ASTM A268/ASME SA268 Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
Chemical Composition of ASTM A268 TP439 Stainless Steel Pipes
| 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 TP439 Stainless Steel Pipes
| Tensile Strength, Mpa | Yield Strength, MPa | Elongation, % | Hardness, HB |
| 415 min | 205 min | 20 min | 190 max |