Pressure vessel plate
ASTM A516 Gr 70 — chemistry & properties
ASTM A516 Gr 70 (Pressure vessel plate, UNS K02700): chemical composition and mechanical properties. Plate for vessels, plate flanges and fabricated large-bore fittings.
Chemical composition (wt %)
| C | 0.27 – 0.31 |
| Mn | 0.85 – 1.2 |
| P | ≤ 0.025 |
| S | ≤ 0.025 |
| Si | 0.15 – 0.4 |
Mechanical properties
| Tensile strength, min | 485–620 MPa |
| Yield strength, min | 260 MPa |
| Elongation, min | 21 % |