ASTM A268/ASME SA268 Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Specification ASTM A268/ASME SA268 Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
Standard ASTM A268, ASME SA268
Equivalents
Materials 26-3-3, S44660

Chemistry Composition of ASTM A268/ASME SA268 26-3-3, S44660

C, % Mn, % P, % S, % Si, % Cr, % Ni, % Mo, % N, % Ti+Nb, %
0.03 max 1.00 max 0.040 max 0.030 max 1.00 max 25.0-28.0 1.00-3.50 3.00-4.00 0.04 max 0.20-1.00, & 6(C+N) min

 

Mechanical Properties of ASTM A268/ASME SA268 26-3-3, S44660

Tensile Strength , MPa Yield Strength, MPa Elongation, % Hardness, HB
585 min 450 min 20 min 265 max