Hot Chamber Zinc Casting Alloys
Mechanical Properties
| Zinc Alloy | #3 | #5 | #7 | #2 | ZA-8 | EZAC |
|---|---|---|---|---|---|---|
|
Ultimate Tensile Strength
(psi x 10^3) |
41 |
48 |
41 |
52 |
54 |
60 |
|
Yield Strength 0.2% Offset
(psi x 10^3) |
– |
– |
– |
– |
42 |
57 |
|
Elongation
(% in 2″) |
10 |
7 |
13 |
7 |
6-10 |
1 |
|
Shear Strength
(psi x 10) |
31 |
38 |
31 |
46 |
– |
– |
|
Hardness
(Brinell) |
82 |
91 |
80 |
100 |
95-110 |
116 |
|
Impact Strength
(ft-lb) |
43 |
38 |
43 |
35 |
31 |
– |
Physical Properties
| Zinc Alloy | #3 | #5 | #7 | #2 | ZA-8 | EZAC |
|---|---|---|---|---|---|---|
|
Density
(lb / in^3) |
0.24 |
0.24 |
0.24 |
0.24 |
0.24 |
– |
|
Melting Range
(F) |
719-728 |
717-727 |
718-728 |
715-734 |
707-759 |
– |
|
Electrical Conductivity
(% IACS) |
27 |
26 |
27 |
25 |
27.7 |
– |
|
Thermal Conductivity
(BTU/ft-hr F) |
65.3 |
62.9 |
65.3 |
60.5 |
66.3 |
– |
|
Coefficient of Thermal Expansion
(68-212 F)(u in/in F) |
15.2 |
15.2 |
15.2 |
15.4 |
12.9 |
– |
|
Specific Heat
(BTU/lb F) |
0.10 |
0.10 |
0.10 |
0.10 |
0.10 |
– |
Chemical Composition
| Zinc Alloy | #3 | #5 | #7 | #2 | ZA-8 | EZAC |
|---|---|---|---|---|---|---|
|
Aluminum |
3.5-4.3 |
3.5-4.3 |
3.5-4.3 |
3.5-4.3 |
8.0-8.8 |
– |
|
Magnesium |
0.02-0.05 |
0.03-0.08 |
0.01-0.02 |
0.02-0.05 |
0.02-0.03 |
– |
|
Copper |
0.25 max |
0.75-1.25 |
0.25 max |
2.6-2.9 |
0.8-1.3 |
– |
|
Iron (max) |
0.10 |
0.10 |
0.075 |
0.075 |
0.10 |
– |
|
Lead (max) |
15.2 |
15.2 |
15.2 |
15.4 |
12.9 |
– |
|
Cadmium (max) |
0.004 |
0.004 |
0.002 |
0.003 |
– |
|
|
Zinc |
Balance |
Balance |
Balance |
Balance |
Balance |
– |