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A576 1552

1 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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A576 1552 · ASTM A576-2017

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 A576-17
Table / clause
Table 1 · Notes C–G; Clause 1,5,7

Carbon-equivalent reference

IIW / CEV:0.6700–0.8000Known-element contribution; incomplete value; missing Cr, Mo, V, Ni, Cu; ordering or conditional requirements remain unresolved 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):0.5300–0.6250Known-element contribution; incomplete value; missing Si, Cu, Cr, Ni, Mo, V, B; ordering or conditional requirements remain unresolved 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:0.5900–0.7000Known-element contribution; incomplete value; missing Mo, Cr, Cu, Ni; ordering or conditional requirements remain unresolved 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
C0.47 ~ 0.55
Mn1.2 ~ 1.5
P≤ 0.04 (lower limit not stated)
S≤ 0.05 (lower limit not stated)

Applicability and limitations

ASTM A576-17 applies to hot-worked bars of quality carbon steel; Table 1 gives ladle chemistry. It must not be assumed to guarantee wire-rod supply or finished cold-heading properties. Table 1 note C: Si, when needed, is agreed at order; common options are ≤0.10, 0.10–0.20, 0.15–0.35 or 0.20–0.40%. Without agreement, do not assign a fixed Si value. Table 1 note D: Cu ≥0.20% may be specified when required; this is conditional. Notes E/F/G: Pb, B and Bi/Ca/Se/Te apply when specified; do not automatically add Pb or a B minimum to all grades. Clause 7.1 requires reporting Cu/Cr/Ni/Mo/V/Nb contents; a reporting requirement does not mean Table 1 sets limits for these elements. Clause 5.1 allows other chemical ranges to be agreed under Table 2; Table 2 is not a mandatory set of additional limits for every Table 1 grade.

Verification notes

The original standard text of Table 1 and its footnotes has been checked.
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