A213 T91 Type 2 K90901 - ASTM A213/A213M-2019

Grade	A213 T91 Type 2
USA UNS	K90901
Corresponding Standard	ASTM A213/A213M-2019 Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
Classification	Alloy Steel

A213 T91 Type 2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	As	N	Ti	W	V	Nb	Zr	B	Al	Sn	Sb	More
Minimum Value	0.08	0.2	0.3	-	-	8	-	-	0.85	-	0.035	-	-	0.18	0.06	-	-	-	-	-	N/Al 4.0 min
Maximum Value	0.12	0.4	0.5	0.02	0.005	9.5	0.2	0.1	1.05	0.01	0.07	0.01	0.05	0.25	0.1	0.01	0.001	0.02	0.01	0.003	N/Al 4.0 min

A213 T91 Type 2 Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
≥585	≥415	≥20	190~250

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