# 1.1545 (C105U): equivalents

Quelle: <https://mvg-frankfurt.de/en/materials/comparison/1-1545>

> 1.1545 (C105U) internationally: SK3, C105W1, T10A, BW1B, C105E2U and 8 further designations by country and standard.

SK3 · C105W1 · T10A · BW1B · C105E2U

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## Designations by country and standard

| Country / type | Standard | Designation |
|---|---|---|
| Europe | EN | 1.1545· C105U |
| China | GB | T10A |
| Germany | DIN (old) | C105W1 |
| France | AFNOR | C105E2U |
| United Kingdom | BS | BW1B |
| Italy | UNI | C100KU |
| Japan | JIS | SK3 |
| Poland | PN | N10E |
| Russia | GOST | U10A |
| Sweden | SIS | 1880 |
| Czech Republic | ČSN | 19191 |
| USA | AISI (tool steel) | W1 · W5 |
| Austria | ÖNORM | K990 |

## Not unambiguous

- **C100KU** also matches [1.1535](https://mvg-frankfurt.de/en/materials/comparison/1-1535).
- **C105E2U** also matches [1.1535](https://mvg-frankfurt.de/en/materials/comparison/1-1535).
- **K990** also matches [1.1535](https://mvg-frankfurt.de/en/materials/comparison/1-1535).

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