JIS steel grades — 2322 designations — Page 12
Every grade designated under JIS, with the identifying and comparative data we hold for each. 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. 12 of 50 rows differ and carry an “Indicative” mark.
Also known as
2322 designations| Grade | Category | C% by weight | Also inother standards |
|---|---|---|---|
| SCMnH2 Indicative | Quenched and tempered steels | 1.1–1.3 | 19 |
| SCMnH21 | Cast steel | 1–1.35 | — |
| SCMnH2X1 | Cast steel | 0.9–1.05 | — |
| SCMnH2X2 | Cast steel | 1.05–1.35 | — |
| SCMnH3 | Cast steel | 0.9–1.2 | — |
| SCMnH3 Indicative | Quenched and tempered steels | 1.1–1.3 | 19 |
| SCMnH31 | Cast steel | 1.05–1.35 | — |
| SCMnH32 | Cast steel | 0.75–1.35 | — |
| SCMnH33 | Cast steel | 0.7–1 | — |
| SCMnH4 | Cast steel | 1.05–1.35 | — |
| SCMnH41 | Cast steel | 1.05–1.35 | — |
| SCMnM3 | Cast steel | 0.3–0.4 | — |
| SCMQ4E | — | ≤ 0.17 | 1 |
| SCMQ4V | — | ≤ 0.17 | 1 |
| SCMQ5V | — | ≤ 0.17 | 1 |
| SCMV1 | — | ≤ 0.21 | 1 |
| SCMV2 | — | ≤ 0.17 | 1 |
| SCMV3 | — | ≤ 0.17 | 1 |
| SCMV4 | — | ≤ 0.17 | 1 |
| SCMV4 Indicative | Heat-resistant structural steels | 0.08–0.14 | 20 |
| SCMV5 | — | ≤ 0.17 | 1 |
| SCMV6 | — | ≤ 0.15 | 1 |
| SCNCrM2 | Cast steel | 0.25–0.35 | — |
| SCNM439 Indicative | Quenched and tempered steels | 0.32–0.4 | 18 |
| SCPH1 | Cast steel | ≤ 0.25 | — |
| SCPH1 Indicative | Others | ≤ 0.11 | 13 |
| SCPH1-CF | Cast steel | ≤ 0.22 | — |
| SCPH11 | Cast steel | ≤ 0.25 | 1 |
| SCPH11-CF | Cast steel | ≤ 0.2 | — |
| SCPH2 | Cast steel | ≤ 0.3 | — |
| SCPH2-CF | Cast steel | ≤ 0.3 | — |
| SCPH21 | Cast steel | ≤ 0.2 | 1 |
| SCPH21 Indicative | Heat-resistant structural steels | 0.2–0.28 | 15 |
| SCPH21-CF | Cast steel | ≤ 0.15 | — |
| SCPH22 | Cast steel | ≤ 0.25 | — |
| SCPH23 | Cast steel | ≤ 0.2 | — |
| SCPH32 | Cast steel | ≤ 0.2 | 1 |
| SCPH32-CF | Cast steel | ≤ 0.15 | — |
| SCPH61 | Cast steel | ≤ 0.2 | 1 |
| SCPL1 | Cast steel | ≤ 0.3 | — |
| SCPL11 | Cast steel | ≤ 0.25 | — |
| SCPL21 | Cast steel | ≤ 0.25 | — |
| SCPL31 | Cast steel | ≤ 0.15 | — |
| SCr 3 H Indicative | Quenched and tempered steels | 0.34–0.41 | 23 |
| SCr 4 H Indicative | Quenched and tempered steels | 0.38–0.45 | 18 |
| SCR 440H | Quenched and tempered steels | 0.38–0.45 | 13 |
| SCr2 Indicative | Quenched and tempered steels | 0.24–0.31 | 12 |
| SCr3 Indicative | Quenched and tempered steels | 0.34–0.41 | 23 |
| SCr35H Indicative | Quenched and tempered steels | 0.34–0.41 | 23 |
| SCr4 Indicative | Quenched and tempered steels | 0.34–0.41 | 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.






