Material |
||||||||
Characteristic |
Grey Iron |
SG Iron |
Malleable |
Steel |
Aluminium |
Brass |
||
LM6 (Sand) |
LM24 (Pressure) |
LM25 (Gravity) |
||||||
Castability |
5 | 4 |
4 |
1 |
5 |
5 |
5 |
4 |
Machinability |
5 |
4 |
4 |
3 |
3 |
4 |
5* |
4 |
Surface Hardening (Heat Treatment) |
5 |
5 |
5 |
3 |
1 |
1 |
5 |
1 |
Elasticity |
3 |
5 |
4 |
5 |
5 |
4 |
4 |
3 |
Impact Resistance |
1 |
4 |
3 |
5 |
3 |
4 |
5* |
3 |
Corrosion Resistance |
5 |
5 |
3 |
2 |
5 |
3 |
3 |
4 |
Tensile Strength |
1 |
4 |
4 |
5 |
3 |
4 |
5* |
3 |
Cost of Manufacture |
5 |
4 |
3 |
2 |
3 |
5 |
4 |
3 |
Key: 5 = Best, 1 = Worst
*In fully heat treated condition.