Zamak ZA 12 Ingot (Aluminum 10.5%-11.5%, Copper 0.5-1.2%, Zinc Balance

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4.00 LBS
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This ingot measures approximately 1" x 2" x 8.5" and weighs 4 pounds

ZA-12 is the most versatile zinc alloy in terms of combining high performance properties and ease of fabrication using either gravity or pressure die casting. ZA-12 is the best gravity casting alloy for sand, permanent mold and the new graphite mold casting process. It is also a good pressure die casting alloy (cold chamber) which provides a sounder structure than ZA-27, as well as higher die cast elongation and impact properties. For these reasons, die cast ZA-12 often competes with ZA-27 for strength application. An excellent bearing alloy, ZA-12 is also platable, although plating adhesion is reduced compared to the ZAMAK alloys.

Physical Properties

Density (lb/in3)                      0.218

Melting Point (degree F)         810

Electrical Conductivity            28

(% IACS)

Coefficient of Thermal           12.9

Expansion (68F-212F, uin/in/F)


Mechanical Properties

Tensile Strength (ksi)            58

Yield Strength (ksi)               46

Elongation (% in 2”)              6

Shear Strength                    43

Hardness (Brinell)                105


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