Casting Alloys | 7xx.x Al-Zn Alloys
- Heat treatable/sand and permanent mould cast (harder to cast)
- Furniture/garden tools/office machines/farm/mining equipment
- Representative alloys: 705.0,712.0
- Approximate ultimate tensile strength range:30-55 ksi
Because of the increased difficulty in casting 7xx.x alloys, they tend to be used only where the excellent finishing characteristics and machinability are important.