# 1.8902 (S420N): equivalents

Quelle: <https://mvg-frankfurt.de/en/materials/comparison/1-8902>

> 1.8902 (S420N) internationally: SM490A, A255Gr.D, StE420, Q420D, E420R and 6 further designations by country and standard.

SM490A · A255Gr.D · StE420 · Q420D · E420R

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## Designations by country and standard

| Country / type | Standard | Designation |
|---|---|---|
| Europe | EN | 1.8902· S420N |
| China | GB | Q420D |
| Germany | DIN (old) | StE420 |
| EURONORM | EURONORM | FeE420KGN |
| France | AFNOR | E420R |
| ISO | ISO | E420 |
| Japan | JIS | SM490A · SM490C |
| Russia | GOST | 16G2AF |
| Spain | UNE | AE420KG |
| USA | ASTM | A255Gr.D · A633E |

## Not unambiguous

- **A633E** also matches [1.8912](https://mvg-frankfurt.de/en/materials/comparison/1-8912).
- **E420** also matches [1.0575](https://mvg-frankfurt.de/en/materials/comparison/1-0575).
- **E420R** also matches [1.8825](https://mvg-frankfurt.de/en/materials/comparison/1-8825).
- **SM490A** also matches [1.0045](https://mvg-frankfurt.de/en/materials/comparison/1-0045).
- **SM490C** also matches [1.0570](https://mvg-frankfurt.de/en/materials/comparison/1-0570).

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