ZL3 is a hot chamber pressure die casting zinc base alloy
ZL3 conforms to EN 1774 1997 Ingot Specification and is one of a family of versatile high-grade zinc alloys we can manufacture in.
Application
ZL3 is a general-purpose alloy and is primarily used for producing castings for a variety of applications on a hot chamber pressure die casting machine. The alloy’s mechanical and physical properties make it ideal for use in castings for the engineering and automotive industry, household equipment and utensils, office equipment, builders’ hardware, locks, toys, giftware etc. ZL3 is easily machined, buffed, polished, lacquered and electroplated for decorative or functional purposes.
National Specifications
The composition of ZL3 conforms to the current EN 1774 1997 Standard, which is now common to all EU countries
Alloy Composition
| MIN | MAX | |
| Aluminium | 3.8% | 4.2% |
| Magnesium | 0.035% | 0.06% |
| Zinc |
REMAINDER |
|
| Iron | - | 0.020% |
| Copper | - | 0.03 |
| Lead | - | 0.003% |
| Cadmium | - | 0.003% |
| Tin | - | 0.001% |
| Nickel | - | 0.001% |
| Silicon | - | 0.02% |
| Pressure Die Casting | ||
| Casting Temperature | °C | 405-425 |
| Freezing Range | °C | 382-387 |
| Specific Heat | J/GK | 0.4187 |
| - | (0.10) | |
| Solidification
Shrinkage |
Cm/m | 1.17 |
| (in/ft) | (0.14) | |
| Casting Shrinkage | Mm/mm | 0.006 |
| (in/in) | (0.006) | |
| Thermal Conductivity at 18 °c | W/m°C | 113 |
| (C.G.S) | (0.27) | |
| Thermal Expansion Linear
per °c |
- | 28x10₆ |
| Pressure Diecasting | ||
| Electrical Conductivity
At 20°C |
%age
IACS |
26 |
| Specific Gravity | - | 6.7 |
| Density | Kg/m₃ | 6700 |
| (ib/in₃) | (0.24) | |
| Tensile Strength at 20°c | N/mm² | 283-241 |
| (ib/in²) | (41000) | |
| Elongation at 20°C | %in 2in | 10-16% |
| Impact strength at 20°C
(unnotched samples) |
J
(ft.obf) |
56.9 |
| Hardness | BHN | 42 |
Figures relate to material in casting form. Properties vary for different processes. Further data available on request.