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Metals Materials

Zinc

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At a glance

Processes

CNC Mill
CNC Lathe

Lead Time

As fast as 7 days

Finishing Options

Vibratory Tumbling, Media Blasting, Powder Coating

Tolerance

With drawing: as low as +/- 0.005 mm No drawing: ISO 2768 medium

About the Material

Zamak 3 is the most widely used grade of Zinc available and provides excellent dimensional stability (along with other physical and mechanical properties).

Material Properties

Zamak 3 (Zinc)

Yield Strength (tensile)

30,000 PSI

Elongation at Break

10%

Hardness

Brinell 82

Density

6.6 g/cm^3
0.24lb / in^3

Material Finish

Zamak 3 is very similar to most grades of aluminum in terms of overall appearance. Zamak 3 can be media blasted or tumbled to achieve a multitude of surface finishes. Additionally, powder coating can be applied to achieve more matte/glossy colors.

Design Recommendations

Min Wall Thickness

0.5 mm (0.02 in)

Min End Mill Size

0.8 mm (0.03 in)

Min Drill Size

0.5 mm (0.02 in)

Max Part Size

1200 x 500 x 152 mm [x,y,z] (mill) 152 x 394 mm [d,h] (lathe)

Undercuts

Square profile, full radius, dovetail profiles

Radii : Depth

Depth must not exceed 12x drill bit diameter. For end mills, depth must not exceed 10x tool diameter.

Cost Saving Tip

To reduce costs, limit the number of part setups, the number of inspection dimensions or tight tolerances, and deep pockets with small radii.

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