JIS steel grades — 2322 designations — Page 9
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. 7 of 50 rows differ and carry an “Indicative” mark.
Also known as
2322 designations| Grade | Category | C% by weight |
|---|---|---|
| SCH12 Indicative | Heat-resistant cast steels | 0.3–0.5 |
| SCH12X | Heat-resistant cast steels | 0.3–0.5 |
| SCH13 | Heat-resistant cast steels | 0.2–0.5 |
| SCH13A | Heat-resistant cast steels | 0.25–0.5 |
| SCH13A Indicative | Heat-resistant cast steels | 0.3–0.5 |
| SCH13X | Heat-resistant cast steels | 0.3–0.5 |
| SCH15 | Heat-resistant cast steels | 0.35–0.7 |
| SCH15 Indicative | Heat-resistant cast steels | 0.3–0.5 |
| SCH15X | Heat-resistant cast steels | 0.3–0.5 |
| SCH16 | Heat-resistant cast steels | 0.2–0.35 |
| SCH17 | Heat-resistant cast steels | 0.2–0.5 |
| SCH17 Indicative | Heat-resistant cast steels | 0.3–0.5 |
| SCH18 | Heat-resistant cast steels | 0.2–0.5 |
| SCH19 | Heat-resistant cast steels | 0.2–0.5 |
| SCH1X | Heat-resistant cast steels | 0.3–0.5 |
| SCH2 | Heat-resistant cast steels | ≤ 0.4 |
| SCH20 | Heat-resistant cast steels | 0.35–0.75 |
| SCH20X | Heat-resistant cast steels | 0.3–0.5 |
| SCH20XNb | Heat-resistant cast steels | 0.3–0.5 |
| SCH21 | Heat-resistant cast steels | 0.25–0.35 |
| SCH22 | Heat-resistant cast steels | 0.35–0.45 |
| SCH22 Indicative | Heat-resistant cast steels | 0.3–0.5 |
| SCH22X | Heat-resistant cast steels | 0.3–0.5 |
| SCH23 | Heat-resistant cast steels | 0.2–0.6 |
| SCH24 | Heat-resistant cast steels | 0.35–0.75 |
| SCH24X | Heat-resistant cast steels | 0.3–0.5 |
| SCH24XNb | Heat-resistant cast steels | 0.3–0.5 |
| SCH2X1 | Heat-resistant cast steels | 0.3–0.5 |
| SCH2X2 | Heat-resistant cast steels | 0.3–0.5 |
| SCH3 | Heat-resistant cast steels | ≤ 0.4 |
| SCH31 | Heat-resistant cast steels | 0.15–0.35 |
| SCH31 Indicative | Heat-resistant cast steels | 0.15–0.35 |
| SCH32 | Heat-resistant cast steels | 0.15–0.35 |
| SCH33 | Heat-resistant cast steels | 0.25–0.5 |
| SCH34 | Heat-resistant cast steels | 0.05–0.12 |
| SCH4 | Heat-resistant cast steels | 0.2–0.35 |
| SCH41 | Heat-resistant cast steels | 0.35–0.6 |
| SCH42 | Heat-resistant cast steels | 0.35–0.55 |
| SCH43 | Heat-resistant cast steels | ≤ 0.1 |
| SCH44 | Heat-resistant cast steels | 0.4–0.6 |
| SCH45 | Heat-resistant cast steels | 0.35–0.65 |
| SCH46 | Heat-resistant cast steels | 0.44–0.48 |
| SCH47 | Heat-resistant cast steels | ≤ 0.5 |
| SCH5 | Heat-resistant cast steels | 0.3–0.5 |
| SCH6 | Heat-resistant cast steels | 1.2–1.4 |
| SCLE1 | Controlled-expansion nickel-iron alloys | — |
| SCLE2 | Controlled-expansion nickel-iron alloys | — |
| SCLE3 | Controlled-expansion nickel-iron alloys | — |
| SCLE4 | Controlled-expansion nickel-iron alloys | — |
| SCM 2 Indicative | Quenched and tempered steels | 0.22–0.29 |
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.






