1119

2 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.

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1119 · ASTM A29/A29M-2012

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

Material category: Carbon steel
Subcategory: Carbon steel
Material form: Reference record
Original record status: Original standard verified
Standard edition: ASTM A29/A29M-2012
Table / clause: Table 1, footnotes A–G
PDF page references: 1、3、4

Carbon-equivalent reference

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

Si not otherwise specified in the order; Table 1 does not specify Si, which is not treated as zero

IIW / CEV：0.3067–0.4167 Known-item contribution, not a complete value; missing Cr, Mo, 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）：0.1900–0.2650Known-element contribution; incomplete value; missing Si, Cu, Cr, Ni, Mo, 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：0.2400–0.3300 Known-item contribution, not a complete value; missing Mo, Cr, 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.

Order explicitly adopts Si ≤0.1% under note B

Pcm（Ito–Bessyo）：0.1900–0.2683 Known-item contribution, not a complete value; missing Cu, Cr, Ni, Mo, 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%.

Order explicitly adopts Si 0.1–0.2% under note B

Pcm（Ito–Bessyo）：0.1933–0.2717 Known-item contribution, not a complete value; missing Cu, Cr, Ni, Mo, 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%.

Order explicitly adopts Si 0.15–0.35% under note B

Pcm（Ito–Bessyo）：0.1950–0.2767 Known-item contribution, not a complete value; missing Cu, Cr, Ni, Mo, 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%.

Order explicitly adopts Si 0.2–0.4% under note B

Pcm（Ito–Bessyo）：0.1967–0.2783 Known-item contribution, not a complete value; missing Cu, Cr, Ni, Mo, 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%.

Order explicitly adopts Si 0.3–0.6% under note B

Pcm（Ito–Bessyo）：0.2000–0.2850 Known-item contribution, not a complete value; missing Cu, Cr, Ni, Mo, 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%.

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

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33

Applicability and limitations

2012 original text Table 1 heat analysis mass fraction wt%; The applicability and deviations of product analysis must be separately confirmed according to 4.3 and Table 5. Grades and product forms are retained as listed in this standard; suitability for cold heading is not automatically guaranteed. The Si listed in Note B is an option to be specified in the order; Unknown when unspecified, do not fill as zero. Note D only specifies Pb 0.15–0.35% for lead-bearing 'L' grades; Standard grades without 'L' shall not automatically include Pb. Note F: Additions of Bi/Ca/Se/Te are subject to agreement between the supplier and purchaser; do not enter zero when no value is specified..

Original condition-branch records

Si not otherwise specified in the order; Table 1 does not specify Si, which is not treated as zero

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33

Order explicitly adopts Si ≤0.1% under note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	≤ 0.1 (lower limit not stated)

Order explicitly adopts Si 0.1–0.2% under note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	0.1 ～ 0.2

Order explicitly adopts Si 0.15–0.35% under note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	0.15 ～ 0.35

Order explicitly adopts Si 0.2–0.4% under note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	0.2 ～ 0.4

Order explicitly adopts Si 0.3–0.6% under note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	0.3 ～ 0.6

A condition branch must be selected

Yes

Verification notes

The 2012 Table 1 and footnotes have been checked; order-specific optional compositions and base-table limits remain separate.

1119 · ASTM A29/A29M-2023

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

Material category: Carbon steel
Subcategory: Carbon steel
Material form: Reference record
Original record status: Original standard verified
Standard edition: ASTM A29/A29M-2023
Table / clause: Table 1, footnotes A–G
PDF page references: 4
Unit: Mass fraction (wt%)
Analysis type: Heat analysis (composition ranges and limits in the original table)

Carbon-equivalent reference

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

Si not otherwise specified in the order; Table 1 does not specify Si, which is not treated as zero

Order explicitly adopts Si ≤0.1% under Table 1 note B

Order explicitly adopts Si 0.1–0.2% under Table 1 note B

Order explicitly adopts Si 0.15–0.35% under Table 1 note B

Order explicitly adopts Si 0.2–0.4% under Table 1 note B

Order explicitly adopts Si 0.3–0.6% under Table 1 note B

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

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33

Applicability and limitations

Original ASTM A29/A29M-2023, Table 1: the basic table gives heat-analysis mass fractions wt%; Product-analysis tolerances require separate confirmation under 4.3 and Table 5 and are not added to heat-analysis limits. When 4.1.1 is ordered by a grade in this table, the corresponding heat-analysis limits must be met; Other ordered compositions require separate agreement under 4.1.2 and Table 3/4 and are not merged into this table. General requirements for hot-worked bars; chemistry alone does not establish cold-heading suitability, supply or mechanical properties. The Si ranges in note B are common options when required by the order; Default Si is unspecified; neither a universal Si range nor zero may be assumed. Note D: Pb for leaded steel is 0.15–0.35%; L must remain part of the grade identity and is not included in ordinary grades; If lead is added in the ladle stream, its cast or heat-analysis content cannot be determined. Note F: Bi/Ca/Se/Te is specified by purchaser-supplier agreement; Unspecified numerical values are not entered as zero. The 4.3.2 product-analysis tolerance restrictions for P and S do not apply to resulfurized or rephosphorized/resulfurized steels; Product-analysis tolerances are not added to heat-analysis limits.

Original condition-branch records

Si not otherwise specified in the order; Table 1 does not specify Si, which is not treated as zero

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33

Order explicitly adopts Si ≤0.1% under Table 1 note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	≤ 0.1 (lower limit not stated)

Order explicitly adopts Si 0.1–0.2% under Table 1 note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	0.1 ～ 0.2

Order explicitly adopts Si 0.15–0.35% under Table 1 note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	0.15 ～ 0.35

Order explicitly adopts Si 0.2–0.4% under Table 1 note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	0.2 ～ 0.4

Order explicitly adopts Si 0.3–0.6% under Table 1 note B

Element	Composition requirement
C	0.14 ～ 0.2
Mn	1.0 ～ 1.3
P	≤ 0.04 (lower limit not stated)
S	0.24 ～ 0.33
Si	0.3 ～ 0.6

A condition branch must be selected

Yes

Verification notes

Existing OCR of the four-page, 190-row original 2023 table was parsed cell by cell. All values were screened for differences against independent 2012 data and checked against the original 2023 images and footnotes; no values were filled from the older edition.