ČSN steel grades — 647 designations — Page 4
Every grade designated under ČSN, 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
647 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| 12010 | 1.0334 | Unalloyed structural steels | ≤ 0.1 | 11 |
| 12014 | 1.1013 | Others | ≤ 0.05 | 1 |
| 12020 | 1.1148 | Case hardening steels | 0.12–0.18 | 7 |
| 12020 | 1.1141 | Case hardening steels | 0.12–0.18 | 20 |
| 12020 | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| 12021 | 1.0305 | Unalloyed structural steels | ≤ 0.17 | 3 |
| 12021 | 1.0301 | Case hardening steels | 0.07–0.13 | 20 |
| 12022 | 1.0405 | Unalloyed structural steels | ≤ 0.21 | 3 |
| 12022 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| 12022 | 1.0436 | Fine-grain structural steels | 0.15–0.2 | 14 |
| 12022 | 1.1133 | Quenched and tempered steels | 0.17–0.23 | 20 |
| 12023 | 1.1141 | Case hardening steels | 0.12–0.18 | 20 |
| 12023 | 1.0401 | Case hardening steels | 0.12–0.18 | 23 |
| 12024 | 1.0402 | Quenched and tempered steels | 0.17–0.24 | 24 |
| 12024 | 1.1151 | Quenched and tempered steels | 0.17–0.24 | 15 |
| 12030 | 1.0406 | Quenched and tempered steels | 0.22–0.29 | 20 |
| 12030 | 1.1158 | Quenched and tempered steels | 0.22–0.29 | 12 |
| 12031 | 1.0528 | Quenched and tempered steels | 0.27–0.34 | 14 |
| 12031 | 1.1178 | Quenched and tempered steels | 0.27–0.34 | 13 |
| 12031 | 1.1179 | Quenched and tempered steels | 0.27–0.34 | 8 |
| 12040 | 1.0501 | Quenched and tempered steels | 0.32–0.39 | 23 |
| 12040 | 1.1181 | Quenched and tempered steels | 0.32–0.39 | 20 |
| 12041 | 1.0511 | Quenched and tempered steels | 0.37–0.44 | 21 |
| 12041 | 1.1186 | Quenched and tempered steels | 0.37–0.44 | 16 |
| 12042 | 1.5511 | Others | 0.32–0.39 | 3 |
| 12050 | 1.0503 | Quenched and tempered steels | 0.42–0.5 | 24 |
| 12050 | 1.1191 | Quenched and tempered steels | 0.42–0.5 | 21 |
| 12050 | 1.1191 | Others | 0.42–0.5 | 18 |
| 12051 | 1.0540 | Quenched and tempered steels | 0.47–0.55 | 13 |
| 12051 | 1.1206 | Quenched and tempered steels | 0.47–0.55 | 17 |
| 12051 | 1.1241 | Steels for surface hardening | 0.47–0.55 | 8 |
| 12051 | 1.1213 | Steels for surface hardening | 0.5–0.57 | 11 |
| 12051 | 1.0535 | Quenched and tempered steels | 0.52–0.6 | 21 |
| 12056 | 1.0503 | Quenched and tempered steels | 0.42–0.5 | 24 |
| 12060 | 1.0535 | Quenched and tempered steels | 0.52–0.6 | 21 |
| 12060 | 1.1203 | Quenched and tempered steels | 0.52–0.6 | 15 |
| 12060 | 1.1219 | Unalloyed bearing steels | 0.52–0.6 | 3 |
| 12061 | 1.0601 | Quenched and tempered steels | 0.57–0.65 | 25 |
| 12061 | 1.1221 | Quenched and tempered steels | 0.57–0.65 | 18 |
| 12071 | 1.0603 | Spring steels | 0.65–0.72 | 10 |
| 12071 | 1.1744 | Unalloyed tool steels / carbon steels | 0.64–0.72 | 1 |
| 12071 | 1.0612 | Others | 0.63–0.68 | 12 |
| 12071 | 1.1231 | Spring steels | 0.65–0.73 | 18 |
| 12081 | 1.1248 | Spring steels | 0.7–0.8 | 11 |
| 12081 | 1.1249 | Steels for surface hardening | 0.68–0.75 | 2 |
| 12081 | 1.0605 | Spring steels | 0.7–0.8 | 11 |
| 12081 | 1.2003 | Tool steels for cold work | 0.7–0.8 | 9 |
| 12090 | 1.1269 | Spring steels | 0.8–0.9 | 14 |
| 13 151 | 1.5024 | Spring steels | 0.42–0.5 | 6 |
| 13 180 | 1.1260 | Others | 0.6–0.71 | 7 |
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.