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.
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:0.1800–0.2800 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):0.1100–0.1750Known-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:0.1400–0.2200 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
IIW / CEV:0.1800–0.2800 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):0.1100–0.1783 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%.
CET:0.1400–0.2200 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 0.1–0.2% under note B
IIW / CEV:0.1800–0.2800 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):0.1133–0.1817 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%.
CET:0.1400–0.2200 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 0.15–0.35% under note B
IIW / CEV:0.1800–0.2800 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):0.1150–0.1867 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%.
CET:0.1400–0.2200 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 0.2–0.4% under note B
IIW / CEV:0.1800–0.2800 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):0.1167–0.1883 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%.
CET:0.1400–0.2200 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 0.3–0.6% under note B
IIW / CEV:0.1800–0.2800 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):0.1200–0.1950 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%.
CET:0.1400–0.2200 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.
Si not otherwise specified in the order; Table 1 does not specify Si, which is not treated as zero;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1200Known-element contribution; incomplete value; missing Si, Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1200Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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 0.1–0.2% under note B;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1233Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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 0.15–0.35% under note B;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1250Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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 0.2–0.4% under note B;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1267Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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 0.3–0.6% under note B;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1300Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Applicability and limitations
Original 2012 Table 1: ladle composition, mass fraction (wt%); applicability and deviations for product analysis must be checked separately under 4.3 and Table 5. Grade designations and product forms are retained as listed in the standard; cold-heading suitability is not implied. Note B: Si is an order-specific option; if not specified, it is unknown, not zero. Note C: Cu ≥0.20% applies only when ordered; no upper limit is invented, and ordinary orders do not automatically include Cu. Note D: Pb 0.15–0.35% applies only to an expressly designated leaded L grade; Pb is not added automatically to grades without L. Note F: additions of Bi/Ca/Se/Te are determined by agreement between purchaser and supplier; absent a specified value, they are not zero. Note E: boron treatment gives an expected content under specified conditions and is not a uniform B limit for all ordinary grades.
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
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Order explicitly adopts Si ≤0.1% under note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
≤ 0.1 (lower limit not stated)
Order explicitly adopts Si 0.1–0.2% under note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.1 ~ 0.2
Order explicitly adopts Si 0.15–0.35% under note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.15 ~ 0.35
Order explicitly adopts Si 0.2–0.4% under note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.2 ~ 0.4
Order explicitly adopts Si 0.3–0.6% under note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.3 ~ 0.6
Si not otherwise specified in the order; Table 1 does not specify Si, which is not treated as zero;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si ≤0.1% under note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
≤ 0.1 (lower limit not stated)
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si 0.1–0.2% under note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.1 ~ 0.2
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si 0.15–0.35% under note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.15 ~ 0.35
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si 0.2–0.4% under note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.2 ~ 0.4
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si 0.3–0.6% under note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.3 ~ 0.6
Cu
≥ 0.2 (upper limit not stated)
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.
1011 · 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
IIW / CEV:0.1800–0.2800 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):0.1100–0.1750Known-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:0.1400–0.2200 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 Table 1 note B
IIW / CEV:0.1800–0.2800 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):0.1100–0.1783 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%.
CET:0.1400–0.2200 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 0.1–0.2% under Table 1 note B
IIW / CEV:0.1800–0.2800 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):0.1133–0.1817 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%.
CET:0.1400–0.2200 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 0.15–0.35% under Table 1 note B
IIW / CEV:0.1800–0.2800 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):0.1150–0.1867 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%.
CET:0.1400–0.2200 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 0.2–0.4% under Table 1 note B
IIW / CEV:0.1800–0.2800 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):0.1167–0.1883 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%.
CET:0.1400–0.2200 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 0.3–0.6% under Table 1 note B
IIW / CEV:0.1800–0.2800 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):0.1200–0.1950 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%.
CET:0.1400–0.2200 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.
Si not otherwise specified in the order; Table 1 does not specify Si, which is not treated as zero;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1200Known-element contribution; incomplete value; missing Si, Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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 Table 1 note B;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1200Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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 0.1–0.2% under Table 1 note B;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1233Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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 0.15–0.35% under Table 1 note B;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1250Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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 0.2–0.4% under Table 1 note B;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1267Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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 0.3–0.6% under Table 1 note B;order explicitly specifies Cu≥0.20% under note C
IIW / CEV:≥ 0.1933Known-element contribution; incomplete value; missing Cr, Mo, V, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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):≥ 0.1300Known-element contribution; incomplete value; missing Cr, Ni, Mo, V, B; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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:≥ 0.1500Known-element contribution; incomplete value; missing Mo, Cr, Ni; Cu has no specified upper limit; the carbon-equivalent upper bound cannot be determined 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
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Applicability and limitations
ASTM A29/A29M-2023 original Table 1: base entries are ladle-analysis mass fraction wt%; product-analysis tolerances are checked separately under 4.3 and Table 5, not added to ladle limits. Orders by Table 1 grade must meet its ladle limits under 4.1.1; other ordered chemistries are separately agreed under 4.1.2 and Tables 3/4 and must not be mixed into this table. General hot-wrought bar requirements do not, by chemistry alone, establish cold-heading suitability, supply or mechanical properties. Note B: the Si range is a common option only when required by the order; Si is unspecified by default, not a universal range or zero. Note C: Cu≥0.20% applies only when expressly required by the order and has no added upper limit. Note D: leaded steel Pb is 0.15–0.35%; retain L as part of the grade identity, not ordinary grades. If lead is added to the ladle stream, its cast or ladle-analysis value cannot be determined. Note F: Bi/Ca/Se/Te are specified by buyer-supplier agreement; do not enter zero when no value is given. Note E: only for expressly specified boron treatment of killed steel, expected B is 0.0005–0.003%; where usual Ti addition is not permitted, up to 0.005% may be expected. These are not mandatory B limits for all ordinary grades.
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
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Order explicitly adopts Si ≤0.1% under Table 1 note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
≤ 0.1 (lower limit not stated)
Order explicitly adopts Si 0.1–0.2% under Table 1 note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.1 ~ 0.2
Order explicitly adopts Si 0.15–0.35% under Table 1 note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.15 ~ 0.35
Order explicitly adopts Si 0.2–0.4% under Table 1 note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.2 ~ 0.4
Order explicitly adopts Si 0.3–0.6% under Table 1 note B
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.3 ~ 0.6
Si not otherwise specified in the order; Table 1 does not specify Si, which is not treated as zero;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si ≤0.1% under Table 1 note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
≤ 0.1 (lower limit not stated)
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si 0.1–0.2% under Table 1 note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.1 ~ 0.2
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si 0.15–0.35% under Table 1 note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.15 ~ 0.35
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si 0.2–0.4% under Table 1 note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.2 ~ 0.4
Cu
≥ 0.2 (upper limit not stated)
Order explicitly adopts Si 0.3–0.6% under Table 1 note B;order explicitly specifies Cu≥0.20% under note C
Element
Composition requirement
C
0.08 ~ 0.13
Mn
0.6 ~ 0.9
P
≤ 0.04 (lower limit not stated)
S
≤ 0.05 (lower limit not stated)
Si
0.3 ~ 0.6
Cu
≥ 0.2 (upper limit not stated)
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.WhatsAppTechnical enquiry →