S31277 - ASTM A249/A249M-2004

USA UNS	S31277
Corresponding Standard	ASTM A249/A249M-2004 Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
Classification	Austenitic Stainless Steel

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N
Minimum Value	-	-	-	-	-	20.5	26	0.5	6.5	0.3
Maximum Value	0.02	0.5	3	0.03	0.01	23	28	1.5	8	0.4

Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
≥770	≥360	≥40	HRB ≤100

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