JIS steel grades — 2322 designations — Page 19
Every grade designated under JIS, 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. 13 of 50 rows differ and carry a “This grade’s own name” mark.
Also known as
2322 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| SK85 | 1.1525 | Unalloyed tool steels / carbon steels | 0.75–0.85 | 20 |
| SK85C-CSP This grade’s own name | — | Spring steels | 0.8–0.9 | — |
| SK85M This grade’s own name | — | — | 0.8–0.9 | — |
| SK90 This grade’s own name | — | Unalloyed tool steels / carbon steels | 0.85–0.95 | — |
| SK95 This grade’s own name | — | Unalloyed tool steels / carbon steels | 0.9–1 | — |
| SK95 | 1.1217 | Others | 0.85–0.95 | 6 |
| SK95 | 1.2018 | Tool steels for cold work | 0.9–1 | 4 |
| SK95-CSP | 1.1274 | Spring steels | 0.95–1.05 | 13 |
| SK95C-CSP This grade’s own name | — | Spring steels | 0.9–1 | — |
| SK95M This grade’s own name | — | — | 0.9–1 | — |
| SKC11 | 1.2235 | Tool steels for cold work | 0.75–0.85 | 13 |
| SKC3 | 1.1625 | Unalloyed tool steels / carbon steels | 0.75–0.85 | 15 |
| SKD-2 | 1.2346 | Others | 0.36–0.42 | 4 |
| SKD1 | 1.2080 | Tool steels for cold work | 1.9–2.2 | 18 |
| SKD1 | 1.2060 | Tool steels for cold work | 1–1.1 | 15 |
| SKD10 This grade’s own name | — | — | 1.45–1.6 | — |
| SKD11 | 1.2379 | Tool steels for cold work | 1.45–1.6 | 20 |
| SKD11 | 1.2601 | Tool steels for cold work | 1.55–1.75 | 15 |
| SKD12 | 1.2363 | Tool steels for cold work | 0.95–1.05 | 16 |
| SKD2 | 1.2436 | Tool steels for cold work | 2–2.3 | 16 |
| SKD4 This grade’s own name | — | — | 0.25–0.35 | — |
| SKD4 | 1.2567 | Tool steels for hot work | 0.25–0.35 | 9 |
| SKD5 | 1.2581 | Tool steels for hot work | 0.25–0.35 | 18 |
| SKD6 | 1.2343 | Tool steels for hot work | 0.33–0.41 | 20 |
| SKD61 | 1.2344 | Tool steels for hot work | 0.35–0.42 | 20 |
| SKD62 | 1.2605 | Tool steels for hot work | 0.32–0.4 | 5 |
| SKD62 | 1.2606 | Tool steels for hot work | 0.32–0.4 | 8 |
| SKD62 | 1.2365 | Tool steels for hot work | 0.28–0.35 | 18 |
| SKD62 | 1.2567 | Tool steels for hot work | 0.25–0.35 | 9 |
| SKD7 | 1.2365 | Tool steels for hot work | 0.28–0.35 | 18 |
| SKD8 | 1.2661 | Others | 0.35–0.45 | 3 |
| SKH | 1.3355 | High-speed steels | 0.73–0.83 | 22 |
| SKH10 | 1.3202 | High-speed steels | 1.3–1.45 | 12 |
| SKH2 | 1.3355 | High-speed steels | 0.73–0.83 | 22 |
| SKH3 | 1.3255 | High-speed steels | 0.75–0.83 | 14 |
| SKH40 This grade’s own name | — | High-speed steels | 1.23–1.33 | 1 |
| SKH50 This grade’s own name | — | High-speed steels | 0.77–0.87 | 1 |
| SKH51 | 1.3339 | High-speed steels | 0.8–0.88 | 16 |
| SKH51 | 1.3343 | High-speed steels | 0.86–0.94 | 19 |
| SKH52 | 1.3350 | High-speed steels | 1–1.1 | 2 |
| SKH52 | 1.3344 | High-speed steels | 1.15–1.25 | 8 |
| SKH53 This grade’s own name | — | High-speed steels | 1.15–1.25 | 1 |
| SKH53 | 1.3344 | High-speed steels | 1.15–1.25 | 8 |
| SKH53 | — | — | 1.25–1.32 | 4 |
| SKH54 | 1.3351 | High-speed steels | 1.25–1.4 | 4 |
| SKH55 | 1.3243 | High-speed steels | 0.87–0.95 | 19 |
| SKH56 This grade’s own name | — | High-speed steels | 0.85–0.95 | 1 |
| SKH57 This grade’s own name | — | High-speed steels | 1.2–1.35 | 1 |
| SKH57 | 1.3207 | High-speed steels | 1.2–1.35 | 14 |
| SKH58 | 1.3348 | High-speed steels | 0.95–1.05 | 8 |
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.