Zinc Alloy Parts & Material Selection

From detailed castings to finished components.

Explore zinc grades for custom zinc alloy parts, with manufacturing and finishing options selected around your design and production needs.

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Illustrative zinc enclosure base and compact handle bracket

Illustration · Representative material, component and finish examples, not production records. Final material condition and finish are confirmed for each project.

Metal Materials

About Zinc

Zinc alloys are widely used for die-cast components that combine detailed geometry, dimensional consistency, and finish-ready surfaces. Zinc alloy machining can be used after casting to produce critical holes, threads, and mating features.

Price: Quote-based
Lead Time: Confirmed with quote
Wall Thickness: Design and process dependent
Tolerances: Drawing and process dependent
Max Part Size: Design and process dependent
Grades for Review: Zamak 3, Zamak 5, ZA-8, SHG zinc

Zamak 3 A general-purpose zinc die casting alloy with a balance of castability, dimensional stability, and finishing characteristics.

Material Condition As pressure die-cast Tensile Strength 315 MPa Yield Strength (0.2% Offset) 276 MPa Elongation at Break 7.73% Brinell Hardness 97 HB Density Approx. 6.60 g/cm³

Zamak 5 A zinc alloy with higher strength and hardness than Zamak 3, suitable for parts that require additional mechanical performance.

Material Condition As pressure die-cast Tensile Strength 331 MPa Yield Strength (0.2% Offset) 295 MPa Elongation at Break 3.43% Brinell Hardness 114 HB Density Approx. 6.76 g/cm³

ZA-8 Zinc Alloy A zinc-aluminum alloy used for cast components that require higher strength and creep resistance. Availability depends on project review.

Material Condition As pressure die-cast Tensile Strength 386.8 MPa Yield Strength (0.2% Offset) 318.6 MPa Elongation at Break 3.41% Brinell Hardness 95–110 HB Density Approx. 6.30 g/cm³

High-Purity Zinc Special High Grade zinc is commonly used for alloying and galvanizing. Its suitability and availability for custom parts require project review.

Material Condition SHG zinc ingot, ≥99.995% Zn Tensile Strength — Yield Strength (0.2% Offset) — Elongation at Break — Brinell Hardness — Density Approx. 7.14 g/cm³

Mechanical properties are typical values for pressure-die-cast specimens, 1.5 mm thick, tested at 20°C eight weeks after casting. Elongation uses a 70 mm gauge length. Alloy densities are approximate theoretical values at 21°C with zero porosity. Actual part properties depend on casting conditions and aging. SHG zinc is listed separately; dashes indicate values not specified here.

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Advantages & Considerations of Zinc

Advantages

Detailed Cast Features: Suitable zinc alloys can reproduce fine details and compact features during die casting.
Dimensional Consistency: Die casting can produce repeatable part geometry when tooling and process conditions are controlled.
Finishing Options: Zinc castings can be prepared for plating, painting, and other compatible finishes.
Secondary Machining: Critical holes, threads, and mating surfaces can be machined after casting when required.
Production Efficiency: For suitable designs and quantities, die casting can reduce the amount of machining needed per part.

Considerations

Weight: Zinc alloys are denser than aluminum and magnesium alloys, which may affect weight-sensitive designs.
Temperature and Loading: Long-term loads and elevated temperatures require an assessment of strength and creep.
Tooling Investment: For zinc alloy prototyping or low volumes, compare tooling cost and lead time with the project’s validation needs.

Common Applications
of Zinc

Illustration of a lightweight pocketed bracket, spacer and compact sensor mount

Aerospace

Aerospace prototypes and custom parts for engineering evaluation.

Illustration of a generic machined housing, shaft and mounting bracket for vehicle development

Automotive

Custom automotive parts for prototypes and low-volume production.

Illustration of a molded plastic housing, metal trim frame and formed mounting plate

Electronic Appliances

Custom appliance parts and enclosures for product development.

Illustration of an enclosure panel, mounting bracket and white polymer equipment fixture

Medical

Medical device prototypes, custom housings, and mechanical components.

Illustration of metal gripper fingers, a sensor bracket and a precision fixture block

Automation

Custom robotic parts, fixtures, and automation equipment components.

Surface Finishing Options
for Zinc

Illustrative silver connector shell, two metal disks and a brass-toned contact component

Electroplating

Electrically deposited metal coatings for protective, conductive, or decorative applications.

Illustrative gray and blue painted panels beside a blue enclosure cover

Painting

Industrial painting for specified colors, gloss levels, and application-specific surface protection.

Illustrative blue, charcoal and light-gray powder-coated panels beside a blue bracket

Powder Coating

Cured powder coatings for metal parts, with varied colors and textures.

Illustrative clean stainless bracket and stepped bushing with natural silver surfaces

Passivation

Removes free iron contamination from stainless steel to support corrosion resistance.

Machined metal component with circular bore, mounting holes, and visible tool marks

As Machined

CNC machined surfaces retaining tool marks without additional cosmetic finishing.

Our Commitment

Support for Your Zinc Alloy Parts

Plan zinc alloy parts manufacturing around material selection, tooling, finishing, and inspection requirements.

Material Selection

Compare zinc grades against the part’s loading, finish, and manufacturing requirements.

Manufacturing Review

Review casting geometry, tooling needs, and quantities before production.

Post-Machining

Evaluate machining requirements for critical holes, threads, and mating surfaces.

Surface Finishing

Review zinc alloy surface finishing options against appearance and service conditions.

Quality Inspection

Define dimensional and visual checks according to project requirements.

Project Support

Discuss quotation, lead time, and delivery requirements with our team.

Ready to Produce Zinc Alloy Parts?

Share your drawings and requirements for material guidance, manufacturing review, and a project quote.

Engineering Review
Material Guidance
Project Support

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