SA645 Grade B - ASME SA-645/SA-645M-2023

Grade	SA645 Grade B
Corresponding Standard	ASME SA-645/SA-645M-2023 Pressure Vessel Plates, 5 % and 5 1/2 % Nickel Alloy Steels, Specially Heat Treated
Classification	Alloy Steel

SA645 Grade B Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	Al
Minimum Value	-	0.15	0.9	-	-	0.1	5	0.1	-	0.02
Maximum Value	0.13	0.3	1.5	0.02	0.01	1	6	0.3	0.01	0.05

SA645 Grade B Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
690~830	≥590	≥20

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