N08031 - ASTM A213/A213M-2025

USA UNS	N08031
Corresponding Standard	ASTM A213/A213M-2025 Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
Classification	Austenitic Stainless Steel

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N
Minimum Value	-	-	-	-	-	26	30	1	6	0.15
Maximum Value	0.015	0.3	2	0.02	0.01	28	32	1.4	7	0.25

Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
≥650	≥275	≥40

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