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 | TP439, S43035 |
Chemistry Composition of ASTM A268/ASME SA268 TP439, S43035
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Ni, % | Al, % | N, % | Ti, % |
| 0.07 max | 1.00 max | 0.040 max | 0.030 max | 1.00 max | 17.0-19.0 | 0.50 max | 0.15 max | 0.04 max | [0.20+4(C+N)]-1.10 |
Mechanical Properties of ASTM A268/ASME SA268 TP439, S43035
| Tensile Strength , MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 415 min | 205 min | 20 min | 190 max |