# 1.1535 (C90U): equivalents

Quelle: <https://mvg-frankfurt.de/en/materials/comparison/1-1535>

> 1.1535 (C90U) internationally: SK4, C105W2, T10, C105E2U, C100KU and 6 further designations by country and standard.

SK4 · C105W2 · T10 · C105E2U · C100KU

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## Designations by country and standard

| Country / type | Standard | Designation |
|---|---|---|
| Europe | EN | 1.1535· C90U |
| China | GB | T10 |
| Germany | DIN (old) | C105W2 |
| France | AFNOR | C105E2U |
| Italy | UNI | C100KU |
| Japan | JIS | SK4 · SK5 |
| Poland | PN | N10 |
| Russia | GOST | U10 |
| Czech Republic | ČSN | 19192 |
| USA | AISI (tool steel) | W110 |
| Austria | ÖNORM | K990 |

## Not unambiguous

- **C100KU** also matches [1.1545](https://mvg-frankfurt.de/en/materials/comparison/1-1545).
- **C105E2U** also matches [1.1545](https://mvg-frankfurt.de/en/materials/comparison/1-1545).
- **K990** also matches [1.1545](https://mvg-frankfurt.de/en/materials/comparison/1-1545).
- **SK5** also matches [1.1525](https://mvg-frankfurt.de/en/materials/comparison/1-1525).

Equivalents are approximations: the composition and limits of the standards differ in part. For certificates, the ordered standard applies.