A335 Grade P91 K91560 P91 A335 Grade P91 Type1 - ASTM A335/A335M-2018

Grade	A335 Grade P91
USA UNS	K91560
Other Names
Corresponding Standard	ASTM A335/A335M-2018 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
Classification	Alloy Steel

A335 Grade P91 Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	Ti	V	Nb	Zr	Al	More
Type1	Minimum Value	0.08	0.2	0.3	-	-	8	-	0.85	0.03	-	0.18	0.06	-	-	/
Type1	Maximum Value	0.12	0.5	0.6	0.02	0.01	9.5	0.4	1.05	0.07	0.01	0.25	0.1	0.01	0.02	/

	Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	As	N	Ti	W	V	Nb	Zr	B	Al	Sn	Sb	More
Type2	Minimum Value	0.08	0.2	0.3	-	-	8	-	-	0.85	-	0.035	-	-	0.18	0.06	-	-	-	-	-	N/Al≥ 4.0
Type2	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

A335 Grade P91 Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Seamless Pipe	Heat Treatment	≥585	≥415		190~250
Seamless Pipe; Transverse				≥13
Seamless Pipe; Longitudinal				≥20

The elongation data measured by wall thickness of the material and the material heat treatment system are not listed in the table, and the detailed data are in the original

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