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SUJ2

4 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 SUJ2 →

SUJ2 · JIS G4805

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

Material form
Wire rod
Original record status
Reference transcription of standard
Standard edition
JIS G 4805:2008
Table / clause
Table 1

Carbon-equivalent reference

IIW / CEV:1.2100–1.5493Known-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):1.0200–1.2362Known-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:1.0150–1.2543 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

ElementComposition requirement
C0.95 ~ 1.1
Si0.15 ~ 0.35
Mn≤ 0.5 (lower limit not stated)
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cr1.3 ~ 1.6
Mo≤ 0.08 (lower limit not stated)
Ni≤ 0.25 (lower limit not stated)
Cu≤ 0.2 (lower limit not stated)

Applicability and limitations

JIS G 4805:2008; Heat analysis, mass percent; See the original page for table notes and applicability conditions. This record concerns wire rod, under note a, Cu≤0.20%; Non-wire-rod maximum 0.25%. No edition is stated on the website; Displayed under this source edition; contract applicability is not established

Verification notes

Standard source: JIS G 4805:2008 · Table 1View associated products →

SUJ2 · JIS G 4805:2008

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

Material category
Alloy steel
Subcategory
High-carbon chromium bearing steel
Material form
Reference record
Original record status
Original standard verified
Standard edition
JIS G 4805:2008
Table / clause
Table 1 and notes a–d; 4c

Carbon-equivalent reference

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

Wire rod, heat analysis, Table 1, note a Cu≤0.20%
IIW / CEV:1.2100–1.5493Known-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):1.0200–1.2362Known-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:1.0150–1.2543 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.
Steel products other than wire rod, heat analysis, Table 1, note a Cu≤0.25%
IIW / CEV:1.2100–1.5527Known-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):1.0200–1.2387Known-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:1.0150–1.2568 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)

ElementComposition requirement
C0.95 ~ 1.1
Si0.15 ~ 0.35
Mn≤ 0.5 (lower limit not stated)
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cr1.3 ~ 1.6
Mo≤ 0.08 (lower limit not stated)
Ni≤ 0.25 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)

Applicability and limitations

Table 1 Heat analysis, unit mass fraction %. ; Note a: Ni/Cu each ≤0.25%, with Cu≤0.20% for wire rod.. ; Note b: except for the purpose of deoxidation, elements not specified shall not be intentionally added without agreement between both parties; Agreement may allow addition of elements outside the table up to 0.25%, which cannot be presumed as a general guaranteed upper limit for all residual elements. ; Note c: When product analysis is required by the purchaser, it shall be tested according to 14.1; permissible deviations shall be per JIS G0321 Table 4; Heat analysis limits cannot be directly used as product analysis tolerances. ; Note d: Mo impurity for SUJ2/3 ≤0.08%. ; Under 4c, spheroidizing annealing is normally performed but may be omitted when specified by the purchaser.; This manufacturing condition clause itself is not proof that all parts are suitable for cold heading.

Original condition-branch records

Wire rod, heat analysis, Table 1, note a Cu≤0.20%

ElementComposition requirement
C0.95 ~ 1.1
Si0.15 ~ 0.35
Mn≤ 0.5 (lower limit not stated)
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cr1.3 ~ 1.6
Mo≤ 0.08 (lower limit not stated)
Ni≤ 0.25 (lower limit not stated)
Cu≤ 0.2 (lower limit not stated)

Steel products other than wire rod, heat analysis, Table 1, note a Cu≤0.25%

ElementComposition requirement
C0.95 ~ 1.1
Si0.15 ~ 0.35
Mn≤ 0.5 (lower limit not stated)
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cr1.3 ~ 1.6
Mo≤ 0.08 (lower limit not stated)
Ni≤ 0.25 (lower limit not stated)
Cu≤ 0.25 (lower limit not stated)

A condition branch must be selected

Yes

Verification notes

PDF, page 4, Table 1 and footnotes have been checked

SUJ2 · Nippon Steel Wire Rods EXE203 2008.3 / JIS G4805-1999

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

Material category
Bearing steel
Subcategory
Bearing steel
Material form
Wire rod
Original record status
Manufacturer source verified
Document edition
Cat. No. EXE203 2008.3 PDF; cover copyright 2008
Document title
Nippon Steel Wire Rods
Table / clause
Printed page 19, table index 1
PDF page references
11
Unit
Mass fraction (%)
Analysis type
The original catalogue does not explicitly identify the analysis type for this table
Manufacturer
NIPPON STEEL CORPORATION

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:1.2100–1.5493Known-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):1.0200–1.2362Known-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:1.0150–1.2543 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

ElementComposition requirement
C0.95 ~ 1.1
Si0.15 ~ 0.35
Mn≤ 0.5 (lower limit not stated)
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cr1.3 ~ 1.6
Ni≤ 0.25 (lower limit not stated)
Cu≤ 0.2 (lower limit not stated)
Mo≤ 0.08 (lower limit not stated)

Applicability and limitations

Historical Nippon Steel wire-rod catalogue EXE203 2008.3, PDF page 11

printed page 19, JIS G4805-1999. The original catalogue does not explicitly identify the analysis type for this table. Manufacturer range data, not guaranteed standard limits or heat-specific measurements; this does not establish supply by Creation Group. Condition: original bearing-steel note, Cu is generally ≤0.25, with a specific wire-rod limit ≤0.20%; Wire-rod condition selected.

Composition conditions

Verification notes

Grouped tables were expanded in full and checked against original images and notes. Ordinary, residual and conditional elements are kept separate; suffix tables lacking complete base-steel composition are excluded.

SUJ2 · CHINA STEEL CORPORATION · Bars and Wire Rods Product Catalogue 2014-C1 / 7.1.13 JIS G4805 (Edition unspecified)

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

Material category
Bearing steel
Subcategory
Bearing steel
Material form
Bars and wire rod
Original record status
Manufacturer source verified
Document edition
CAT.NO.3-BD-01-2014-C1 (stated on the back cover)
Document title
Bars and Wire Rods Product Catalogue
Table / clause
7.1.13 JIS G4805 (Edition unspecified)
PDF page references
21
Unit
Mass fraction (%)
Analysis type
The original catalogue does not explicitly identify the analysis type for this table
Manufacturer
CHINA STEEL CORPORATION

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:1.2100–1.5493Known-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):1.0200–1.2362Known-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:1.0150–1.2543 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

ElementComposition requirement
C0.95 ~ 1.1
Si0.15 ~ 0.35
Mn≤ 0.5 (lower limit not stated)
P≤ 0.025 (lower limit not stated)
S≤ 0.025 (lower limit not stated)
Cr1.3 ~ 1.6
Mo≤ 0.08 (lower limit not stated)
Ni≤ 0.25 (lower limit not stated)
Cu≤ 0.2 (lower limit not stated)

Applicability and limitations

China Steel bar and wire-rod catalogue CAT.NO.3-BD-01-2014-C1, PDF page 21

printed page 19, 7.1.13 JIS G4805 (edition not stated). The original catalogue does not explicitly identify the analysis type for this table. Historical manufacturer range data, not guaranteed standard limits or heat-specific measurements; this does not establish supply by Creation Group. Condition: each alloying element added by agreement is ≤0.25%; this option does not automatically add unknown elements.

Composition conditions

Verification notes

Merged cells in all 28 catalogue tables were reconstructed geometrically, with no missing cells. Original images, continuation pages and notes are recorded; disputed conditions are withheld.
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