B391
B391 (Niobium and Niobium Alloy Ingots)· ASTM (United States) · 8 materials
| Designation | Material group | |
|---|---|---|
| B 391 Type 1 | Reactive and Refractory Metals (B, Nb, Hf,….) | chevron_right |
| B 391 Type 1 | Niobium | chevron_right |
| B 391 Type 2 | Reactive and Refractory Metals (B, Nb, Hf,….) | chevron_right |
| B 391 Type 2 | Niobium | chevron_right |
| B 391 Type 3 | Reactive and Refractory Metals (B, Nb, Hf,….) | chevron_right |
| B 391 Type 3 | Niobium | chevron_right |
| B 391 Type 4 | Reactive and Refractory Metals (B, Nb, Hf,….) | chevron_right |
| B 391 Type 4 | Niobium | chevron_right |