UNI steel grades — 671 designations — Page 4
Every grade designated under UNI, 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
671 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| 60SiCr8 | 1.7102 | Spring steels | 0.51–0.59 | 14 |
| 60SiCr8 | 1.5092 | Others | 0.55–0.66 | 8 |
| 60SiCr8 | 1.7108 | Spring steels | 0.57–0.65 | 11 |
| 60WCrV8KU | 1.2550 | Tool steels for cold work | 0.55–0.65 | 15 |
| 80CrV2 | 1.2235 | Tool steels for cold work | 0.75–0.85 | 13 |
| 90MnCrV8KU | 1.2842 | Tool steels for cold work | 0.85–0.95 | 14 |
| 90MnVCr8KU | 1.2842 | Tool steels for cold work | 0.85–0.95 | 14 |
| 95MnWVCr5KU | 1.2825 | Tool steels for cold work | 0.9–1 | 13 |
| A16CrMo25-5KG | 1.7362 | Hydrogen resistant steels | 0.1–0.15 | 13 |
| A16CrMo25-5KW | 1.7362 | Hydrogen resistant steels | 0.1–0.15 | 13 |
| A18CrMo4-5KW | 1.7262 | Case hardening steels | 0.13–0.17 | 18 |
| AR 309 | 1.4829 | Others | ≤ 0.14 | 8 |
| B18CrMo4-5KG | 1.7262 | Case hardening steels | 0.13–0.17 | 18 |
| B35-10 | EN-JM1130 | Others | — | 10 |
| C10 | 1.1207 | Case hardening steels | 0.07–0.13 | 5 |
| C10 | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| C10 | 1.1121 | Case hardening steels | 0.07–0.13 | 22 |
| C100 | 1.1274 | Spring steels | 0.95–1.05 | 13 |
| C100KU | 1.1535 | Unalloyed tool steels / carbon steels | 0.85–0.95 | 14 |
| C100KU | 1.1545 | Unalloyed tool steels / carbon steels | 1–1.1 | 19 |
| C100KU | 1.1645 | Unalloyed tool steels / carbon steels | 1–1.1 | 18 |
| C120KU | 1.1555 | Unalloyed tool steels / carbon steels | 1.15–1.25 | 16 |
| C120KU | 1.1545 | Unalloyed tool steels / carbon steels | 1–1.1 | 19 |
| C120KU | 1.1563 | Unalloyed tool steels / carbon steels | 1.2–1.35 | 13 |
| C14 | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| C140KU | 1.1563 | Unalloyed tool steels / carbon steels | 1.2–1.35 | 13 |
| C15 | 1.1141 | Case hardening steels | 0.12–0.18 | 20 |
| C15 | 1.1140 | Case hardening steels | 0.12–0.18 | 7 |
| C15 | 1.1121 | Case hardening steels | 0.07–0.13 | 22 |
| C15 | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| C16 | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| C16 | 1.1141 | Case hardening steels | 0.12–0.18 | 20 |
| C165CrMoV12KU | 1.2379 | Tool steels for cold work | 1.45–1.6 | 20 |
| C18 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| C18 | 1.0436 | Fine-grain structural steels | 0.15–0.2 | 14 |
| C20 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| C21 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| C22 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| C22E | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| C22E | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| C22R | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| C22R | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| C25 | 1.1151 | Quenched and tempered steels | 0.17–0.24 | 15 |
| C25 | 1.1149 | Quenched and tempered steels | 0.17–0.24 | 7 |
| C25 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| C25 | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| C25E | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| C25E | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| C25R | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| C28Mn | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 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.