Material

Zinc alloy: hardness, resistance and excellent conductivity

Being highly competitive for mass production, zinc alloy is highly advantageous when it comes to replacing components, including those manufactured using other materials, prolonged lifespans, greater resistance and a wider range of possible finishes, as well as the possibility of thinner parts. These are some of the advantages and qualities provided by Zinc, which makes this metal our main option when it comes to manufacturing die cast parts and components.

  • High resistance and structural stability.
  • High performance in electrical and thermal conductivity.
  • Precision.
  • Geometric complexity.
  • Multiple quality finishes.
  • Resistance to corrosion.

Types of alloy

We work with the following zinc alloys according to the requirements provided by our clients as guidelines.

ZP 2  I  ZP3  I  ZP5  I  ZP7  I  ZP8

ZINC ZP2 ZINC ZP3 ZINC ZP5
MECHANICAL PROPERTIES
Material Zinc Zinc Zinc
Alloy ZP2 ZP3 ZP5
Resistance to tension MPa. 335 MPa. 280 MPa. 330
Elasticity limit (0.2%) MPa. 270 MPa. 200
Resistance to impact J. 59 J. 57 J. 58
Resistance to fatigue MPa. 60 MPa. 48 MPa. 56
Hardness HB. 102 HB. 83 HB. 92
Elongation % in 50mm. 5 % in 50mm. 10 % in 50mm. 5
Process Hot camber die casting Hot camber die casting Hot camber die casting
PHYSICAL PROPERTIES
Material Zinc Zinc Zinc
Alloy ZP2 ZP3 ZP5
Density g/m3. 6,8 g/m3. 6,7 g/m3. 6,7
Fusion point (Normal +/- 50) c. 379-389 c. 382-387 c. 379-388
Thermal conductivity W/m K. 119 W/m K. 113 W/m K. 110
Thermal expansion coefficient µm/m°K. 27 µm/m°K. 48 µm/m°K. 27
Electrical conductivity %IACS. 15 %IACS. 15 %IACS. 15
Process Hot chamber die casting Hot chamber die casting Hot chamber die casting
COMPOSITION
Aluminium 3.7-4.3 3.7-4.3 3.7-4.3
Copper 2.7-3.3 0.1 0.7-4.3
Magnesium 0.025-0.06 0.025-0.06 0.025-0.06
Iron (max) 0.05 0.05 0.05
Lead (max) 0.005 0.005 0.005
Cadmium (max) 0.005 0.005 0.005
Tin (max) 0.002 0.002 0.002
Nickel (max) 0.02 0.02 0.02
Zinc Bal Bal Bal
Silicon 0.03 0.03 0.03