A335 Grade P36 K21001 - ASTM A335/A335M-2024(b)

Grade	A335 Grade P36
USA UNS	K21001
Corresponding Standard	ASTM A335/A335M-2024(b) Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
Classification	Alloy Steel

A335 Grade P36 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	V	Nb	Al
Minimum Value	0.1	0.25	0.8	-	-	-	1	0.5	0.25	-	-	0.015	-
Maximum Value	0.17	0.5	1.2	0.03	0.025	0.3	1.3	0.8	0.5	0.02	0.2	0.045	0.05

A335 Grade P36 Mechanical Properties

	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
	Class 1	Normalizing（≥900°C） + Tempering（≥595°C）	≥415	≥205	l: ≥15	HBW: ≤250 HV: ≤265 HRC: ≤25
	Class 2	cooled from the austenitizing temperature by accelerated cooling in air or by liquid quenching	≥660	≥460	l: ≥15

l=longitudinal；t=transverse

A335GradeP36 Corresponding Standards(Same grade name, different standards)

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