Typical Shrinkage
Allowances for Important Casting Metals |
|
|
|
|
| Sr.No. |
Metal |
Contraction
(per cent) |
Contraction
(mm per metre) |
|
| 1 |
Grey
cast iron |
0.7
to 1.05 |
7
to 10.5 |
|
| 2 |
White
cast iron |
2.1 |
21 |
|
| 3 |
Malleable
iron |
1.5 |
15 |
|
| 4 |
Steel |
2.0 |
20 |
|
| 5 |
Brass |
1.4 |
14 |
|
| 6 |
Alluminium |
1.8 |
18 |
|
| 7 |
Aluminium
alloys |
1.3
to 1.6 |
13
to 16 |
|
| 8 |
Bronze |
1.05
to 2.1 |
10.5
to 21 |
|
| 9 |
Magnesium |
1.8 |
18 |
|
| 10 |
Zinc |
2.5 |
24 |
|
| 11 |
Manganese
steel |
2.6 |
26.5 |
|
|
|
|
