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Why Choose Zinc?

Zinc has key properties that are perfect for the die casting process and has many advantages over other metals

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Why Choose Zinc?

Zinc vs Aluminum

The Zinc Top 10 List

Below are the top 10 reasons why you should choose zinc die casting for you die cast needs.

1 - Wide Variety of Finishes
Zinc alloys are much less expensive to finish and there are a wide variety of options for finishing. From galvanizing for long lasting strength to beautiful satin chrome finishes, zinc is versatile in its finishing capabilities and its superior surface texture makes it an economical choice over other materials such as aluminum.

2 - 8-10x Greater Tool Life
The tools for zinc die cast components have exceptionally long lives. A zinc die cast tool usually lasts around 1 million shots, whereas an aluminum tool will typically only last 100,000 to 200,000 shots. For parts with high volumes, zinc will always be a money saver in tooling costs.

3 - Exceptional Fluidity
Another one of zinc’s advantageous casting properties is its fluidity. Zinc has the ability to be cast thinner and more precisely than aluminum. This makes it an easy favorite for components with intricate details or thinner walls.

4 - Faster Cycle Times
Hot chamber die casting is the process that all zinc die casters use. It’s different than cold chamber die casting because there is no pouring of the molten metal into the gooseneck. This makes hot chamber much faster because the metal comes directly from the chamber underneath and there’s no wait time for filling.

5 - Sustainability & Recycling
Zinc die castings can be easily recycled compared to plastic substrates, making zinc a more sustainable manufacturing material.

6 - Energy Savings
Because zinc melts at a much lower temperature than aluminum, it saves a lot of money and energy in the heating and melting process. Zinc melts at ~800°F whereas aluminum melts at ~1200°F.

7 - Superior Yield Strength
Zinc has superior yield strength over aluminum. Zinc die casting’s strength comes from its “skin,” the outer surface layer of a casting. When this skin is broken, it can decrease the overall yield strength of the component.

8 - Net Shape Casting
Casting to net shape means that the casting comes out of the die and doesn’t need to be machined at all. This is extremely advantageous in terms of piece price because fewer machine hours and processing steps translate into a lower the piece price.

9 - Excellent Thermal Conductivity
Zinc is an excellent conductor of temperature. This makes it a great material for heat sinks in certain applications.

10 - Perception of Quality
Weight is a property of zinc that can’t be ignored. It’s roughly 2 ½ times heavier than aluminum, which can be a major disadvantage in certain applications, but not in others. If you want to make a product that has thin wall design while achieving high perceived value, zinc is the perfect material. Its density conveys value and quality to any end customer.

The North American Die Casting AssociationThe North American Die Casting Association
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