UNI steel grades — 671 designations — Page 6
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 |
|---|---|---|---|---|
| C60 | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| C60E | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| C60R | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| C67 | 1.0612 | Others | 0.63–0.68 | 12 |
| C70 | 1.1231 | Spring steels | 0.65–0.73 | 18 |
| C70KU | 1.1520 | Unalloyed tool steels / carbon steels | 0.65–0.75 | 11 |
| C70KU | 1.1620 | Unalloyed tool steels / carbon steels | 0.65–0.74 | 14 |
| C80KU | 1.1525 | Unalloyed tool steels / carbon steels | 0.75–0.85 | 20 |
| C80KU | 1.1625 | Unalloyed tool steels / carbon steels | 0.75–0.85 | 15 |
| C85 | 1.1269 | Spring steels | 0.8–0.9 | 14 |
| C90 | 1.1269 | Spring steels | 0.8–0.9 | 14 |
| C90 | 1.1217 | Others | 0.85–0.95 | 6 |
| C90 | 1.2018 | Tool steels for cold work | 0.9–1 | 4 |
| C90KU | 1.1525 | Unalloyed tool steels / carbon steels | 0.75–0.85 | 20 |
| C90KU | 1.1830 | Unalloyed tool steels / carbon steels | 0.8–0.9 | 10 |
| CB 15 | 1.0234 | Unalloyed structural steels | 0.13–0.17 | 7 |
| CF10Pb20 | 1.0722 | Free cutting steels | 0.07–0.13 | 5 |
| CF10S20 | 1.0721 | Free cutting steels | 0.07–0.13 | 15 |
| CF35SMn10 | 1.0726 | Free cutting steels | 0.32–0.39 | 15 |
| CF35SMnPb | 1.0760 | Free cutting steels | 0.35–0.4 | 2 |
| CF35SMnPb10 | 1.0765 | Free cutting steels | 0.32–0.39 | 2 |
| CF44SMn28 | 1.0762 | Free cutting steels | 0.4–0.48 | 20 |
| CF9SMn28 | 1.0715 | Free cutting steels | ≤ 0.14 | 14 |
| CF9SMn36 | 1.0736 | Free cutting steels | ≤ 0.14 | 11 |
| CF9SMnPb28 | 1.0718 | Free cutting steels | ≤ 0.14 | 11 |
| CF9SMnPb36 | 1.0737 | Free cutting steels | ≤ 0.14 | 8 |
| DC01 | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| DC01 | 1.0322 | Unalloyed structural steels | ≤ 0.12 | 17 |
| DC03 | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| DC04 | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| E 335 Fe 590 | 1.0060 | Unalloyed structural steels | — | 21 |
| E295 | 1.0050 | Unalloyed structural steels | — | 23 |
| E295 | 1.0050 | Unalloyed structural steels | — | 23 |
| E335 | 1.0580 | Unalloyed structural steels | ≤ 0.22 | 10 |
| E335 | 1.0060 | Unalloyed structural steels | — | 21 |
| E335 | 1.0060 | Unalloyed structural steels | — | 21 |
| E4 | 1.1274 | Spring steels | 0.95–1.05 | 13 |
| EVM11 | 1.4718 | Others | 0.4–0.5 | 16 |
| FC35 | EN-JL1060 | Others | — | 21 |
| Fe320 | 1.0035 | Unalloyed structural steels | — | 22 |
| Fe330 | 1.0028 | Unalloyed structural steels | ≤ 0.15 | 18 |
| Fe360 | 1.0308 | Unalloyed structural steels | ≤ 0.17 | 10 |
| Fe360 | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| Fe360-1KG | 1.0345 | Heat-resistant structural steels | ≤ 0.16 | 18 |
| Fe360-1KG | 1.8945 | Weathering steels | ≤ 0.12 | 16 |
| Fe360-1KW | 1.0345 | Heat-resistant structural steels | ≤ 0.16 | 18 |
| Fe360-2KG | 1.8945 | Weathering steels | ≤ 0.12 | 16 |
| Fe360-2KW | 1.0112 | Unalloyed structural steels | ≤ 0.16 | 5 |
| FE360B | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| Fe360B | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
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.






