SA-299M Grade B - ASME SA-299/SA-299M-2023

Grade	SA-299M Grade B
Corresponding Standard	ASME SA-299/SA-299M-2023 Pressure Vessel Plates, Carbon Steel, Manganese-Silicon
Classification	Carbon Steel

SA-299M Grade B Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S
t≤25	Minimum Value	-	0.15	0.9	-	-
t≤25	Maximum Value	0.28	0.4	1.4	0.025	0.025

	Component	C	Si	Mn	P	S
t＞25	Minimum Value	-	0.15	0.9	-	-
t＞25	Maximum Value	0.3	0.4	1.5	0.025	0.025

SA-299M Grade B Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
t≤25	550~690	≥325	L0=200mm: ≥16 L0=50mm: ≥19
t＞25	550~690	≥310	L0=200mm: ≥16 L0=50mm: ≥19

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