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P91
Standard YB /T 4323-2013 Centrifugal casting pipe billet
Standard ASTM A335/A335M-2018 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
Standard ASME SA-335/SA-335M-2021 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service


Chemical Composition(%)


Standard Material Designation Chemical Composition (%)
YB /T 4323-2013
Centrifugal casting pipe billet
P91
 
Min
Max
ASTM A335/A335M-2018
Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
A335 Grade P91
(K91560)
(P91)
(A335 Grade P91 Type1)
 
Min
Max
ASME SA-335/SA-335M-2021
Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
SA-335 Grade P91
(K91560)
(P91)
(SA-335 Grade P91 Type1)
 
Min
Max
ASME SA-335/SA-335M-2021
Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
SA-335 Grade P91
(K91560)
(P91)
(SA-335 Grade P91 Type2)
 
Min
Max
For Reference Only