WB 337
WB 337 (Heat resistant steel 20 NiCrMo 14 5 I and 20 NiCrMo 14 5 II for nuts and bolts, material 1.6772)· VdTÜV (Germany) · 2 materials
| Designation | Material group | |
|---|---|---|
| 1.6772 | Structural and constructional steels | chevron_right |
| 20 NiCrMo 14 5 | Structural and constructional steels | chevron_right |