Stainless pipe
ASTM A312 TP321 — chemistry & properties
ASTM A312 TP321 (Stainless pipe, UNS S32100): chemical composition and mechanical properties. Stabilised stainless piping for intermittent high-temperature service
Chemical composition (wt %)
| C | ≤ 0.08 |
| Mn | ≤ 2 |
| P | ≤ 0.045 |
| S | ≤ 0.03 |
| Si | ≤ 1 |
| Cr | 17 – 19 |
| Ni | 9 – 12 |
| Ti | 5×(C+N) – 0.70 |
Mechanical properties
| Tensile strength, min | 515 MPa |
| Yield strength, min | 205 MPa |
| Elongation, min | 35 % |