AZ81A-F Magnesium
Magnesium Alloys
Property Overview
Density1.7g/cm³
Elastic Modulus46GPa
Tensile Strength160MPa
Yield Strength84MPa
Brinell Hardness55HB
Maximum Service Temperature130°C
Chemical Composition
NI
0 to 0.010%
MN
0.13 to 0.35%
SI
0 to 0.3%
CU
0 to 0.1%
AL
7.0 to 8.1%
MG
89.8 to 92.5%
RES.
Residuals res. | | 0 to 0.3%
RESIDUALS RES.
0 to 0.3%
ZN
0.4 to 1.0%
Mechanical
Compressive (Crushing) Strength
310 MPa
Elastic (Young's, Tensile) Modulus
46 GPa
Elongation at Break
3.0 %
Fatigue Strength
80 MPa
Poisson's Ratio
0.29
Shear Modulus
18 GPa
Shear Strength
91 MPa
Tensile Strength: Ultimate (UTS)
160 MPa
Tensile Strength: Yield (Proof)
84 MPa
Hardness
Brinell Hardness
55
Physical
Density
1.7 g/cm 3
Thermal
Latent Heat of Fusion
350 J/g
Maximum Temperature: Mechanical
130 °C
Melting Completion (Liquidus)
600 °C
Melting Onset (Solidus)
500 °C
Solidification (Pattern Maker's) Shrinkage
1.3 %
Specific Heat Capacity
990 J/kg-K
Thermal Conductivity
84 W/m-K
Thermal Diffusivity
50 mm 2 /s
Thermal Expansion
27 µm/m-K
Thermal Shock Resistance
9.1 points
Electrical
Electrical Conductivity: Equal Volume
12 % IACS
Electrical Conductivity: Equal Weight (Specific)
65 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
4.0 MJ/m 3
Resilience: Unit (Modulus of Resilience)
77 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
70 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
38 points
Environmental
Base Metal Price
12 % relative
Embodied Carbon
23 kg CO 2 /kg material
Embodied Energy
160 MJ/kg
Embodied Energy
160 MJ/kg 67 x 10 3 BTU/lb
Embodied Water
990 L/kg
Embodied Water
990 L/kg 120 gal/lb
Registered Designations & Aliases
AZ81A-F Magnesium
Standards
ASTM B80 ASTM B80: Standard Specification for Magnesium-Alloy Sand Castings