JIS steel grades — 2322 designations — Page 31
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. 18 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 |
|---|---|---|---|---|
| STW400 This grade’s own name | — | Unalloyed structural steels | ≤ 0.25 | — |
| SUH 309 | 1.4828 | Heat resistant steels | ≤ 0.2 | 20 |
| SUH 309 | 1.4833 | Heat resistant steels | ≤ 0.15 | 15 |
| SUH 309TB | 1.4828 | Heat resistant steels | ≤ 0.2 | 20 |
| SUH 309TP | 1.4828 | Heat resistant steels | ≤ 0.2 | 20 |
| SUH 31 | 1.4873 | Valve steels | 0.4–0.5 | 11 |
| SUH 31 TK | 1.4873 | Valve steels | 0.4–0.5 | 11 |
| SUH 31 TP | 1.4873 | Valve steels | 0.4–0.5 | 11 |
| SUH 310 | 1.4843 | Resistance heating alloys | ≤ 0.2 | 9 |
| SUH 409 | 1.4512 | Stainless steels | ≤ 0.03 | 10 |
| SUH 409 | 1.4720 | Heat resistant steels | ≤ 0.08 | 5 |
| SUH 409L | 1.4512 | Stainless steels | ≤ 0.03 | 10 |
| SUH 446 | 1.4749 | Heat resistant steels | 0.15–0.2 | 10 |
| SUH1 | 1.4718 | Valve steels | 0.4–0.5 | 16 |
| SUH1 | 1.4718 | Others | 0.4–0.5 | 16 |
| SUH11 This grade’s own name | — | Heat resistant steels | 0.45–0.55 | — |
| SUH2 | 1.4718 | Valve steels | 0.4–0.5 | 16 |
| SUH2 | 1.4718 | Others | 0.4–0.5 | 16 |
| SUH21 This grade’s own name | 1.4742 | Heat resistant steels | ≤ 0.12 | 17 |
| SUH21 This grade’s own name | — | Heat resistant steels | ≤ 0.1 | — |
| SUH3 This grade’s own name | 1.4731 | Valve steels | 0.35–0.45 | 12 |
| SUH3 | 1.3343 | High-speed steels | 0.86–0.94 | 19 |
| SUH31 This grade’s own name | — | Heat resistant steels | 0.35–0.45 | — |
| SUH310 | 1.4845 | Heat resistant steels | ≤ 0.1 | 21 |
| SUH310 | 1.4842 | Others | ≤ 0.14 | 14 |
| SUH310 | 1.4841 | Heat resistant steels | ≤ 0.2 | 17 |
| SUH330 This grade’s own name | — | Stainless steels | ≤ 0.15 | — |
| SUH330 | 1.4864 | Heat resistant steels | ≤ 0.15 | 14 |
| SUH35 | 1.4871 | Valve steels | 0.48–0.58 | 17 |
| SUH36 This grade’s own name | — | Heat resistant steels | 0.48–0.58 | — |
| SUH36 | 1.4871 | Valve steels | 0.48–0.58 | 17 |
| SUH37 This grade’s own name | — | Heat resistant steels | 0.15–0.25 | — |
| SUH38 This grade’s own name | — | Heat resistant steels | 0.25–0.35 | — |
| SUH4 | 1.4747 | Others | 0.75–0.85 | 7 |
| SUH409L This grade’s own name | — | Heat resistant steels | ≤ 0.03 | — |
| SUH446 | 1.4762 | Heat resistant steels | ≤ 0.12 | 12 |
| SUH600 This grade’s own name | — | Heat resistant steels | 0.15–0.2 | — |
| SUH616 This grade’s own name | — | Heat resistant steels | 0.2–0.25 | — |
| SUH616 | 1.4929 | High-temperature steels | 0.2–0.25 | 5 |
| SUH616 | 1.4935 | High-temperature steels | 0.17–0.24 | 5 |
| SUH660 This grade’s own name | — | Stainless steels | ≤ 0.08 | — |
| SUH661 This grade’s own name | — | Heat resistant steels | 0.08–0.16 | — |
| SUH661 | 1.4871 | Valve steels | 0.48–0.58 | 17 |
| SUJ2 | 1.2067 | Tool steels for cold work | 0.95–1.1 | 21 |
| SUJ2 | 1.3505 | Bearing steels | 0.93–1.05 | 22 |
| SUJ3 This grade’s own name | — | Bearing steels | 0.95–1.1 | — |
| SUJ3 | 1.3520 | Bearing steels | 0.93–1.05 | 16 |
| SUJ4 This grade’s own name | — | Bearing steels | 0.95–1.1 | — |
| SUJ4 | 1.3505 | Bearing steels | 0.93–1.05 | 22 |
| SUJ5 This grade’s own name | — | Bearing steels | 0.95–1.1 | — |
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.