A249 TP309HCb S30941 - ASTM A249/A249M-2004

Grade	A249 TP309HCb
USA UNS	S30941
Corresponding Standard	ASTM A249/A249M-2004 Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
Classification	Austenitic Stainless Steel

A249 TP309HCb Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	More
Minimum Value	0.04	-	-	-	-	22	12	Nb(Cb)：10C~1.10
Maximum Value	0.1	1	2	0.045	0.03	24	16	Nb(Cb)：10C~1.10

A249 TP309HCb Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
≥515	≥205	≥35	HRB ≤90

A249TP309HCb Corresponding Standards(Same grade name, different standards)

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