A335 Grade P9 K90941 - ASTM A335/A335M-2018

Grade	A335 Grade P9
USA UNS	K90941
Corresponding Standard	ASTM A335/A335M-2018 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
Classification	Alloy Steel

A335 Grade P9 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo
Minimum Value	-	0.25	0.3	-	-	8	0.9
Maximum Value	0.15	1	0.6	0.025	0.025	10	1.1

A335 Grade P9 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
full or isothermal anneal or normalize and temper (≥675°C)	≥415	≥205	l: ≥30；t: ≥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

A335GradeP9 Corresponding Standards(Same grade name, different standards)

1	ASTM A335/A335M-2018
	A335 Grade P9 K90941
2	ASTM A335/A335M-2024(b)
	A335 Grade P9 K90941

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