A631
A631 (Cast Steel Wheels for Electrical Railway Service)· ASTM (United States) · 5 materials
| Designation | Material group | |
|---|---|---|
| A 631 Class A | Cast steels | chevron_right |
| A 631 Class B | Cast steels | chevron_right |
| A 631 Class C | Cast steels | chevron_right |
| A 631 Class L | Cast steels | chevron_right |
| A 631 Class U | Cast steels | chevron_right |