Specifications

Alloy Selection

Alloy Fluidity Resistance To Hot Cracking Pressure Tighness Normally Heat Treated Strength At Elevated Temperature
319 2 2 2 Optional 3
355 1 1 1 Yes 2
C355 1 1 1 Yes 2
356 1 1 1 Yes 3
A356 1 1 1 Yes 3
357 1 1 1 Yes 3
A357 1 1 1 Yes 2
535 5 4 5 Optional 3
712 3 5 4 No 4
771 3 4 4 Yes 4
Alloy Corrosion Resistance Machinability Polishing Anodizing Appearance Weldability
319 3 3 4 4 2
355 3 3 3 4 1
C355 3 3 3 4 1
356 3 3 4 4 1
A356 3 3 4 4 1
357 3 3 4 4 1
A357 3 3 4 4 1
535 1 1 1 1 4
712 1 1 2 2 4
771 1 1 1 1 4

The above table includes several significant characteristics which deserve consideration in the selection of an alloy.

The characteristics are comparatively rated from 1 to 5 in decreasing order of importance.