JIS steel grades — 2322 designations — Page 25
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. 24 of 50 rows differ and carry an “Indicative” mark.
Also known as
2322 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| SNCM220M | — | — | 0.17–0.23 | 1 |
| SNCM220RCH | — | Cold extrusion steels | 0.17–0.23 | — |
| SNCM240 Indicative | 1.6546 | Quenched and tempered steels | 0.37–0.44 | 14 |
| SNCM240 | — | — | — | 2 |
| SNCM240RCH | — | Cold extrusion steels | 0.38–0.43 | — |
| SNCM415 | — | — | 0.12–0.18 | — |
| SNCM415 Indicative | 1.6587 | Case hardening steels | 0.15–0.21 | 15 |
| SNCM415M | — | — | 0.12–0.18 | 1 |
| SNCM420 Indicative | 1.5919 | Case hardening steels | 0.12–0.18 | 11 |
| SNCM420 Indicative | 1.6587 | Case hardening steels | 0.15–0.21 | 15 |
| SNCM420H Indicative | 1.5919 | Case hardening steels | 0.12–0.18 | 11 |
| SNCM420H Indicative | 1.6587 | Case hardening steels | 0.15–0.21 | 15 |
| SNCM420HRCH | — | Cold extrusion steels | 0.17–0.23 | — |
| SNCM420RCH | — | Cold extrusion steels | 0.17–0.23 | — |
| SNCM431 | — | — | 0.27–0.35 | — |
| SNCM431 Indicative | 1.6580 | Quenched and tempered steels | 0.26–0.34 | 15 |
| SNCM431 Indicative | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| SNCM439 Indicative | 1.6546 | Quenched and tempered steels | 0.37–0.44 | 14 |
| SNCM439 Indicative | 1.6511 | Quenched and tempered steels | 0.32–0.4 | 18 |
| SNCM439 Indicative | 1.6565 | Quenched and tempered steels | 0.35–0.45 | 15 |
| SNCM439 Indicative | 1.6580 | Quenched and tempered steels | 0.26–0.34 | 15 |
| SNCM439 Indicative | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| SNCM439RCH | — | Cold extrusion steels | 0.36–0.43 | — |
| SNCM447 | — | — | 0.44–0.5 | — |
| SNCM447 Indicative | 1.6582 | Quenched and tempered steels | 0.3–0.38 | 25 |
| SNCM447 Indicative | 1.6511 | Quenched and tempered steels | 0.32–0.4 | 18 |
| SNCM447RCH | — | Cold extrusion steels | 0.44–0.5 | — |
| SNCM616 | — | — | 0.13–0.2 | — |
| SNCM616RCH | — | Cold extrusion steels | 0.13–0.2 | — |
| SNCM625 | — | — | 0.2–0.3 | — |
| SNCM630 | — | — | 0.25–0.35 | — |
| SNCM815 | — | — | 0.12–0.18 | — |
| SNCM815 Indicative | 1.6657 | Special steels for aviation and aerospace | 0.11–0.17 | 15 |
| SNCM815 Indicative | 1.6587 | Case hardening steels | 0.15–0.21 | 15 |
| SNi6059 Indicative | 2.4605 | Nickel and cobalt alloys | ≤ 0.01 | 3 |
| SNR400A | — | Unalloyed structural steels | ≤ 0.24 | — |
| SNR400B | — | Unalloyed structural steels | ≤ 0.22 | — |
| SNR490B | — | Unalloyed structural steels | ≤ 0.2 | — |
| SPA-C | — | Weathering steels | ≤ 0.12 | — |
| SPA-H | — | Weathering steels | ≤ 0.12 | — |
| SPA-H Indicative | 1.8945 | Weathering steels | ≤ 0.12 | 16 |
| SPCC | — | Sheet metal and slit strip | ≤ 0.15 | 1 |
| SPCC Indicative | 1.0330 | Unalloyed structural steels | ≤ 0.12 | 17 |
| SPCC Indicative | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| SPCC Indicative | 1.0322 | Unalloyed structural steels | ≤ 0.12 | 17 |
| SPCD | — | Sheet metal and slit strip | ≤ 0.1 | 1 |
| SPCD Indicative | 1.0347 | Unalloyed structural steels | ≤ 0.1 | 12 |
| SPCE | — | Sheet metal and slit strip | ≤ 0.08 | 1 |
| SPCE Indicative | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| SPCF | — | Sheet metal and slit strip | ≤ 0.06 | 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.