A516 Grade 70
USApproximate matchASTM/ASME · ASTM A516/A516M (ASME SA-516)
Family of fine-grain, killed carbon steel plates used to fabricate pressure vessels, boilers, separators and petrochemical equipment operating at moderate temperature (generally -30°C to roughly 400-500°C depending on grade). It's the most common plate family in industrial boilermaking, offering an excellent strength/weldability balance.
| Grade | Region | Standard | Re (MPa) | Rm (MPa) | Delta |
|---|---|---|---|---|---|
| A516 Grade 70 | US | ASTM A516/A516M (ASME SA-516) | 260 | 485–620 | reference |
| P265GH (n° matière 1.0425) | EU | EN 10028-2 | 265 | 410–530 | +2% |
| SGV480 | JP | JIS G3118 | 265 | 480–610 | +2% |
| SGV480 | KR | KS D3540 | 265 | 480–590 | +2% |
| Neighboring grades — different strength | |||||
| P355GH (n° matière 1.0473) | EU | EN 10028-2 | 355 | 470–650 | +37% |
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | Cu | Nb | V | Ti | N | Al |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A516 Grade 70 | ≤0.28 | 0.85–1.2 | 0.15–0.4 | ≤0.035 | ≤0.035 | — | — | — | — | — | — | — | — | — |
| P265GH (n° matière 1.0425) | ≤0.2 | 0.8–1.4 | ≤0.4 | ≤0.025 | ≤0.015 | ≤0.3 | ≤0.3 | ≤0.08 | ≤0.3 | — | — | — | — | — |
| SGV480 | ≤0.27 | 0.85–1.2 | 0.15–0.3 | ≤0.035 | ≤0.035 | — | — | — | — | — | — | — | — | — |
| SGV480 | ≤0.27 | 0.85–1.2 | 0.15–0.4 | ≤0.03 | ≤0.03 | — | — | — | — | — | — | — | — | — |
| P355GH (n° matière 1.0473) | 0.1–0.22 | 1.1–1.7 | ≤0.6 | ≤0.025 | ≤0.015 | ≤0.3 | ≤0.3 | ≤0.08 | ≤0.3 | ≤0.02 | ≤0.02 | ≤0.03 | ≤0.012 | ≥0.02 |
Note: The family's historical reference grade; the maximum allowable carbon actually varies with plate thickness (up to roughly 0.30-0.31% for heavy gauges per ASTM A20/A516). Steelmaker SSAB offers a tighter commercial composition (P max 0.020%, S max 0.010%) than the ASTM minimum. The 21% minimum elongation is measured on a 50 mm (2 in) gauge length; the standard also allows 17% on a 200 mm (8 in) gauge length. Can be supplied normalized with an optional Charpy test (Supplementary Requirement S5) for low-temperature use down to roughly -29°C to -46°C depending on the purchaser's requirements.
Values compiled from public sources for guidance only — always verify against the official standard before use in design or fabrication.