Material
Magnesium Alloy AZ91D (Cast)
Magnesium Alloy AZ91D is the most widely used die-cast magnesium alloy, and it offers the best corrosion resistance in the AZ family alongside good strength-to-weight performance.
Manufacturing processes
About
AZ91D is a high-purity cast magnesium-aluminum-zinc alloy (about 9% Al, 1% Zn) with tightly controlled iron, nickel, and copper content, which gives it the best corrosion resistance among common die-cast magnesium alloys, although long-term saltwater or acidic exposure still calls for a protective coating.
Both strength and creep resistance drop at elevated temperature, so it isn't suited for sustained high-heat structural loads; magnesium chips are flammable and require fire-safe machining.
The material is suitable for automotive housings, electronics enclosures, and power tool bodies.
Technical Details
- Accuracy
- ±0.2% (lower limit of ±0.13 mm)
- Density
- 1.8 g/cm³
- Min. wall thickness
- -
Technical Properties
- Tensile strength
- 230 - 310 MPa
- Tensile elongation
- 3 - 7%
- Embossing
- min. 0.3 mm
- Engraving
- min. 0.3 mm
- Warping risk
- N/A