GOST steel grades — 3544 designations — Page 52
Every grade designated under GOST, 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. Unless marked, every name here is an indicative cross-reference, not an asserted identity — the grades are close, not interchangeable. 22 of 50 rows differ and carry a “This grade’s own name” mark.
Also known as
3544 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| R18K5F2 This grade’s own name | — | — | — | 1 |
| R18K5F2 | 1.3255 | High-speed steels | 0.75–0.83 | 14 |
| R2AM9K | 1.3247 | High-speed steels | 1.05–1.15 | 14 |
| R2M10K8 | 1.3247 | High-speed steels | 1.05–1.15 | 14 |
| R2M5 | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| R2АM9K5 | 1.3247 | High-speed steels | 1.05–1.15 | 14 |
| R6AM5 | 1.0612 | Others | 0.63–0.68 | 12 |
| R6AM5F3 This grade’s own name | — | — | 0.95–1.05 | — |
| R6M3 This grade’s own name | — | — | 0.85–0.95 | — |
| R6M5 | 1.3339 | High-speed steels | 0.8–0.88 | 16 |
| R6M5 | 1.3343 | High-speed steels | 0.86–0.94 | 19 |
| R6M5F3 | 1.3344 | High-speed steels | 1.15–1.25 | 8 |
| R6M5F3-MP | 1.3344 | High-speed steels | 1.15–1.25 | 8 |
| R6M5K5 | 1.3243 | High-speed steels | 0.87–0.95 | 19 |
| R6M5K5-MP | 1.3243 | High-speed steels | 0.87–0.95 | 19 |
| R7M2F6-MP | — | — | 3.2–3.6 | — |
| R9 This grade’s own name | — | — | 0.85–0.95 | — |
| R9F5 This grade’s own name | — | — | 1.4–1.5 | — |
| R9K10 This grade’s own name | — | — | 0.9–1 | — |
| R9K5 This grade’s own name | — | — | 0.9–1 | — |
| R9M4K8 | 1.3207 | High-speed steels | 1.2–1.35 | 14 |
| R9M4K8-MP | 1.3207 | High-speed steels | 1.2–1.35 | 14 |
| S-Ni22 This grade’s own name | — | — | ≤ 3 | — |
| S-Ni35 This grade’s own name | — | — | ≤ 2.4 | — |
| S-NiCr20-2 This grade’s own name | — | — | ≤ 3 | — |
| S-NiCr20-3 This grade’s own name | — | — | ≤ 3 | — |
| S-NiCr30-1 This grade’s own name | — | — | ≤ 2.6 | — |
| S-NiCr30-3 This grade’s own name | — | — | ≤ 2.6 | — |
| S-NiCr35-3 This grade’s own name | — | — | ≤ 2.4 | — |
| S-NiMn13-7 This grade’s own name | — | — | ≤ 3 | — |
| S-NiMn23-4 This grade’s own name | — | — | ≤ 2.6 | — |
| S-NiSiCr20-5-2 This grade’s own name | — | — | ≤ 3 | — |
| S-NiSiCr30-5-5 This grade’s own name | — | — | ≤ 2.6 | — |
| S235 | 1.0035 | Unalloyed structural steels | — | 22 |
| S245 | 1.0038 | Unalloyed structural steels | ≤ 0.17 | 26 |
| S245 | 1.0116 | Unalloyed structural steels | ≤ 0.17 | 12 |
| S255 | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| S255 | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 19 |
| S275 This grade’s own name | — | — | ≤ 0.22 | — |
| S285 | 1.0050 | Unalloyed structural steels | — | 23 |
| S285 | 1.0050 | Unalloyed structural steels | — | 23 |
| S2M2L | 1.4408 | Cast stainless steels | ≤ 0.07 | 7 |
| S345 | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 22 |
| S345 | 1.0570 | Unalloyed structural steels | ≤ 0.2 | 20 |
| S345 | 1.0060 | Unalloyed structural steels | — | 21 |
| S345 | 1.0060 | Unalloyed structural steels | — | 21 |
| S345D This grade’s own name | — | — | ≤ 0.15 | — |
| S345K This grade’s own name | — | — | ≤ 0.12 | — |
| S345T This grade’s own name | — | — | ≤ 0.22 | — |
| S375 | 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.






