UNE steel grades — 760 designations — Page 3
Every grade designated under UNE, with the material number it maps to, what kind of steel it is, its carbon window and how many other standards carry it. Open a grade for its full composition, properties and its designations in other standards. Every name on this page is an indicative cross-reference, not an asserted identity: the grades are close, not interchangeable. Check the composition before you substitute.
Also known as
760 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| 55Cr3 | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 55Cr3 | 1.7176 | Spring steels | 0.52–0.59 | 18 |
| 55Si7 | 1.5026 | Spring steels | 0.52–0.6 | 20 |
| 56Si7 | 1.5026 | Spring steels | 0.52–0.6 | 20 |
| 6-5-2 | 1.3343 | High-speed steels | 0.86–0.94 | 19 |
| 6-5-2-5 | 1.3246 | High-speed steels | 1.05–1.15 | 5 |
| 6-5-2-5 | 1.3243 | High-speed steels | 0.87–0.95 | 19 |
| 6-5-3 | 1.3344 | High-speed steels | 1.15–1.25 | 8 |
| 60Si7 | 1.0961 | High-strength multi-phase steels | ≤ 0.18 | 14 |
| 60SiCr8 | 1.0961 | High-strength multi-phase steels | ≤ 0.18 | 14 |
| 7-4-2-5 | 1.3247 | High-speed steels | 1.05–1.15 | 14 |
| 80CrSiNi20-02 | 1.4747 | Others | 0.75–0.85 | 7 |
| 95MnCrW5 | 1.2825 | Tool steels for cold work | 0.9–1 | 13 |
| A 37 RC l | 1.0345 | Heat-resistant structural steels | ≤ 0.16 | 18 |
| A 47 RB II | 1.0473 | Heat-resistant structural steels | 0.1–0.22 | 10 |
| A 47 RC1 | 1.0481 | Heat-resistant structural steels | 0.08–0.2 | 17 |
| A-128 | 1.6510 | Others | 0.35–0.43 | 7 |
| A-150.E | 1.5920 | Case hardening steels | 0.15–0.2 | 6 |
| A-152 | 1.5637 | Low-temperature structural steels | ≤ 0.15 | 11 |
| A-152 | 1.5639 | Low-temperature structural steels | 0.12–0.19 | 9 |
| A-1550 | 1.7243 | Case hardening steels | 0.15–0.21 | 12 |
| A-1550 | 1.3566 | Others | 0.12–0.18 | 8 |
| A-5117 | 1.1274 | Spring steels | 0.95–1.05 | 13 |
| A310-0 | 1.0035 | Unalloyed structural steels | — | 22 |
| A360 | 1.0116 | Unalloyed structural steels | ≤ 0.17 | 12 |
| A360 C | 1.0116 | Unalloyed structural steels | ≤ 0.17 | 12 |
| A37RCI | 1.0345 | Heat-resistant structural steels | ≤ 0.16 | 18 |
| A42 | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| A42 RC 1 | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| A42RCI | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| A42RCI | 1.0426 | Aging resistant steels | 0.08–0.2 | 17 |
| A42RCII | 1.0426 | Aging resistant steels | 0.08–0.2 | 17 |
| A42RCII | 1.0425 | Heat-resistant structural steels | ≤ 0.2 | 20 |
| A430B | 1.0044 | Unalloyed structural steels | ≤ 0.21 | 26 |
| A47RCI | 1.0481 | Heat-resistant structural steels | 0.08–0.2 | 17 |
| A490 | 1.0050 | Unalloyed structural steels | — | 23 |
| A490 | 1.0050 | Unalloyed structural steels | — | 23 |
| A490-2 | 1.0050 | Unalloyed structural steels | — | 23 |
| A490-2 | 1.0050 | Unalloyed structural steels | — | 23 |
| A510C | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 22 |
| A510C | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 20 |
| A52RCI | 1.0473 | Heat-resistant structural steels | 0.1–0.22 | 10 |
| A590 | 1.0060 | Unalloyed structural steels | — | 21 |
| A590 | 1.0060 | Unalloyed structural steels | — | 21 |
| A590-2 | 1.0060 | Unalloyed structural steels | — | 21 |
| A590-2 | 1.0060 | Unalloyed structural steels | — | 21 |
| A690 | 1.0070 | Unalloyed structural steels | — | 16 |
| A690 | 1.0070 | Unalloyed structural steels | — | 16 |
| A690-2 | 1.0070 | Unalloyed structural steels | — | 16 |
| A690-2 | 1.0070 | Unalloyed structural steels | — | 16 |
This grade’s own name — recorded in our sources as this grade’s own designation under that standard.
Indicative — taken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.
Withdrawn — designation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.