UNE steel grades — 760 designations — Page 9
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 |
|---|---|---|---|---|
| F.2631 -14CrMo4 5 | 1.7335 | Heat-resistant structural steels | 0.08–0.18 | 22 |
| F.2641 | 1.5622 | Low-temperature structural steels | ≤ 0.18 | 6 |
| F.2641 -15 Ni 6 | 1.5622 | Low-temperature structural steels | ≤ 0.18 | 6 |
| F.2645 | 1.5662 | Low-temperature structural steels | ≤ 0.1 | 8 |
| F.2645 | 1.5662 | Low-temperature structural steels | ≤ 0.1 | 6 |
| F.310.A | 1.4401 | Stainless steels | ≤ 0.07 | 20 |
| F.310.B | 1.4571 | Stainless steels | ≤ 0.08 | 18 |
| F.310.C | 1.4305 | Stainless steels | ≤ 0.1 | 17 |
| F.310.D | 1.4016 | Stainless steels | ≤ 0.08 | 18 |
| F.310.G | 1.4306 | Stainless steels | ≤ 0.03 | 18 |
| F.310.J | 1.4021 | Stainless steels | 0.16–0.25 | 18 |
| F.310.K | 1.4404 | Stainless steels | ≤ 0.03 | 25 |
| F.311 | 1.4724 | Heat resistant steels | ≤ 0.12 | 15 |
| F.3110 | 1.4000 | Stainless steels | ≤ 0.08 | 16 |
| F.3111 | 1.4002 | Stainless steels | ≤ 0.08 | 13 |
| F.3111-X6CrAI13 | 1.4002 | Stainless steels | ≤ 0.08 | 13 |
| F.3113 | 1.4016 | Stainless steels | ≤ 0.08 | 18 |
| F.3113 | 1.4742 | Heat resistant steels | ≤ 0.12 | 17 |
| F.3113-X8Cr17 | 1.4016 | Stainless steels | ≤ 0.08 | 18 |
| F.3114 | 1.4105 | Stainless steels | ≤ 0.08 | 10 |
| F.3114 | 1.4510 | Stainless steels | ≤ 0.05 | 14 |
| F.3115 | 1.4510 | Stainless steels | ≤ 0.05 | 14 |
| F.3116 | 1.4113 | Stainless steels | ≤ 0.08 | 10 |
| F.3117 | 1.4104 | Stainless steels | 0.1–0.17 | 13 |
| F.3117-X10CrS17 | 1.4104 | Stainless steels | 0.1–0.17 | 13 |
| F.3121 | 1.4512 | Stainless steels | ≤ 0.03 | 10 |
| F.3122 | 1.4511 | Stainless steels | ≤ 0.05 | 11 |
| F.3123 | 1.4521 | Stainless steels | ≤ 0.025 | 9 |
| F.313 | 1.4057 | Stainless steels | 0.12–0.22 | 17 |
| F.3152 | 1.4724 | Heat resistant steels | ≤ 0.12 | 15 |
| F.3153 | 1.4742 | Heat resistant steels | ≤ 0.12 | 17 |
| F.3153-X10CrAI 18 | 1.4742 | Heat resistant steels | ≤ 0.12 | 17 |
| F.3154 | 1.4762 | Heat resistant steels | ≤ 0.12 | 12 |
| F.3154-X10CrAI24 | 1.4762 | Heat resistant steels | ≤ 0.12 | 12 |
| F.320.C | 1.4873 | Valve steels | 0.4–0.5 | 11 |
| F.320B | 1.4747 | Others | 0.75–0.85 | 7 |
| F.3211 | 1.4873 | Valve steels | 0.4–0.5 | 11 |
| F.3211-X45CrNiSiW | 1.4873 | Valve steels | 0.4–0.5 | 11 |
| F.3214 | 1.4875 | Valve steels | 0.5–0.6 | 4 |
| F.3217 | 1.4871 | Valve steels | 0.48–0.58 | 17 |
| F.3217-X 53 CrMnln 21-09 | 1.4871 | Valve steels | 0.48–0.58 | 17 |
| F.322 | 1.4718 | Valve steels | 0.4–0.5 | 16 |
| F.322 | 1.4718 | Others | 0.4–0.5 | 16 |
| F.322 (s | 1.4718 | Valve steels | 0.4–0.5 | 16 |
| F.322 (s | 1.4718 | Others | 0.4–0.5 | 16 |
| F.3220 | 1.4718 | Valve steels | 0.4–0.5 | 16 |
| F.3220 | 1.4718 | Others | 0.4–0.5 | 16 |
| F.3220-X 4 ScrSi 09-03 | 1.4718 | Valve steels | 0.4–0.5 | 16 |
| F.3220-X 4 ScrSi 09-03 | 1.4718 | Others | 0.4–0.5 | 16 |
| F.3221 | 1.4731 | Valve steels | 0.35–0.45 | 12 |
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.






