BRITISH STANDARD : AEROSPACE SERIES SPECIFICATION FOR
COBALT- CHROMIUM - TUNGSTEN- NICKEL-MANGANESE HEAT-RESISTING ALLOY BILLETS, BARS AND FORGINGS
(Cobalt base Cr 20, W 15, Ni 10, Mn 1.5)
1. INSPECTION AND TESTING PROCEDURE
2. MANUFACTURE
3. CHEMICAL COMPOSITION
4. CONDITION
5. HEAT TREATMENT
6. MECHANICAL PROPERTIES
7. GRAIN SIZE