The Brock Metal Company > Products > Zinc > BS EN ZL 8 1774 1998 > ZL3
ZL3 Zinc Alloy
Hot chamber pressure diecasting Zinc alloy.
ZL3 is a pressure die casting zinc base alloy which conforms to BS EN 1774 and is one of a family of versatile high grade zinc alloys manufactured by Brock Metal.
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, builder's hardware, locks, toys, giftware etc. ZL3 is easily machined, buffed, polished, lacquered and electroplated for decorative or functional purposes.
When designing a stressed component using ZL3 further reference should be made to the alloys properties, at elevated temperatures, after natural or artificial ageing and the alloys creep properties.
|
Alloy Designation
|
ZnAl 4
|
Colour code
|
White + yellow.
|
|
Short designation
|
ZL 3
|
Alloy Number.
|
ZL0400
|
|
Chemical composition of Ingots.
|
|
Al |
Cu |
Mg |
Pb |
Cd |
Sn |
Fe |
Ni |
Si |
| Minimum |
3.8 |
-- |
0.035 |
|
|
|
|
|
|
| Maximum |
4.2 |
0.03 |
0.06 |
0.003 |
0.003 |
0.001 |
0.020 |
0.001 |
0.02 |
|
MECHANICAL PROPERTIES
|
| Supplied in diecast form. |
As Cast
|
Aged
|
| Tensile strength |
283 MPa |
241 MPa |
| Yield strength |
221 MPa |
-- |
| Impact strength |
58 Joules |
56 joules |
| Elongation 50mm |
10% |
16% |
| Shear strength |
214 MPa |
-- |
| Compressive yield strength |
413 MPa |
-- |
| Fatigue Strength |
48 |
-- |
| Hardness BHN 500Kg |
82 max |
72 max |
|
PHYSICAL PROPERTIES
|
| Melting range |
381 - 387° C |
| Density |
6.7 g / cm3 |
| Coefficient of Thermal expansion |
27.4 um/m0 C |
| Thermal Conductivity |
113 W/m0 C |
| Electrical Conductivity |
27 % IACS |
| Electrical Resistivity |
6.3694 u ohm-cm at 200 C |
