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Certifications
2002
1
- 2
- 3 |
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GENERAL PROPERTIES
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| PHYSICAL |
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ZAMAS
12
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ZAMAS
13 |
ZAMAS
15 |
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| Density |
Kg/dm3 |
6,70 |
6,60 |
6,65 |
| Melting range |
°C |
379÷389 |
380÷386 |
380÷386 |
| Specific heat capacity |
J/Kg°K |
427 |
410 |
440 |
| Thermal conductivity at 20°C |
W/m°K |
104,6 |
113 |
108,9 |
| Resistivity at 20°C |
x10-8Ωm |
6,75 |
6,40 |
6,55 |
Optimum casting range
under pressure |
°C |
400÷440 |
400÷440 |
400÷440 |
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| Electrical conductivity at 20°C |
Ms/m |
14,6 |
15,7 |
15,3 |
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| Thermal linear expansion |
cm/cmx10-6/°C |
27,7 |
27,4 |
27,4 |
| Linear shrinkage |
% |
1,25 |
1,17 |
1,17 |
| Young modulus |
Kg/mm2 (GPa) |
10.000 (98) |
10.000 (98) |
10.000 (98) |
| Maximum melting temperature |
°C |
480 |
480 |
480 |
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Mould temperature
for pressure die-casting |
°C |
200 |
200 |
200 |
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| CHEMICAL (test%) - EN 1774 |
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ZAMAS
12
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ZAMAS
13 |
ZAMAS
15 |
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| Aluminium* |
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3,8÷4,2 |
3,8÷4,2 |
3,8÷4,2 |
| Copper |
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2,7÷3,3 |
max 0,03 |
0,7÷1,1 |
| Magnesium |
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0,035÷0,06 |
0,035÷0,06 |
0,035÷0,06 |
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| Impurities: |
Lead |
max 0,003 |
max 0,003 |
max 0,003 |
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Cadmium |
max 0,003 |
max 0,003 |
max 0,003 |
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Tin |
max 0,001 |
max 0,001 |
max 0,001 |
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Iron |
max 0,020 |
max 0,02 |
max 0,02 |
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Nickel |
max 0,001 |
max 0,001 |
max 0,001 |
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Silicon |
max 0,02 |
max 0,02 |
max 0,02 |
| Tot. impurities: |
Cd+Pb+Sn |
max 0,060 |
max 0,060 |
max 0,060 |
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Zinc |
remainder |
remainder |
remainder |
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| MECHANICAL |
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ZAMAS
12
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ZAMAS
13 |
ZAMAS
15 |
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| Tensile strength |
MPa |
300÷330 |
250÷280 |
280÷310 |
| Linear elongation (51 mm) |
% |
8 |
10 |
7 |
| Brinell hardness (500 Kg) |
HB |
85÷100 |
70÷85 |
80÷90 |
| Impact energy (6,35X6,35 Charpy) |
J |
47 |
58 |
65 |
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*The only alloying element utilised is aluminium 99.7% to allow
the iron contents of the alloy to be controlled.
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