Zinc Casting at Riverside

Riverside Brass specializes in the casting of ZA12 zinc alloy.
Zinc has been present in casting alloys since ancient times, originally as a result of the zinc oxide found in calamine brass. However, zinc was not identified as a free metal until the 16th century, while zinc residues in furnaces were discarded as "mock silver". By the 1750s, its true nature was properly identified, its potential roles in health and industry could begin to grow.

The high-aluminum zinc alloys such as ZA12 combine high strength, hardness and machineability with good bearing properties and superior creep resistance. ZA12 is a versatile and economical casting material due to its low melting point, allowing lower energy costs. It has excellent properties for structural applications, providing an attractive alternative for many pressure-tight applications, stressed functional components and for electroplated parts. Highly recommended for casting in thin sections, to as little as 2.5 mm, this alloy offers a cost advantage over copper-based alloys as well as easier machining and better corrosion resistance than cast iron.