ČSN steel grades — 647 designations
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. Unless marked, every name here is an indicative cross-reference, not an asserted identity — the grades are close, not interchangeable. 3 of 50 rows differ and carry a “This grade’s own name” mark.
Also known as
647 designations| Grade | Material no. | Category | C% by weight | Also inother standards |
|---|---|---|---|---|
| 10 500 Hž | 1.0050 | Unalloyed structural steels | — | 23 |
| 10 500 Hž | 1.0050 | Unalloyed structural steels | — | 23 |
| 10000 | 1.0035 | Unalloyed structural steels | — | 22 |
| 10000 | 1.0033 | Unalloyed structural steels | ≤ 0.11 | 3 |
| 10000 | 1.0034 | Unalloyed structural steels | ≤ 0.15 | 12 |
| 10004 | 1.0035 | Unalloyed structural steels | — | 22 |
| 10022 | 1.0408 | Quenched and tempered steels | ≤ 0.21 | 3 |
| 10216 This grade’s own name | — | — | — | — |
| 10216 | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| 10216 | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 19 |
| 10370 | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 20 |
| 10370 | 1.0036 | Unalloyed structural steels | ≤ 0.17 | 19 |
| 10420 | 1.0077 | Unalloyed structural steels | ≤ 0.25 | 2 |
| 10420 | 1.0042 | Unalloyed structural steels | ≤ 0.23 | 3 |
| 10425 | 1.0433 | Others | — | 2 |
| 10505 This grade’s own name | — | — | — | — |
| 11 320 | 1.0320 | Unalloyed structural steels | ≤ 0.1 | 1 |
| 11 418 | 1.0426 | Aging resistant steels | 0.08–0.2 | 17 |
| 11 448 | 1.0144 | Unalloyed structural steels | ≤ 0.18 | 22 |
| 11 453 | 1.0408 | Quenched and tempered steels | ≤ 0.21 | 3 |
| 11 481 | 1.0436 | Fine-grain structural steels | 0.15–0.2 | 14 |
| 11 523 | 1.0580 | Unalloyed structural steels | ≤ 0.22 | 10 |
| 11 523 This grade’s own name | — | — | — | — |
| 11109 | 1.0715 | Free cutting steels | ≤ 0.14 | 14 |
| 11110 | 1.0721 | Free cutting steels | 0.07–0.13 | 15 |
| 11120 | 1.0725 | Free cutting steels | 0.12–0.18 | 5 |
| 11120 | 1.0724 | Free cutting steels | 0.18–0.25 | 1 |
| 11140 | 1.0726 | Free cutting steels | 0.32–0.39 | 15 |
| 11140 | 1.0762 | Free cutting steels | 0.4–0.48 | 20 |
| 11300 | 1.0314 | Unalloyed structural steels | ≤ 0.03 | 14 |
| 11300 | 1.0330 | Unalloyed structural steels | ≤ 0.12 | 17 |
| 11301 | 1.0333 | Unalloyed structural steels | ≤ 0.08 | 4 |
| 11301 | 1.0347 | Unalloyed structural steels | ≤ 0.1 | 12 |
| 11301 | 1.0314 | Unalloyed structural steels | ≤ 0.03 | 14 |
| 11304 | 1.0347 | Unalloyed structural steels | ≤ 0.1 | 12 |
| 11304 | 1.0335 | Unalloyed structural steels | ≤ 0.08 | 12 |
| 11304 | 1.0336 | Unalloyed structural steels | ≤ 0.09 | 2 |
| 11304 | 1.0322 | Unalloyed structural steels | ≤ 0.12 | 17 |
| 11304 | 1.0330 | Unalloyed structural steels | ≤ 0.12 | 17 |
| 11305 | 1.0335 | Unalloyed structural steels | ≤ 0.08 | 12 |
| 11305 | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| 11305 | 1.0389 | Unalloyed structural steels | ≤ 0.08 | 2 |
| 11320 | 1.0332 | Unalloyed structural steels | ≤ 0.12 | 16 |
| 11320 | 1.0322 | Unalloyed structural steels | ≤ 0.12 | 17 |
| 11321 | 1.0330 | Unalloyed structural steels | ≤ 0.12 | 17 |
| 11321 | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| 11321 | 1.0322 | Unalloyed structural steels | ≤ 0.12 | 17 |
| 11325 | 1.0398 | Unalloyed structural steels | ≤ 0.1 | 5 |
| 11325 | 1.0338 | Unalloyed structural steels | ≤ 0.08 | 18 |
| 11325 | 1.0322 | Unalloyed structural steels | ≤ 0.12 | 17 |
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.