Zamak 3 (ASTM AG40A): Norm Zinc Die Casting Alloy
ASTM B86 · Published: 2026-06-02 · Updated: July 2026
Zamak 3 (ASTM AG40A) is the de facto standard zinc die casting alloy, containing approximately 4% Al, 0.04% Mg, and ≤0.25% Cu. It provides the optimum balance of castability, dimensional stability, and mechanical properties at the lowest cost...
Zamak 3 (ASTM AG40A) ist der de facto standard zinc die casting alloy, containing approximately 4% Al, 0.04% Mg, und ≤0.25% Cu. Es provides der optimum balance von castability, dimensional stability, und mechanical properties bei der lowest kosten among zinc alloys. Heiß-chamber die casting bei 380-430°C enables der highest production rates von any metal casting process—cycle times von 1-2 seconds für klein components. Excellent für thin-wall (0.5 mm minimum), complex net-shape teile requiring tight tolerances (±0.05 mm achievable). Used für automotive door lock housings, zipper components, plumbing fittings, und electronic stecker bodies.
Quick Facts
| Kategorie | Zinc Alloy |
| Norm | ASTM B86 |
| Density | 6.60 g/cm³ |
| Yield Strength | N/A (brittle) |
| Tensile Strength | 283 MPa (41 ksi) |
Global Equivalents & Cross-Reference
| Alternative Standard / Grade | Action |
|---|---|
| EN ZnAl4 | Compare |
| ZP0400 | Compare |
| JIS ZDC2 | Compare |
| ISO ZnAl4Cu1 | Compare |
Verwandt Materials
🧮 Material Weight Calculator
Calculate the weight based on this material's density: 6.60 g/cm³
Frequently Asked Questions
Was ist der difference zwischen Zamak 3 und Zamak 5?
Zamak 5 adds approximately 1% copper zu improve tensile strength (328 vs 283 MPa) und hardness bei ein klein kosten in ductility (7% vs 10% elongation). Zamak 3 ist preferred für meiste applications due zu better dimensional stability und castability.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu