# 1.0540 (C50): equivalents

Quelle: <https://mvg-frankfurt.de/en/materials/comparison/1-0540>

> 1.0540 (C50) internationally: AISI 1049, S50C, 1049, Ck50, 070M50 and 8 further designations by country and standard.

AISI 1049 · S50C · 1049 · Ck50 · 070M50

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## Designations by country and standard

| Country / type | Standard | Designation |
|---|---|---|
| Europe | EN | 1.0540· C50 |
| Germany | DIN (old) | Ck50 |
| France | AFNOR | XC48H1 |
| United Kingdom | BS | 070M50 · 080M50 |
| ISO | ISO | C50E4 |
| Italy | UNI | 1C50 |
| Japan | JIS | S50C |
| Sweden | SIS | 1674 |
| Czech Republic | ČSN | 12051 |
| USA | AISI | AISI 1049 · AISI 1050 |
| USA | SAE | 1049 · 1050 |

## Not unambiguous

- **080M50** also matches [1.1206](https://mvg-frankfurt.de/en/materials/comparison/1-1206).
- **1050** also matches [1.1206](https://mvg-frankfurt.de/en/materials/comparison/1-1206), [1.1241](https://mvg-frankfurt.de/en/materials/comparison/1-1241), [EN AW-1050A](https://mvg-frankfurt.de/en/materials/comparison/en-aw-1050a).
- **1674** also matches [1.1206](https://mvg-frankfurt.de/en/materials/comparison/1-1206).
- **AISI 1050** also matches [1.1206](https://mvg-frankfurt.de/en/materials/comparison/1-1206), [1.1241](https://mvg-frankfurt.de/en/materials/comparison/1-1241).
- **C50E4** also matches [1.1206](https://mvg-frankfurt.de/en/materials/comparison/1-1206).
- **Ck50** also matches [1.1206](https://mvg-frankfurt.de/en/materials/comparison/1-1206).
- **S50C** also matches [1.1206](https://mvg-frankfurt.de/en/materials/comparison/1-1206).
- **XC48H1** also matches [1.1191](https://mvg-frankfurt.de/en/materials/comparison/1-1191).

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