equivalent reference

IIW / CEV:0.6100–0.8467Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3883–0.5283Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5700Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Si0.1 ~ 0.4
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.035 (lower limit not stated)
Cr0.9 ~ 1.2
Cu≤ 0.4 (lower limit not stated)
Mo0.15 ~ 0.3

Applicability and limitations

Table 3 herein applies to heat (cast) analysis, mass fraction wt%; The permissible deviations for product analysis in Table 4 shall not be directly added to the limits in general Table 3. This document is EN ISO 683-2:2018, adopted without modification and accompanied by the text of ISO 683-2:2016; This record explicitly preserves the identity of EN ISO 683-2-2018 and shall not be called the ISO 2018 edition. Only the chemical composition and source conditions of Table 3 are verified; this does not constitute a guarantee of hardenability, heat treatment, mechanical properties, wire delivery state, or cold heading process. Note a: deviations in heat analysis apply only when hardenability requirements are specified; The deviation in C shall not exceed ±0.01%; P/S is excluded, and the other elements follow Table 4. General Table 3 shall not be automatically relaxed, nor shall H/HH/HL be merged with general grades. Note b: Steel with S increased to approximately 0.10% (including sulfide morphology control) or with the addition of Pb to improve machinability may be requested from the supplier; When S is increased, the upper limit of Mn may be increased by 0.15 percentage points. This agreement is not a default requirement, and approximate values shall not serve as precise automatic limits for this batch; if the Pb range is not listed, values shall not be borrowed from other standards. Original Note: Elements not listed shall not be intentionally added without the consent of the purchaser, except those required to complete the melting process; Elements introduced via scrap steel etc. shall be controlled. An unlisted value must not be assumed to be zero. Note d: lower Si is permitted, but other deoxidation methods must be used; The original text does not provide a uniform lower Si range; agreed conditions shall not automatically replace the range listed in 0.10–0.40%.

Verification notes

Original-image verification of all 25 physical rows and merged cells in Table 3; reuse existing independently cropped evidence for 5 same-source rows and 40 cells, transcribe the remaining cells individually from the source images, and record the two editions separately.

34CrMo4 · ISO 683-2-2016

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Alloy steel
Subcategory
Alloy steel for quenching and tempering
Material form
Reference record
Original record status
Original standard verified
Standard edition
ISO 683-2-2016
Table / clause
Table 3, notes a–d; clause 7.1.2; Table 4 limits
PDF page references
22
Unit
Mass fraction (wt%)
Analysis type
Heat analysis; not product analysis

Carbon-equivalent reference

IIW / CEV:0.6100–0.8467Known-element contribution; incomplete value; missing V, Ni CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3883–0.5283Known-element contribution; incomplete value; missing Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5700Known-element contribution; incomplete value; missing Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Si0.1 ~ 0.4
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.035 (lower limit not stated)
Cr0.9 ~ 1.2
Cu≤ 0.4 (lower limit not stated)
Mo0.15 ~ 0.3

Applicability and limitations

Table 3 herein applies to heat (cast) analysis, mass fraction wt%; The permissible deviations for product analysis in Table 4 shall not be directly added to the limits in general Table 3. This document is EN ISO 683-2:2018, adopted without modification and accompanied by the text of ISO 683-2:2016; This record explicitly preserves the identity of ISO 683-2-2016 and shall not be called the ISO 2018 edition. Only the chemical composition and source conditions of Table 3 are verified; this does not constitute a guarantee of hardenability, heat treatment, mechanical properties, wire delivery state, or cold heading process. Note a: deviations in heat analysis apply only when hardenability requirements are specified; The deviation in C shall not exceed ±0.01%; P/S is excluded, and the other elements follow Table 4. General Table 3 shall not be automatically relaxed, nor shall H/HH/HL be merged with general grades. Note b: Steel with S increased to approximately 0.10% (including sulfide morphology control) or with the addition of Pb to improve machinability may be requested from the supplier; When S is increased, the upper limit of Mn may be increased by 0.15 percentage points. This agreement is not a default requirement, and approximate values shall not serve as precise automatic limits for this batch; if the Pb range is not listed, values shall not be borrowed from other standards. Original Note: Elements not listed shall not be intentionally added without the consent of the purchaser, except those required to complete the melting process; Elements introduced via scrap steel etc. shall be controlled. An unlisted value must not be assumed to be zero. Note d: lower Si is permitted, but other deoxidation methods must be used; The original text does not provide a uniform lower Si range; agreed conditions shall not automatically replace the range listed in 0.10–0.40%.

Verification notes

Original-image verification of all 25 physical rows and merged cells in Table 3; reuse existing independently cropped evidence for 5 same-source rows and 40 cells, transcribe the remaining cells individually from the source images, and record the two editions separately.

34CrMo4 · EN 10132-3-2000

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Cold-rolled narrow strip; dimensions and delivery condition subject to applicable conditions
Original record status
Original standard verified
Standard edition
EN 10132-3:2000
Table / clause
Table 1; Table 2; clauses 1,4,7.3–7.5
PDF page references
1、4、5、8
Unit
Mass fraction (wt%)
Analysis type
Heat analysis

Carbon-equivalent reference

IIW / CEV:0.6100–0.8200Known-element contribution; incomplete value; missing V, Ni, Cu CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15; an engineering estimate of welding cold-cracking susceptibility for carbon and low-alloy steels.
Pcm(Ito–Bessyo):0.3850–0.5083Known-element contribution; incomplete value; missing Cu, Ni, V, B Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60 + Mo/15 + V/10 + 5B; mainly used for low-carbon low-alloy steels, particularly modern low-carbon pipeline steels; more relevant when C is approximately no higher than 0.11%.
CET:0.4200–0.5500Known-element contribution; incomplete value; missing Cu, Ni CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 + Ni/40; used in welding preheat assessment for ferritic steels, subject to the applicability conditions of EN 1011-2.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Si≤ 0.4 (lower limit not stated)
Mn0.6 ~ 0.9
P≤ 0.035 (lower limit not stated)
S≤ 0.035 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3

Applicability and limitations

Actually based on the official English text of EN 10132-3:2000; This standard covers cold-rolled narrow steel strip intended for heat treatment; it does not constitute a supply guarantee for cold-heading wire.. Table 1 is for heat analysis; Permissible deviations for finished product analysis in Table 2 are registered independently; finished product permissible deviations shall not be used to relax heat analysis. Table 1 Footnote: Elements not listed shall not be intentionally added without the buyer's consent, except additions needed to finish steelmaking; Prevent scrap or other raw materials from introducing elements that could impair properties or intended use; unlisted elements must not be assumed zero.. Values in Mechanical Table 3 are applicable only for 0.30 mm≤t<3.00 mm; Mechanical properties for thicker steel strips shall be agreed upon during inquiry and ordering and cannot be directly extrapolated. Footnote a of Table 3 requires a choice between tensile indicators and hardness; Unless otherwise specified, tensile requirements apply. This page presents the alternatives separately and does not treat both as simultaneous guaranteed requirements.. For cold-rolled +CR, agree a tensile-property interval 150 MPa wide when tensile requirements are selected, or a hardness interval 50 HV wide when hardness is selected.; The outer boundaries of this table do not automatically generate actual ordering windows. Sampling, test methods, microstructure, dimensions, inspection, and other general delivery requirements shall also be verified in conjunction with EN10132-1 and applicable agreements; composition reverse-check does not replace full-item acceptance. This part covers cold-rolled narrow steel strip for quenching and tempering; strip supplied for heat treatment has thickness up to 6mm.; The +QT condition is within the range of 0.30 to 3.00mm, but the values in Table 3 are strictly limited to 0.30≤t<3.00mm.. +QT is used only for grades with explicitly listed values in Table 3.; The actual ordering range for tensile strength or hardness shall be agreed upon based on the 150MPa or 50HV width respectively; the entire optional interval in the table cannot be treated as a single supply guarantee.. +AC spheroidizing annealing condition may be adopted by agreement, but spheroidization and mechanical limits must be separately agreed upon.; +A/+LC values shall not be applied.. The +CR mechanical properties for 25Mn4 and CrMo grades must be agreed upon during ordering..

Verification notes

The complete original English Table 1 was transcribed; Table 2 product-analysis tolerances and Table 3 condition/thickness and alternative tensile-or-hardness requirements have been checked

Permitted product-analysis deviations

C
Permitted deviation
0.02
Deviation direction
Positive or negative deviation; only one direction is permitted for the same heat
Applicable conditions
Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
Si
Permitted deviation
0.03
Deviation direction
Only positive deviations are permitted
Applicable conditions
Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
Mn
Permitted deviation
0.04
Deviation direction
Positive or negative deviation; only one direction is permitted for the same heat
Applicable conditions
Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
P
Permitted deviation
0.005
Deviation direction
Only positive deviations are permitted
Applicable conditions
Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
S
Permitted deviation
0.005
Deviation direction
Only positive deviations are permitted
Applicable conditions
Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
Cr
Permitted deviation
0.04
Deviation direction
Positive or negative deviation; only one direction is permitted for the same heat
Applicable conditions
Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged
Mo
Permitted deviation
0.03
Deviation direction
Positive or negative deviation; only one direction is permitted for the same heat
Applicable conditions
Product analysis; For the same heat, deviations may be above the upper limit or below the lower limit, but not both; Heat-analysis limits remain unchanged

34CrMo4 · Ovako Product Catalogue CO-117 ENG 24:07 (2024)

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Bars, tubes, rings and precomponents
Composition basis
Manufacturer typical/nominal values, not guaranteed ranges
Original record status
Manufacturer source verified
Document edition
CO-117 ENG 24:07 ©Ovako 2024
Document title
Ovako Product Catalogue
PDF page references
45
Unit
Interpreted as mass fraction (%) using other documents from the same manufacturer; the unit is not explicitly stated in this table
Analysis type
Typical composition analysis
Manufacturer
Ovako

Source document

Carbon-equivalent reference

Manufacturer typical single values are composition references only; no range estimate is made. They are neither standard guarantees nor measured heat results; Formula applicability requires review against the intended use and process.

IIW / CEV: manufacturer typical/nominal single values are shown for reference only; standard-range carbon equivalent is not calculated
Pcm (Ito–Bessyo): manufacturer typical/nominal single values are shown for reference only; standard-range carbon equivalent is not calculated
CET: manufacturer typical/nominal single values are shown for reference only; standard-range carbon equivalent is not calculated

Composition

ElementComposition requirement
CTypical/nominal value 0.34 (not a guaranteed range)
SiTypical/nominal value 0.3 (not a guaranteed range)
MnTypical/nominal value 0.8 (not a guaranteed range)
CrTypical/nominal value 1.1 (not a guaranteed range)
MoTypical/nominal value 0.2 (not a guaranteed range)

Applicability and limitations

Ovako 2024 product catalogue, PDF page 45; manufacturer’s typical analysis, for composition reference only. The original header does not explicitly state units; interpreted using the manufacturer’s mass-fraction % information. Neither standard guaranteed values nor measured heat analysis. Excluded from limit-based reverse search and carbon-equivalent calculation; blanks and element names alone in the other-elements field are not filled with 0. Manufacturer code: 34CrMo4.

Conditional requirement

Verification notes

All 170 rows of the 2021 original table were visually checked. Values in corresponding 2024 cells are unchanged; recognition differences were reviewed separately. Rows with conflicting values under the same code are excluded; values are not mixed across sections.

Other-element requirements

V

34CrMo4 · Ovako Product Catalogue CO-117 ENG 24:07 (2024)

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Bars, tubes, rings and precomponents
Composition basis
Manufacturer typical/nominal values, not guaranteed ranges
Original record status
Manufacturer source verified
Document edition
CO-117 ENG 24:07 ©Ovako 2024
Document title
Ovako Product Catalogue
PDF page references
73
Unit
Interpreted as mass fraction (%) using other documents from the same manufacturer; the unit is not explicitly stated in this table
Analysis type
Typical composition analysis
Manufacturer
Ovako

Source document

Carbon-equivalent reference

Manufacturer typical single values are composition references only; no range estimate is made. They are neither standard guarantees nor measured heat results; Formula applicability requires review against the intended use and process.

IIW / CEV: manufacturer typical/nominal single values are shown for reference only; standard-range carbon equivalent is not calculated
Pcm (Ito–Bessyo): manufacturer typical/nominal single values are shown for reference only; standard-range carbon equivalent is not calculated
CET: manufacturer typical/nominal single values are shown for reference only; standard-range carbon equivalent is not calculated

Composition

ElementComposition requirement
CTypical/nominal value 0.3 (not a guaranteed range)
SiTypical/nominal value 0.3 (not a guaranteed range)
MnTypical/nominal value 0.8 (not a guaranteed range)
CrTypical/nominal value 1.1 (not a guaranteed range)
MoTypical/nominal value 0.2 (not a guaranteed range)

Applicability and limitations

Ovako 2024 product catalogue PDF, page 73; Manufacturer Typical analysis typical values, for composition reference only. The original table header does not explicitly state the unit; interpreted as manufacturer mass-percentage data; Not guaranteed standard limits or heat-specific measurements; Excluded from limit-based reverse matching and carbon-equivalent calculations; blanks and entries giving only the element name Other are not filled with 0. Manufacturer codes: MoC 310 M.

Conditional requirement

Verification notes

All 170 rows of the 2021 original table were visually checked. Values in corresponding 2024 cells are unchanged; recognition differences were reviewed separately. Rows with conflicting values under the same code are excluded; values are not mixed across sections.

Source notes

Steel suitable for cold heading

34CrMo4 · DIN 1654-4-1989

Original-source verification is incomplete; this is not a formal standard reference

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Reference record
Verification status
Reference data; original source not verified

Carbon-equivalent reference

IIW / CEV: composition source not verified; standard-range carbon equivalent is not calculated
Pcm (Ito–Bessyo): composition source not verified; standard-range carbon equivalent is not calculated
CET: composition source not verified; standard-range carbon equivalent is not calculated

Composition

ElementComposition requirement
C0.3 ~ 0.37
Cr0.9 ~ 1.2
Mn0.6 ~ 0.9
Mo0.15 ~ 0.3
P≤ 0.035 (lower limit not stated)
S≤ 0.035 (lower limit not stated)
Si≤ 0.4 (lower limit not stated)

Applicability and limitations

A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

34CrMo4 · DIN 17204-1990

Original-source verification is incomplete; this is not a formal standard reference

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Reference record
Verification status
Reference data; original source not verified

Carbon-equivalent reference

IIW / CEV: composition source not verified; standard-range carbon equivalent is not calculated
Pcm (Ito–Bessyo): composition source not verified; standard-range carbon equivalent is not calculated
CET: composition source not verified; standard-range carbon equivalent is not calculated

Composition

ElementComposition requirement
C0.3 ~ 0.37
Cr0.9 ~ 1.2
Mn0.6 ~ 0.9
Mo0.15 ~ 0.3
P≤ 0.035 (lower limit not stated)
S≤ 0.035 (lower limit not stated)
Si≤ 0.4 (lower limit not stated)

Applicability and limitations

A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

34CrMo4 · EN 10263

Original-source verification is incomplete; this is not a formal standard reference

Material form
Drawn wire
Verification status
Published on the website; original-source verification pending

Carbon-equivalent reference

IIW / CEV: composition source not verified; standard-range carbon equivalent is not calculated
Pcm (Ito–Bessyo): composition source not verified; standard-range carbon equivalent is not calculated
CET: composition source not verified; standard-range carbon equivalent is not calculated

Composition

ElementComposition requirement
C0.3 ~ 0.37
Cr0.9 ~ 1.2
Cu≤ 0.25 (lower limit not stated)
Mn0.6 ~ 0.9
Mo0.15 ~ 0.3
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Si≤ 0.3 (lower limit not stated)

Applicability and limitations

Give priority to the published technical page on the Creation Group website. Use local reference ranges only as supplementary composition cross-checks; the applicable standard for that product page, the technical agreement and actual verification take precedence.

View associated products →

34CrMo4 · GB /T 18248-2021

Original-source verification is incomplete; this is not a formal standard reference

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Reference record
Verification status
Reference data; original source not verified

Carbon-equivalent reference

IIW / CEV: composition source not verified; standard-range carbon equivalent is not calculated
Pcm (Ito–Bessyo): composition source not verified; standard-range carbon equivalent is not calculated
CET: composition source not verified; standard-range carbon equivalent is not calculated

Composition

ElementComposition requirement
C0.3 ~ 0.37
Cr0.9 ~ 1.2
Cu≤ 0.2 (lower limit not stated)
Mn0.6 ~ 0.9
Mo0.15 ~ 0.3
Ni≤ 0.3 (lower limit not stated)
P≤ 0.02 (lower limit not stated)
S≤ 0.01 (lower limit not stated)
Si0.15 ~ 0.35

Applicability and limitations

A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

34CrMo4 · JIS G 7105-2000

Original-source verification is incomplete; this is not a formal standard reference

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Reference record
Verification status
Reference data; original source not verified

Carbon-equivalent reference

IIW / CEV: composition source not verified; standard-range carbon equivalent is not calculated
Pcm (Ito–Bessyo): composition source not verified; standard-range carbon equivalent is not calculated
CET: composition source not verified; standard-range carbon equivalent is not calculated

Composition

ElementComposition requirement
C0.3 ~ 0.37
Cr0.9 ~ 1.2
Mn0.6 ~ 0.9
Mo0.15 ~ 0.3
P≤ 0.035 (lower limit not stated)
S≤ 0.035 (lower limit not stated)

Applicability and limitations

A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

34CrMo4 · DIN EN 10277:2018-09

Original table in an informative annex verified; normative composition requirements and edition still require verification. For reference only.

Material category
Alloy steel
Subcategory
Alloy steel
Material form
Reference record
Composition basis
Heat analysis in an informative annex; for reference only
Verification status
Original table in an informative annex verified; normative composition requirements and edition still require verification
Standard edition
DIN EN 10277:2018-09
Table / clause
Informative Annex A.4
PDF page references
47
Unit
mass fraction (wt%)
Analysis type
Heat analysis (informative reference)

Carbon-equivalent reference

Composition from an informative standard annex is for reference only. Normative composition and edition remain unverified; standard-range carbon equivalents and reverse matching are disabled.

Composition

ElementComposition requirement
C0.3 ~ 0.37
Si0.1 ~ 0.4
Mn0.6 ~ 0.9
P≤ 0.025 (lower limit not stated)
S≤ 0.035 (lower limit not stated)
Cr0.9 ~ 1.2
Mo0.15 ~ 0.3
Cu≤ 0.4 (lower limit not stated)

Applicability and limitations

The original informative-annex table has been checked and is for reference only. Clause 7.1.2 requires chemical composition to be determined under the cited standard; the formal normative composition and applicable edition remain unverified. Do not use it as a delivery guarantee, a reverse-search acceptance criterion or a basis for standard-range carbon equivalent.

Composition conditions

Conditional requirement

Verification notes

The original informative-annex table has been checked and is for reference only. Clause 7.1.2 requires chemical composition to be determined under the cited standard; the formal normative composition and applicable edition remain unverified. Do not use it as a delivery guarantee, a reverse-search acceptance criterion or a basis for standard-range carbon equivalent.
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