20CRMOH
5 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 20CRMOH →20CrMoH · GB/T 5216-2004
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
- GB/T 5216-2004
- Table / clause
- Tables 1 and 2, notes a–c and clause 6.1; 15CrMoH includes Amendment No. 1
- PDF page references
- 1、6、7
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Tables 1/2: default heat analysis
IIW / CEV：0.4617–0.7200Known-element contribution; incomplete value; missing V 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）：0.2557–0.3865Known-element contribution; incomplete value; missing 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：0.2825–0.4300 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
Purchaser-specified semi-free-cutting S .020–.035%; prefix S is added before designation H
IIW / CEV：0.4617–0.7200Known-element contribution; incomplete value; missing V 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）：0.2557–0.3865Known-element contribution; incomplete value; missing 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：0.2825–0.4300 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
Hot pressure working Cu≤.20%
IIW / CEV：0.4617–0.7133Known-element contribution; incomplete value; missing V 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）：0.2557–0.3815Known-element contribution; incomplete value; missing 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：0.2825–0.4250 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
For hot-pressure working, Cu≤0.20%; if the purchaser requires semi-free-cutting S at 0.020–0.035%, prefix the designation H with S.
IIW / CEV：0.4617–0.7133Known-element contribution; incomplete value; missing V 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）：0.2557–0.3815Known-element contribution; incomplete value; missing 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：0.2825–0.4250 Independent-element envelope of standard ranges; not measured heat-analysis values 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)
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.3 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Applicability and limitations
GB/T 5216—2004 original Tables 1/2 and 6.1, ladle-analysis mass fraction wt%; retain the actual 2004 edition.
For high-quality steel, Note a to Table 1 adds A before H (e.g. 40CrAH); P/S by quality level and residual Cu/Cr/Ni follow Table 2; do not mix with the 2014 edition.
Under 6.1.3, Cu≤0.20% for hot-pressure processing. If the purchaser requires S 0.020–0.035%, add S before H; the sulfur tolerance ±0.005 is separately stated and does not expand the default range.
Table 1 alloy-element ranges take precedence over Table 2 residual limits; a blank means unspecified, not zero.
H/HH/HL hardenability bands, delivery condition, hardness and suitability for cold-heading processes require separate verification; this does not automatically create a supply product.
Original condition-branch records
Tables 1/2: default heat analysis
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.3 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Purchaser-specified semi-free-cutting S .020–.035%; prefix S is added before designation H
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | 0.02 ～ 0.035 |
| Cu | ≤ 0.3 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Hot pressure working Cu≤.20%
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.2 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
For hot-pressure working, Cu≤0.20%; if the purchaser requires semi-free-cutting S at 0.020–0.035%, prefix the designation H with S.
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | 0.02 ～ 0.035 |
| Cu | ≤ 0.2 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
A condition branch must be selected
YesVerification notes
2004 original: all 24 rows, Table 2 and Amendment No. 1 visually checked; high-quality grade applied according to note a.20CrMoH · GB/T 5216-2014
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
- GB/T 5216-2014
- Table / clause
- Table 1 and notes a/b; clauses 6.1.1–6.1.4
- PDF page references
- 1、7、8
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Typically, residual Cu ≤0.25%; default S ≤0.035%
IIW / CEV：0.4617–0.7167Known-element contribution; incomplete value; missing V 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）：0.2557–0.3840Known-element contribution; incomplete value; missing 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：0.2825–0.4275 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
Normally residual Cu ≤0.25%; at the purchaser’s request, S is 0.015–0.035% (the ±0.005% product-analysis tolerance for S must be checked separately).
IIW / CEV：0.4617–0.7167Known-element contribution; incomplete value; missing V 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）：0.2557–0.3840Known-element contribution; incomplete value; missing 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：0.2825–0.4275 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
For hot-pressure working, Cu≤0.20%; default S≤0.035%.
IIW / CEV：0.4617–0.7133Known-element contribution; incomplete value; missing V 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）：0.2557–0.3815Known-element contribution; incomplete value; missing 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：0.2825–0.4250 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
For hot-pressure working, Cu≤0.20%; S 0.015–0.035% only when required by the purchaser (product-analysis tolerance ±0.005 to be checked separately).
IIW / CEV：0.4617–0.7133Known-element contribution; incomplete value; missing V 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）：0.2557–0.3815Known-element contribution; incomplete value; missing 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：0.2825–0.4250 Independent-element envelope of standard ranges; not measured heat-analysis values 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)
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.25 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Applicability and limitations
Official GB/T5216-2014, cover PDF1, Clause 6.1 PDF7, Table 1 and footnotes PDF8/9; Heat-analysis mass fractions wt%. ; Clause 6.1.2 residual Cu≤.25, Cr≤.30, Ni≤.30%; Specified alloy ranges in the table shall take priority; Hot working Cu≤.20 separate condition. ; 6.1.3 O≤.0020%; Unspecified residual limits such as Mo must not be assumed zero. ; Note a: Only for 16CrMnH/20CrMnH/25CrH/28CrH, Si≤.12% may be agreed at the buyer's request; the effect on mechanical properties must be considered.. ; Note b: Per buyer's request, S may be .015–.035%; in this case, the finished product tolerance is ±.005%, which is not a default heat analysis relaxation. ; H/HH/HL are different hardenability bands; S denotes a sulfur-related grade-designation condition.; Only compositions of H grades are listed this time; hardenability curves and all mechanical properties are not claimed to have been verified. ; The intended use for metal forming or machining under this standard must be stated in the contract.; Cold heading, annealing and actual wire-rod supply require separate confirmation; do not automatically add products..
Original condition-branch records
Typically, residual Cu ≤0.25%; default S ≤0.035%
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.25 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Normally residual Cu ≤0.25%; at the purchaser’s request, S is 0.015–0.035% (the ±0.005% product-analysis tolerance for S must be checked separately).
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | 0.015 ～ 0.035 |
| Cu | ≤ 0.25 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
For hot-pressure working, Cu≤0.20%; default S≤0.035%.
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.2 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
For hot-pressure working, Cu≤0.20%; S 0.015–0.035% only when required by the purchaser (product-analysis tolerance ±0.005 to be checked separately).
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | 0.015 ～ 0.035 |
| Cu | ≤ 0.2 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
A condition branch must be selected
YesVerification notes
Official source cover, all 32 grades in Table 1, footnotes and 6.1 visually checked.20CrMoH · GB/T 5216-2014
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
- GB/T 5216-2014
- Table / clause
- Table 1 and notes a/b; clauses 6.1.1–6.1.4
- PDF page references
- 1、7、8
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Typically, residual Cu ≤0.25%; default S ≤0.035%
IIW / CEV：0.4617–0.7167Known-element contribution; incomplete value; missing V 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）：0.2557–0.3840Known-element contribution; incomplete value; missing 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：0.2825–0.4275 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
Normally residual Cu ≤0.25%; at the purchaser’s request, S is 0.015–0.035% (the ±0.005% product-analysis tolerance for S must be checked separately).
IIW / CEV：0.4617–0.7167Known-element contribution; incomplete value; missing V 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）：0.2557–0.3840Known-element contribution; incomplete value; missing 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：0.2825–0.4275 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
For hot-pressure working, Cu≤0.20%; default S≤0.035%.
IIW / CEV：0.4617–0.7133Known-element contribution; incomplete value; missing V 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）：0.2557–0.3815Known-element contribution; incomplete value; missing 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：0.2825–0.4250 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
For hot-pressure working, Cu≤0.20%; S 0.015–0.035% only when required by the purchaser (product-analysis tolerance ±0.005 to be checked separately).
IIW / CEV：0.4617–0.7133Known-element contribution; incomplete value; missing V 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）：0.2557–0.3815Known-element contribution; incomplete value; missing 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：0.2825–0.4250 Independent-element envelope of standard ranges; not measured heat-analysis values 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)
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.25 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Applicability and limitations
Official GB/T5216-2014, cover PDF1, Clause 6.1 PDF7, Table 1 and footnotes PDF8/9; Heat-analysis mass fractions wt%. ; Clause 6.1.2 residual Cu≤.25, Cr≤.30, Ni≤.30%; Specified alloy ranges in the table shall take priority; Hot working Cu≤.20 separate condition. ; 6.1.3 O≤.0020%; Unspecified residual limits such as Mo must not be assumed zero. ; Note a: Only for 16CrMnH/20CrMnH/25CrH/28CrH, Si≤.12% may be agreed at the buyer's request; the effect on mechanical properties must be considered.. ; Note b: Per buyer's request, S may be .015–.035%; in this case, the finished product tolerance is ±.005%, which is not a default heat analysis relaxation. ; H/HH/HL are different hardenability bands; S denotes a sulfur-related grade-designation condition.; Only compositions of H grades are listed this time; hardenability curves and all mechanical properties are not claimed to have been verified. ; The intended use for metal forming or machining under this standard must be stated in the contract.; Cold heading, annealing and actual wire-rod supply require separate confirmation; do not automatically add products..
Original condition-branch records
Typically, residual Cu ≤0.25%; default S ≤0.035%
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.25 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Normally residual Cu ≤0.25%; at the purchaser’s request, S is 0.015–0.035% (the ±0.005% product-analysis tolerance for S must be checked separately).
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | 0.015 ～ 0.035 |
| Cu | ≤ 0.25 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
For hot-pressure working, Cu≤0.20%; default S≤0.035%.
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.2 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
For hot-pressure working, Cu≤0.20%; S 0.015–0.035% only when required by the purchaser (product-analysis tolerance ±0.005 to be checked separately).
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.03 (lower limit not stated) |
| S | 0.015 ～ 0.035 |
| Cu | ≤ 0.2 (lower limit not stated) |
| O | ≤ 0.002 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
A condition branch must be selected
YesVerification notes
Official source cover, all 32 grades in Table 1, footnotes and 6.1 visually checked.20CrMoH · GB/T 5216-2004
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
- GB/T 5216-2004
- Table / clause
- Tables 1 and 2, notes a–c and clause 6.1; 15CrMoH includes Amendment No. 1
- PDF page references
- 1、6、7
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Tables 1/2: default heat analysis
IIW / CEV：0.4617–0.7200Known-element contribution; incomplete value; missing V 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）：0.2557–0.3865Known-element contribution; incomplete value; missing 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：0.2825–0.4300 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
Purchaser-specified semi-free-cutting S .020–.035%; prefix S is added before designation H
IIW / CEV：0.4617–0.7200Known-element contribution; incomplete value; missing V 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）：0.2557–0.3865Known-element contribution; incomplete value; missing 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：0.2825–0.4300 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
Hot pressure working Cu≤.20%
IIW / CEV：0.4617–0.7133Known-element contribution; incomplete value; missing V 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）：0.2557–0.3815Known-element contribution; incomplete value; missing 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：0.2825–0.4250 Independent-element envelope of standard ranges; not measured heat-analysis values 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.
For hot-pressure working, Cu≤0.20%; if the purchaser requires semi-free-cutting S at 0.020–0.035%, prefix the designation H with S.
IIW / CEV：0.4617–0.7133Known-element contribution; incomplete value; missing V 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）：0.2557–0.3815Known-element contribution; incomplete value; missing 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：0.2825–0.4250 Independent-element envelope of standard ranges; not measured heat-analysis values 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)
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.3 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Applicability and limitations
GB/T 5216—2004 original Tables 1/2 and 6.1, ladle-analysis mass fraction wt%; retain the actual 2004 edition.
For high-quality steel, Note a to Table 1 adds A before H (e.g. 40CrAH); P/S by quality level and residual Cu/Cr/Ni follow Table 2; do not mix with the 2014 edition.
Under 6.1.3, Cu≤0.20% for hot-pressure processing. If the purchaser requires S 0.020–0.035%, add S before H; the sulfur tolerance ±0.005 is separately stated and does not expand the default range.
Table 1 alloy-element ranges take precedence over Table 2 residual limits; a blank means unspecified, not zero.
H/HH/HL hardenability bands, delivery condition, hardness and suitability for cold-heading processes require separate verification; this does not automatically create a supply product.
Original condition-branch records
Tables 1/2: default heat analysis
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.3 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Purchaser-specified semi-free-cutting S .020–.035%; prefix S is added before designation H
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | 0.02 ～ 0.035 |
| Cu | ≤ 0.3 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
Hot pressure working Cu≤.20%
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cu | ≤ 0.2 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
For hot-pressure working, Cu≤0.20%; if the purchaser requires semi-free-cutting S at 0.020–0.035%, prefix the designation H with S.
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.17 ～ 0.37 |
| Mn | 0.55 ～ 0.9 |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.25 |
| P | ≤ 0.035 (lower limit not stated) |
| S | 0.02 ～ 0.035 |
| Cu | ≤ 0.2 (lower limit not stated) |
| Ni | ≤ 0.3 (lower limit not stated) |
A condition branch must be selected
YesVerification notes
2004 original: all 24 rows, Table 2 and Amendment No. 1 visually checked; high-quality grade applied according to note a.20CrMoH · BEXG 021-2020
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Cold-heading steel
- Subcategory
- Cold-heading steel
- Material form
- Wire rod
- Original record status
- Manufacturer source verified
- Document edition
- BEXG 021-2020, sixteenth revision stated on the cover; issued and effective on 2020-12-29; The latest original document available on this computer only
- Document title
- Technical delivery conditions for cold-heading steel wire rod for automotive parts
- Table / clause
- Table 1
- PDF page references
- 9
- Unit
- Mass fraction (wt%)
- Manufacturer
- Baoshan Iron & Steel Co., Ltd. (Baosteel)
Carbon-equivalent reference
Estimate from manufacturer-published ranges, not a standard guarantee or measured heat result; formula applicability requires review against the application and process.
IIW / CEV：0.4617–0.7267Known-element contribution; incomplete value; missing V 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）：0.2550–0.3858Known-element contribution; incomplete value; missing 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：0.2825–0.4325 Envelope of independent element limits from manufacturer data; neither standard guarantee values nor measured heat results 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
| Element | Composition requirement |
|---|---|
| C | 0.17 ～ 0.23 |
| Si | 0.15 ～ 0.35 |
| Mn | 0.55 ～ 0.9 |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.03 (lower limit not stated) |
| Cr | 0.85 ～ 1.25 |
| Mo | 0.15 ～ 0.35 |
| Ni | ≤ 0.2 (lower limit not stated) |
| Cu | ≤ 0.2 (lower limit not stated) |
Applicability and limitations
Baosteel BEXG 021-2020, Table 1, row 85, PDF page 9; heat-analysis composition in wt%, hot-rolled wire rod. 2020 is the original edition available locally, with no claim that it is the company’s current latest edition. Special conditions and actual supply require separate confirmation.
Composition conditions
- Table 1 and its continuation give heat composition, in mass fractions wt%; The product is hot-rolled wire rod for automotive parts.
- Unless expressly stated otherwise, residual Cr≤0.20%, Ni≤0.20%, Cu≤0.20% and Mo≤0.06% apply; Specific requirements in the table and additional notes take precedence.
- A dash does not mean zero; Composition outside the table is not inferred from grade names or referenced standards.