Purity Casting Alloys - Zinc Die Casting Alloys

ZINC DIE CASTING ALLOYS

Purity Casting Alloys Ltd. produces many stock Zinc Alloys as well as custom Zinc Alloys. Our inhouse labratory allows for real time Alloy assessments to ensure you are receiving the best possible product. Purity has the flexibility to provide quick turn around for short or long run Alloy jobs.

Whether you are sand casting, die casting, pressure casting, let us help you choose the right alloy for the job. We only use silicon graphite crucibles & ladles to ensure high purity levels.

The following is a list of standard alloys that we manufacture. Custom alloys are also available. For more information on specifications & properties of these alloys, please contact us.

Zinc Alloys - Meet all ASTM and ISO specifications. Stock items include:

ZA-3 ZA-5 ZA-8 ZA-12 ZA-27

Ingot sizes -

	Length	Width	Depth	Zinc
Small	10"	3"	2"	10 Lbs
Medium	20"	3"	2"	20 Lbs
Large	28"	6.5"	3.5"	80 Lbs

Chemical Specifications (% by weight) -

ZA-3 ZA-5 ZA-8 ZA-12 ZA-27

Aluminum 3.9 - 4.3 3.9 - 4.3 8.2 - 8.8 105. - 11.5 25.0 - 28.0

Copper 0.03 max 0.75 - 1.25 0.8 - 1.3 0.5 - 1.2 2.0 - 2.5

Magnesium 0.04 - 0.06 0.03 - 0.08 0.02 - 0.03 0.015 - 0.03 0.01 - 0.02

Iron 0.075 max 0.1 max 0.075 max 0.075 max 0.1 max

Cadmium 0.003 max 0.003 max 0.005 max 0.005 max 0.005 max

Zinc Remainder Remainder Remainder Remainder Remainder

Physical Properties (ZA-3 & ZA-12) -

ZA-3 ZA-12

Density (lb/in3) 0.240 0.218

Melting Point (degree F) 728 810

Electrical Conductivity (% IACS) 27 28

Coefficient of Thermal Expansion (68F-212F, uin/in/F) 15.2 12.9

Mechanical Properties (ZA-3 & ZA-12) -

ZA-3 ZA-12

Tensile Strength (ksi) 41 58

Yield Strength (ksi) - 46

Elongation (% in 2") 10 6

Shear Strength (ksi) 31 43

Hardness (Brinell) 82 105

For more information or to order please contact us.