SRPS steel grades — 178 designations — Page 4
Every grade designated under SRPS, 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. Every name on this page is an indicative cross-reference, not an asserted identity: the grades are close, not interchangeable. Check the composition before you substitute.
Also known as
178 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| Č.6444 | 1.2550 | Tool steels for cold work | 0.55–0.65 | 15 |
| Č.6445 | 1.2552 | Tool steels for cold work | 0.75–0.85 | 1 |
| Č.6450 | 1.2564 | Tool steels for hot work | 0.25–0.35 | 2 |
| Č.6451 | 1.2581 | Tool steels for hot work | 0.25–0.35 | 18 |
| Č.6840 | 1.2516 | Tool steels for cold work | 1.15–1.25 | 2 |
| Č.6842 | 1.2515 | Others | 0.95–1.1 | 1 |
| Č.6850 | 1.2562 | Tool steels for cold work | 1.35–1.5 | 1 |
| Č.6880 | 1.3355 | High-speed steels | 0.73–0.83 | 22 |
| Č.6881 | 1.3302 | High-speed steels | 1.2–1.35 | 2 |
| Č.6980 | 1.3255 | High-speed steels | 0.75–0.83 | 14 |
| Č.7100 | 1.5415 | Heat-resistant structural steels | 0.12–0.2 | 15 |
| Č.7400 | 1.7335 | Heat-resistant structural steels | 0.08–0.18 | 22 |
| Č.7401 | 1.7380 | Heat-resistant structural steels | 0.08–0.14 | 20 |
| Č.7420 | 1.7321 | Case hardening steels | 0.17–0.23 | 4 |
| Č.7421 | 1.7325 | Case hardening steels | 0.23–0.29 | 3 |
| Č.7422 | 1.6523 | Case hardening steels | 0.17–0.23 | 18 |
| Č.7431 | 1.7350 | Heat-resistant structural steels | 0.19–0.26 | 2 |
| Č.7432 | 1.7733 | Heat-resistant structural steels | 0.2–0.28 | 15 |
| Č.7435 | 1.6753 | Others | 0.2–0.26 | 1 |
| Č.7450 | 1.2365 | Tool steels for hot work | 0.28–0.35 | 18 |
| Č.7480 | 1.7323 | Case hardening steels | 0.17–0.23 | 2 |
| Č.7481 | 1.7326 | Case hardening steels | 0.23–0.29 | 1 |
| Č.7680 | 1.3343 | High-speed steels | 0.86–0.94 | 19 |
| Č.7880 | 1.3346 | High-speed steels | 0.78–0.86 | 5 |
| Č.9681 | 1.3202 | High-speed steels | 1.3–1.45 | 12 |
| Č.9682 | 1.3265 | High-speed steels | 0.72–0.8 | 6 |
| Č.9683 | 1.3207 | High-speed steels | 1.2–1.35 | 14 |
| Č.9780 | 1.3243 | High-speed steels | 0.87–0.95 | 19 |
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.