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 TP446-1/TP446-2, S44600

Chemistry Composition of ASTM A268/ASME SA268 TP446-1/TP446-2, S44600

C, % Mn, % P, % S, % Si, % Cr, % Ni, % N, %  
0.20 max 1.50 max 0.040 max 0.030 max 1.00 max 23.0-27.0 0.75 max 0.25 max 1
0.12 max 1.50 max 0.040 max 0.030 max 1.00 max 23.0-27.0 0.50 max 0.25 max 2

Mechanical Properties of ASTM A268/ASME SA268 TP446-1/TP446-2, S44600

Tensile Strength , MPa Yield Strength, MPa Elongation, % Hardness, HB  
485 min 275 min 18 min 207 max 1
450 min 275 min 20 min 207 max 2