A234 WPB - ASTM A234/A234M-2023

Grade	A234 WPB
Corresponding Standard	ASTM A234/A234M-2023 Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
Classification	Carbon Steel

A234 WPB Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	More
Minimum Value	-	0.1	0.29	-	-	-	-	-	-	-	Cu+Ni+Cr+Mo≤1
Maximum Value	0.3	-	1.06	0.05	0.058	0.4	0.4	0.4	0.15	0.08	Cu+Ni+Cr+Mo≤1

• When fittings are of welded construction, the grade and marking symbol shown above shall be supplemented by letter “W”. e.g. WPBW

A234 WPB Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
≥415	≥240	long. : L0=4D: ≥22* L0=50: ≥30© tr. : L0=4D: ≥14* L0=50: ≥20©※

• L0 Gauge length, Unit mm. long. Longitudinal, tr. Transverse

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