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Magnesium Alloy AZ91D

Magnesium alloy AZ91D is the most widely used magnesium die-casting alloy, with good mechanical properties,Excellent corrosion resistance and castability.

Chemical Composition

ElementContent (%)
Aluminum, Al8.3-9.7
Manganese, Mn0.15-0.50
Zinc, Zn0.35-1
Silicon, Si0.1
Copper, Cu0.03
Iron, Fe0.005
Nickel, Ni0.002
Others, each max0.02
Magnesium, MgRemainder
AZ91D Chemical Composition

Physical Properties

PropertiesMetricImperial
Density1.81 g/cm31.046 lb/in3
AZ91D Physical Properties

Mechanical Properties

PropertiesMetricImperial
Tensile strength240-250 MPa35-36 ksi
Yield strength160 MPa23.20 ksi
Elastic modulus45 GPa6526 ksi
Elongation3-7 %3-7 %
Hardness6363
AZ91D Mechanical Properties

Thermal Properties

PropertiesMetricImperial
Thermal expansion co-efficient (at 20-100°C/68-212°F)26 µm/m°C14.4 µin/in°F
Thermal conductivity (at 20°C/68°F)72.7 W/mK504 BTU in/hr.ft².°F
Magnesium Alloy AZ91D Thermal Properties

Application

Due to the light weight, good strength of magnesium alloy, more and more products are now manufactured by magnesium alloy, as follows

Covers
Housings
Handheld tools
Sporting goods
Computer parts
Mobile and telephones
Household equipment
Automobile components.

Process

Several processing processes of magnesium alloy AZ91D, which is made of magnesium aluminum zinc alloy as the main component of the material, its production process are: casting, extrusion, rolling, forging, die-casting, etc.

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