A437/A437M
A437/A437M (Standard Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service)· ASTM (United States) · 3 materials
| Designation | Material group | |
|---|---|---|
| A 437 Grade B4B | Stainless steels | chevron_right |
| A 437 Grade B4C | Stainless steels | chevron_right |
| A 437 Grade B4D | Structural and constructional steels | chevron_right |