A541 Grade 3VCb - ASTM A 541/A541M-2005(2020)

Grade	A541 Grade 3VCb
Corresponding Standard	ASTM A541/A541M-2005(2020) Standard Specification for Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components
Classification	Alloy Steel

A541 Grade 3VCb Chemical Element Composition Content (%)

Component	C	Si ^①	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	Ca
Minimum Value	0.1	-	0.3	-	-	2.7	-	-	0.9	-	0.2	0.015	0.0005
Maximum Value	0.15	0.1	0.6	0.02	0.01	3.3	0.25	0.25	1.1	0.015	0.3	0.07	0.015

① When vacuum carbon-deoxidation is required for the classes included in Supplementary Requirement S10, the silicon content shall be 0.10 % max.

② For Grade 22V, rare earth metals (REM) may be added in place of calcium, subject to agreement between the producer and the purchaser. In that case the total amount of REM shall be determined and reported.

A541 Grade 3VCb Mechanical Properties

Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Impact Energy Absorption KV2 J
585~760	≥415	≥18	≥45	-18 °C：≥54

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