Zinc Alloy Die Casting Comparison: Why Zinc Reigns Supreme

10/6/17

zinc die casting priceDie casting is a process on which countless industries rely. But while working with die casting manufacturers is a given, the type of metal or metal alloy your business needs might be a bit less straightforward. Of all the die casting metals available, zinc is by far the easiest to cast due to its higher melting point (approximately 380-390 degrees Celsius, or 716-734 degrees Fahrenheit). If you're trying to make an informed decision about which type of die casting material your needs, this comparison guide may help.

Why Is Zinc Die Casting Superior To Aluminum?

  • Greater Precision: While aluminum is a lighter weight material, it's not nearly as easy to cast accurately as zinc is. Zinc can be cast to a product's final dimensions, but aluminum often needs additional machining after the die casting process is done. Not only is zinc easier to form, but if machining is required for any reason after the die casting process, zinc alloys are also much easier to machine.
  • Longer Tool Life: Simply put, zinc is much stronger and more durable than aluminum. Because of this, die cast zinc tools last far longer than those made from aluminum die casts. In fact, these components can last up to five times longer! Ultimately, that means businesses will require fewer components to be made, thus saving them money in the long run.
  • Lower Cost: Zinc materials are initially more costly than aluminum because this alloy is of a higher quality. But zinc die casting prices are generally lower than those of aluminum. This is because aluminum has to be subjected to cold chamber die casting, which is less efficient than hot chamber die casting. Not only will the zinc die casting price be lower, but because these components will last longer, you'll get more for your money.


Why Is It Better To Die Cast Zinc Than Magnesium?

  • More Durable: Magnesium alloys are sometimes used in die casting when the material's weight is a major consideration in the final product. But zinc alloys are much stronger than magnesium and have a substantial advantage in terms of corrosion resistance. When you compare the cost of magnesium die casting to its lack of rigidity and strength, it's clear to most businesses that zinc wins out.
  • Easier To Form: As hinted above, zinc alloys are stiffer and stronger than magnesium. However, it might surprise you to learn that these qualities actually make zinc easier to form. This provides increased precision, as well. When accuracy matters, the zinc die casting price makes this choice well worth it.
  • More Finishing Options: Whether you require thinner walls or need additional decorative elements, zinc metal alloys are well-suited to more complex designs and finishes. This is extremely beneficial in the tech and automotive industries, in particular. When you need a component to be more complex than average, zinc is usually best for both performance and aesthetics.


Although there are alternatives to zinc die casting we did not discuss here (e.g., pressed or machined steel, cast iron), aluminum and magnesium are among the most common choices for this process. However, with these points in mind, it's clear why zinc alloys are often thought to be the number one choice for countless industries. To find out more about how zinc die casting can help your business get the components it needs, contact us today.



Lakeshore Die Cast

P.O. Box 96

8829 Stevensville-Baroda Rd.

Baroda, MI 49101

Phone: 269.422.1523

Fax:      269.422.1131

Email:  lakeshorediecast@yahoo.com