JIS steel grades — 2322 designations — Page 5
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. 4 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 |
|---|---|---|---|---|
| S12C | 1.0214 | Unalloyed structural steels | 0.08–0.12 | 4 |
| S12C | 1.0311 | Unalloyed structural steels | 0.1–0.15 | 4 |
| S12C | 1.1124 | Others | 0.1–0.14 | 4 |
| S12C | 1.1130 | Others | 0.1–0.16 | 4 |
| S12C | 1.9311 | Others | 0.1–0.15 | 4 |
| S12C | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| S15 | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| S15C | 1.1141 | Case hardening steels | 0.12–0.18 | 20 |
| S15C | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| S15C | 1.1132 | Cold extrusion steels | 0.13–0.17 | 5 |
| S15CK | 1.1141 | Case hardening steels | 0.12–0.18 | 20 |
| S15CK | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| S15CK | 1.1132 | Cold extrusion steels | 0.13–0.17 | 5 |
| S17C | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| S17C | 1.0416 | Others | 0.15–0.2 | 17 |
| S17C | 1.1141 | Case hardening steels | 0.12–0.18 | 20 |
| S17C | 1.9413 | Others | 0.15–0.2 | 4 |
| S20C | 1.1151 | Quenched and tempered steels | 0.17–0.24 | 15 |
| S20C | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| S20C | 1.0254 | Unalloyed structural steels | ≤ 0.16 | 6 |
| S20CK This grade’s own name | — | — | 0.18–0.23 | — |
| S20CK | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| S22C | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| S22C | 1.1151 | Quenched and tempered steels | 0.17–0.24 | 15 |
| S22C | 1.1152 | Cold extrusion steels | 0.18–0.22 | 4 |
| S25C | 1.1158 | Quenched and tempered steels | 0.22–0.29 | 12 |
| S25C | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| S25C | 1.0415 | Quenched and tempered steels | 0.24–0.29 | 6 |
| S25C | 1.1139 | Quenched and tempered steels | 0.24–0.29 | 6 |
| S25C | 1.1163 | Quenched and tempered steels | 0.22–0.29 | 6 |
| S25C | 1.9415 | Quenched and tempered steels | 0.22–0.28 | 6 |
| S28C | 1.9416 | Others | 0.25–0.31 | 4 |
| S28C | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| S28C | 1.0528 | Quenched and tempered steels | 0.27–0.34 | 14 |
| S30C | 1.0528 | Quenched and tempered steels | 0.27–0.34 | 14 |
| S30C | 1.0530 | Others | 0.3–0.35 | 7 |
| S30C | 1.1143 | Quenched and tempered steels | 0.3–0.34 | 7 |
| S30C | 1.1178 | Quenched and tempered steels | 0.27–0.34 | 13 |
| S30C | 1.1179 | Quenched and tempered steels | 0.27–0.34 | 8 |
| S30C | 1.9416 | Quenched and tempered steels | 0.28–0.34 | 7 |
| S30CM This grade’s own name | — | — | 0.27–0.33 | 1 |
| S33C This grade’s own name | — | — | 0.3–0.36 | — |
| S33C | 1.0528 | Quenched and tempered steels | 0.27–0.34 | 14 |
| S35 | 1.0501 | Quenched and tempered steels | 0.32–0.39 | 23 |
| S35C | 1.1181 | Quenched and tempered steels | 0.32–0.39 | 20 |
| S35C | 1.1183 | Steels for surface hardening | 0.33–0.39 | 7 |
| S35C | 1.0501 | Quenched and tempered steels | 0.32–0.39 | 23 |
| S35CM This grade’s own name | — | — | 0.32–0.38 | 1 |
| S38C | 1.1150 | Others | 0.36–0.4 | 5 |
| S38C | 1.1181 | Quenched and tempered steels | 0.32–0.39 | 20 |
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.