JIS steel grades — 2322 designations — Page 24
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 asserted identity — the same grade under this standard’s own designation. 17 of 50 rows differ and carry an “Indicative” mark.
Also known as
2322 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| SNB21-4 | — | — | 0.36–0.44 | — |
| SNB21-5 | — | — | 0.36–0.44 | — |
| SNB22-1 | — | — | 0.39–0.46 | — |
| SNB22-2 | — | — | 0.39–0.46 | — |
| SNB22-3 | — | — | 0.39–0.46 | — |
| SNB22-4 | — | — | 0.39–0.46 | — |
| SNB22-5 | — | — | 0.39–0.46 | — |
| SNB23-1 | — | — | 0.37–0.44 | — |
| SNB23-2 | — | — | 0.37–0.44 | — |
| SNB23-3 | — | — | 0.37–0.44 | — |
| SNB23-4 | — | — | 0.37–0.44 | — |
| SNB23-5 | — | — | 0.37–0.44 | — |
| SNB24-1 | — | — | 0.37–0.44 | — |
| SNB24-1-5 Indicative | 1.6565 | Quenched and tempered steels | 0.35–0.45 | 15 |
| SNB24-2 | — | — | 0.37–0.44 | — |
| SNB24-3 | — | — | 0.37–0.44 | — |
| SNB24-4 | — | — | 0.37–0.44 | — |
| SNB24-5 | — | — | 0.37–0.44 | — |
| SNB5 | — | — | ≤ 0.1 | — |
| SNB7 | — | — | 0.38–0.48 | — |
| SNC236 Indicative | 1.5710 | Quenched and tempered steels | 0.32–0.4 | 14 |
| SNC236 Indicative | 1.5711 | Others | 0.38–0.43 | 8 |
| SNC415 Indicative | 1.5732 | Case hardening steels | 0.1–0.17 | 13 |
| SNC415(H) Indicative | 1.5732 | Case hardening steels | 0.1–0.17 | 13 |
| SNC415H | — | — | 0.11–0.18 | — |
| SNC415HRCH | — | Cold extrusion steels | 0.11–0.18 | — |
| SNC415M | — | — | 0.12–0.18 | 1 |
| SNC415RCH | — | Cold extrusion steels | 0.12–0.18 | — |
| SNC631 | — | — | 0.27–0.35 | — |
| SNC631 Indicative | 1.5755 | Quenched and tempered steels | 0.27–0.35 | 9 |
| SNC631H | — | — | 0.26–0.35 | — |
| SNC631HRCH | — | Cold extrusion steels | 0.26–0.35 | — |
| SNC631M | — | — | 0.27–0.35 | 1 |
| SNC631RCH | — | Cold extrusion steels | 0.27–0.35 | — |
| SNC815 Indicative | 1.5752 | Case hardening steels | 0.14–0.2 | 15 |
| SNC815 Indicative | 1.5752 | Case hardening steels | 0.14–0.2 | 15 |
| SNC815 Indicative | 1.5732 | Case hardening steels | 0.1–0.17 | 13 |
| SNC815H Indicative | 1.5752 | Case hardening steels | 0.14–0.2 | 15 |
| SNC815H Indicative | 1.5752 | Case hardening steels | 0.14–0.2 | 15 |
| SNC815H Indicative | 1.5732 | Case hardening steels | 0.1–0.17 | 13 |
| SNC815HRCH | — | Cold extrusion steels | 0.11–0.18 | — |
| SNC815RCH | — | Cold extrusion steels | 0.12–0.18 | — |
| SNC836 | — | — | 0.32–0.4 | — |
| SNC836 Indicative | 1.5755 | Quenched and tempered steels | 0.27–0.35 | 9 |
| SNC836M | — | — | 0.32–0.4 | 1 |
| SNCM 439 STPT 38 Indicative | 1.6565 | Quenched and tempered steels | 0.35–0.45 | 15 |
| SNCM 8 Indicative | 1.6565 | Quenched and tempered steels | 0.35–0.45 | 15 |
| SNCM220 Indicative | 1.6523 | Case hardening steels | 0.17–0.23 | 18 |
| SNCM220H Indicative | 1.6523 | Case hardening steels | 0.17–0.23 | 18 |
| SNCM220HRCH | — | Cold extrusion steels | 0.17–0.23 | — |
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.