A335 Grade P93 K91350 - ASTM A335/A335M-2024(b)

Grade	A335 Grade P93
USA UNS	K91350
Corresponding Standard	ASTM A335/A335M-2024(b) Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
Classification	Alloy Steel

A335 Grade P93 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	N	W	V	B	Co	Al	O	Nd	More
Minimum Value	0.05	0.05	0.2	-	-	8.5	-	0.005	2.5	0.15	0.007	2.5	-	-	0.01	Nb+Ta: 0.05~0.12
Maximum Value	0.1	0.5	0.7	0.02	0.008	9.5	0.2	0.015	3.5	0.3	0.015	3.5	0.03	0.005	0.06	Nb+Ta: 0.05~0.12

A335 Grade P93 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Normalizing （1070~1170°C）+ Tempering（750~790°C）	≥620	≥440	l: ≥19	HBW: ≤250 HV: ≤265 HRC: ≤25

l=longitudinal；t=transverse

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