AZ91E-T4 Magnesium
Magnesium Alloys
Property Overview
Density1.7g/cm³
Elastic Modulus46GPa
Tensile Strength250MPa
Yield Strength98MPa
Brinell Hardness75HB
Maximum Service Temperature130°C
Chemical Composition
NI
0 to 0.0010%
MN
0.17 to 0.35%
SI
0 to 0.2%
CU
0 to 0.015%
AL
8.1 to 9.3%
MG
88.8 to 91.3%
RES.
Residuals res. | | 0 to 0.3%
RESIDUALS RES.
0 to 0.3%
ZN
0.4 to 1.0%
FE
0 to 0.0050%
Mechanical
Compressive (Crushing) Strength
310 MPa
Elastic (Young's, Tensile) Modulus
46 GPa
Elongation at Break
6.2 %
Fatigue Strength
85 MPa
Fracture Toughness
13 MPa-m 1/2
Impact Strength: V-Notched Charpy
2.8 J
Poisson's Ratio
0.29
Shear Modulus
18 GPa
Shear Strength
140 MPa
Tensile Strength: Ultimate (UTS)
250 MPa
Tensile Strength: Yield (Proof)
98 MPa
Hardness
Brinell Hardness
75
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
49 mm 2 /s
Thermal Expansion
27 µm/m-K
Thermal Shock Resistance
14 points
Electrical
Electrical Conductivity: Equal Volume
10 % IACS
Electrical Conductivity: Equal Weight (Specific)
52 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
12 MJ/m 3
Resilience: Unit (Modulus of Resilience)
110 kJ/m 3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
69 points
Strength to Weight: Axial
40 points
Strength to Weight: Bending
51 points
Environmental
Base Metal Price
12 % relative
Embodied Carbon
22 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
AZ91E-T4 Magnesium
Standards
ASTM B80 ASTM B80: Standard Specification for Magnesium-Alloy Sand Castings
ASTM B80 ASTM B80: Standard Specification for Magnesium-Alloy Sand Castings Essential Readings in Magnesium Technology, Suveen N. Mathaudhu et al. (editors), 2014 Advanced Materials in Automotive Engineering, Jason Rowe (editor), 2012 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993