ASTM A213/ASME SA213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater and Heat-Exchanger Tubes

Chemical Composition of ASTM A213 T91 Alloy Steel Pipes

C % Mn % P % S % Si % Cr % Mo % V % N % Ni % Al % Nb %
0.08-0.12 0.3-0.6 0.02 max 0.01 max 0.2-0.5 8.0-9.5 0.85-1.05 0.18-0.25 0.03-0.07 0.4 max 0.04 max 0.06-0.10

 

Mechanical Properties of ASTM A213 T91 Alloy Steel Pipes

Tensile Strength, Mpa Yield Strength, MPa Elongation, % Hardness, HB
585 min 415 min 20 min 250 max