# 1.0398 (DD12): equivalents

Quelle: <https://mvg-frankfurt.de/en/materials/comparison/1-0398>

> 1.0398 (DD12) internationally: SPHE, A621DQ, RRStW23, HR2, StW23 and 1 further designations by country and standard.

SPHE · A621DQ · RRStW23 · HR2 · StW23

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## Designations by country and standard

| Country / type | Standard | Designation |
|---|---|---|
| Europe | EN | 1.0398· DD12 |
| Germany | DIN (old) | RRStW23 · StW23 |
| United Kingdom | BS | HR2 |
| Japan | JIS | SPHE |
| Czech Republic | ČSN | 11325 |
| USA | ASTM | A621DQ |

## Not unambiguous

- **HR2** also matches [1.0332](https://mvg-frankfurt.de/en/materials/comparison/1-0332).
- **SPHE** also matches [1.0335](https://mvg-frankfurt.de/en/materials/comparison/1-0335).

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