Zamak Alloys
Riboldi Alloys
Refining and processing of materials
We are able, throughthe great expertise gained, to operate in refining and processing materials containing a significant contribution of zinc: all zamak bars in line with the European standards EN 1774.
We make use of a spectrometer, checking all different and various production stages, to provide all our products with top quality standards.
The pluses of zamak
The advantages
Advantages of machining Zamak by die casting:
Details
Our alloys
The following tables show the alloys produced by us and their chemical features:
| Al% | Cu% | Mg% | Fe% | Cd% | Pb% | Sn% | Si% | Ni% | Zn | |
|---|---|---|---|---|---|---|---|---|---|---|
| Zamak 12 Zn Al 4 Cu 3 Z 430 | 3,8-4,2 | 2,7-3,3 | 0,035 – 0,06 | Max 0,02 | Max 0,003 | Max 0,003 | Max 0,001 | Max 0,02 | Max 0,001 | DIFF. |
| Zamak 15 Zn Al 4 Cu 1 Z 410 | 3,8-4,2 | 0,7-1,1 | 0,035 – 0,06 | Max 0,02 | Max 0,003 | Max 0,003 | Max 0,001 | Max 0,02 | Max 0,001 | DIFF. |
| Zamak 13 Zn Al 4 Z 400 | 3,8-4,2 | ≤0,03 | 0,035 – 0,06 | Max 0,02 | Max 0,003 | Max 0,003 | Max 0,001 | Max 0,02 | Max 0,001 | DIFF. |
| Physical features | Zamak 12 | Zamak 13 | Zamak 15 | |
|---|---|---|---|---|
| Density | Kg/dm3 | 6,70 | 6,60 | 6,65 |
| Melting range | °C | 379÷389 | 380÷386 | 380÷386 |
| Specific heat | J/Kg°C | 427 | 410 | 440 |
| Thermal conductivity at 20° | W/m°K | 104,6 | 113 | 108,9 |
| Resistance at 20° | x10-8 Ω m | 6,75 | 6,40 | 6,55 |
| Optimal range of casting under pressure | °C | 400÷440 | 400÷440 | 400÷440 |
| Electrical conduction at 20° | Ms/m | 14,6 | 15,7 | 15,3 |
| Linear thermal expansion coefficients | cm/cmx10-6 °C | 27,7 | 27,4 | 27,4 |
| Linear shrinkage | % | 1,25 | 1,17 | 1,17 |
| Modulus of elasticity | Kg/mm2 (GPa) | 10,000 (98) | 10,000 (98) | 10,000 (98) |
| Melting maximum temperature | °C | 480 | 480 | 480 |
| Mould casting temperature under pressure | °C | 200 | 200 | 200 |
Riboldi Foundry
Are you looking for a supplier for Zamak die-casting alloys?
Technological research and the continuous desire to offer a quality product allows us to look to the future and face new challenges with optimism.