ASTM A335/A335M P91 Seamless ferritic and austenitic alloy steel pipes for superheaters and heat exchangers

2024年11月26日

ASTM A335/A335M P91 Seamless ferritic and austenitic alloy steel pipes for superheaters and heat exchangers is ASME SA-335/SA-335M standard steel number; P91 steel is a new heat-resistant steel based on P9 (9Cr-1Mo) steel, adding V, ...