ASTM A335/ASME SA335 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

Specification ASTM A335/ASME SA335 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
Standard ASTM A335, ASME SA335
Equivalents EN 10216-2, ASTM A213, ASME SA213, GOST 550-75, NBR 5603
Materials P91, K91560

Chemistry Composition of ASTM A335/ASME SA335 P91, K91560

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 A335/ASME SA335 P91, K91560

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