B702
B702 (Standard Specification for Copper-Tungsten Electrical Contact Material)· ASTM (United States) · 5 materials
| Designation | Material group | |
|---|---|---|
| B 702 Class A | Tungsten | chevron_right |
| B 702 Class B | Tungsten | chevron_right |
| B 702 Class C | Tungsten | chevron_right |
| B 702 Class D | Tungsten | chevron_right |
| B 702 Class E | Tungsten | chevron_right |