Zinc Die Casting Advantages

Zinc die casting from Inventix Manufacturing delivers the level of product quality and production efficiency that helps our customers stay competitive. We exclusively use zinc alloys in our die casting process because they offer greater quality benefits than other materials commonly used in casting and molding.

The unique properties of zinc include:

• High-Quality Casting Capabilities: Zinc can achieve tighter tolerances than molded plastics or cast aluminum. Zinc offers a thin wall castability and the ability to cast to print with little to no draft.
• Superior Mechanical Properties: Zinc features excellent bearing and tensile strength, as well as rigidity.
• Exceptional Physical Properties: Zinc conducts electricity while dissipating heat.
• Multiple Finishing Options: Zinc is suitable for a variety of finishing options for cosmetic and anti-corrosion purposes, including: electroplating, overmolding, powder coating, chrome plating, PVD (physical vapor deposition) and CVD (chemical vapor deposition).
• Environmentally Sustainable: All zinc materials are non-toxic and can be recycled.

Relative Characteristics of Die Casting Alloys

	Aluminum	Brass	Magnesium	Zinc
Dimensional stability	Good	Excellent	Excellent	Good
Corrosion resistance	Good	Excellent	Fair	Fair
Casting ease	Good	Fair	Good	Excellent
Part complexity	Good	Fair	Good	Excellent
Dimensional accuracy	Good	Fair	Excellent	Excellent
Die cost	Medium	High	Medium	Low
Machining cost	Low	Medium	Low	Low
Finishing cost	Medium	Low	High	Low

Mechanical Properties of Die Casting Alloys

	Aluminum	Brass	Magnesium	Zinc
Tensile strength, ksi	47	55	34	41
Yield strength, ksi	23	30	23	-
Shear strength, ksi	28	37	30	31
Fatigue strength, ksi	20	25	14	7
Elongation, %	3.5	15	3.0	10
Hardness (Brinell)	80	91	63	82
Density, lbs/cu in	.098	.305	.066	.24
Thermal conductivity,	.23	.21	.16	.27
Thermal expansion, in/in/ºF x 10^6	12.1	12.0	15.0	15.2
Modulus of elasticity, psi x 10^6	10.3	15	6.5	-
Charpy impact strength, ft/lb	3.0	40	2.0	43.0