UNI steel grades — 671 designations — Page 2
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 |
|---|---|---|---|---|
| 1CD35 | 1.0501 | Quenched and tempered steels | 0.32–0.39 | 23 |
| 20Mn7 | 1.1133 | Quenched and tempered steels | 0.17–0.23 | 20 |
| 20MnCr5 | 1.7147 | Case hardening steels | 0.17–0.22 | 15 |
| 20MnCr5 | 1.7131 | Case hardening steels | 0.14–0.19 | 24 |
| 20NiCrMo2 | 1.6523 | Case hardening steels | 0.17–0.23 | 18 |
| 20NiCrMoS2 | 1.6526 | Case hardening steels | 0.17–0.23 | 9 |
| 215CrW12-1KU | 1.2436 | Tool steels for cold work | 2–2.3 | 16 |
| 24CrMoV5-5 | 1.7733 | Heat-resistant structural steels | 0.2–0.28 | 15 |
| 25CrMo4 | 1.7213 | Others | 0.22–0.29 | 5 |
| 25CrMo4 | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 25CrMo4 | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 25CrMo4KB | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 25CrMo4KB | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 28Mn6 | 1.1165 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 28Mn6 | 1.1170 | Quenched and tempered steels | 0.25–0.32 | 16 |
| 2C10 | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| 2C10 | 1.1121 | Case hardening steels | 0.07–0.13 | 22 |
| 2C15 | 1.1121 | Case hardening steels | 0.07–0.13 | 22 |
| 30CrMo4 | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 30CrMo4 | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 30CrMoCoV123012KU | 1.2885 | Tool steels for hot work | 0.28–0.35 | 6 |
| 30CrMoV12-27KU | 1.2365 | Tool steels for hot work | 0.28–0.35 | 18 |
| 316LM1 | 1.4404 | Stainless steels | ≤ 0.03 | 25 |
| 31CrMo12 | 1.8515 | Nitriding steels | 0.28–0.35 | 8 |
| 329S | 1.4501 | Stainless steels | ≤ 0.03 | 8 |
| 329S | 1.4410 | Stainless steels | ≤ 0.03 | 9 |
| 32CrMo12 | 1.7361 | Quenched and tempered steels | 0.28–0.35 | 7 |
| 34Cr4 | 1.7033 | Quenched and tempered steels | 0.3–0.37 | 18 |
| 34Cr4 | 1.7030 | Quenched and tempered steels | 0.24–0.31 | 12 |
| 34Cr4KB | 1.7033 | Quenched and tempered steels | 0.3–0.37 | 18 |
| 34CrMo4 | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 34CrMo4 | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 34CrMo4KB | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 34CrNiMo6 | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| 35CrMo4 | 1.7226 | Others | 0.3–0.37 | 9 |
| 35CrMo4 | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 35CrMo4 | 1.7218 | Quenched and tempered steels | 0.22–0.29 | 25 |
| 35CrMo4F | 1.7220 | Quenched and tempered steels | 0.3–0.37 | 24 |
| 35CrNiMo6 | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| 35NiCrMo15 | 1.6773 | Quenched and tempered steels | 0.32–0.39 | 5 |
| 35NiCrMo15 | 1.6747 | Quenched and tempered steels | 0.26–0.33 | 6 |
| 35NiCrMo6 | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| 35NiCrMo6KB | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| 35NiCrMo6KB | 1.6511 | Quenched and tempered steels | 0.32–0.4 | 18 |
| 36CrMn4 | 1.7034 | Quenched and tempered steels | 0.34–0.41 | 23 |
| 36CrMn5 | 1.7034 | Quenched and tempered steels | 0.34–0.41 | 23 |
| 36CrMoV12 | 1.8523 | Nitriding steels | 0.35–0.45 | 3 |
| 36NiCrMo4 | 1.6511 | Quenched and tempered steels | 0.32–0.4 | 18 |
| 37Cr4 | 1.7034 | Quenched and tempered steels | 0.34–0.41 | 23 |
| 38Cr2 | 1.7003 | Quenched and tempered steels | 0.35–0.42 | 6 |
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.