WB 440/3
WB 440/3 (Heat resistant quenched and tempered steel 20 MnMoNi 4-5; Material No. 1.6311; Hollow body, flange, ring, forging, bar steel)· VdTÜV (Germany) · 2 materials
| Designation | Material group | |
|---|---|---|
| 1.6311 | Structural and constructional steels | chevron_right |
| 20 MnMoNi 4-5 | Structural and constructional steels | chevron_right |