A234 WP911 - ASTM A234/A234M-2023

Grade	A234 WP911
Corresponding Standard	ASTM A234/A234M-2023 Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
Classification	Alloy Steel

A234 WP911 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	Ti	W	V	Nb	Zr	B	Al
Minimum Value	0.09	0.1	0.3	-	-	8.5	-	0.9	0.04	-	0.9	0.18	0.06	-	0.0003	-
Maximum Value	0.13	0.5	0.6	0.02	0.01	9.5	0.4	1.1	0.09	0.01	1.1	0.25	0.1	0.01	0.006	0.02

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

A234 WP911 Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
620~840	≥440	long. : L0=4D: ≥20* tr. : L0=4D: ≥13*

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

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!