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Casting Alloys | 8xx.x Al-Sn Alloys

Supplier: Calm Aluminium

Casting Alloys, 8xx.x alloys are relatively hard to cast like the 7xx.x alloys, and are used only where their unique machining and bushing characteristics are essential.

Price Guide: POA

Casting Alloys | 8xx.x Al-Sn Alloys

  • Heat treatable/sand and permanent mould castings (harder to cast)
  • Excellent machinability
  • Bearings and bushings of all types
  • Representative alloys:850.0,851.0
  • Approximate ultimate tensile strength range:15-30 ksi

In concluding this section on casting, it is worth noting that conventional die casting tends to yield parts with relatively low elongation values, which are therefore unsuitable for safety-critical components. In recent years, higher pressure types of casting (e.g., squeeze casting and thixocasting) have been developed to a commercial level.

As a result, elongation values of well over 10% are now attainable, together with higher strengths. This considerably widens the range of application of aluminium alloy castings.