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AS41A Magnesium vs. 1230A Aluminum

AS41A magnesium belongs to the magnesium alloys classification, while 1230A aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is AS41A magnesium and the bottom bar is 1230A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
69
Elongation at Break, % 11
4.5 to 34
Fatigue Strength, MPa 100
35 to 74
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
26
Shear Strength, MPa 130
59 to 99
Tensile Strength: Ultimate (UTS), MPa 230
89 to 170
Tensile Strength: Yield (Proof), MPa 140
29 to 150

Thermal Properties

Latent Heat of Fusion, J/g 370
400
Maximum Temperature: Mechanical, °C 110
170
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 570
640
Specific Heat Capacity, J/kg-K 1000
900
Thermal Conductivity, W/m-K 68
230
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
60
Electrical Conductivity: Equal Weight (Specific), % IACS 92
200

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 1.6
2.7
Embodied Carbon, kg CO2/kg material 23
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
6.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 220
5.9 to 150
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
50
Strength to Weight: Axial, points 38
9.1 to 17
Strength to Weight: Bending, points 50
16 to 25
Thermal Diffusivity, mm2/s 41
93
Thermal Shock Resistance, points 14
4.0 to 7.6

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
99.3 to 100
Copper (Cu), % 0 to 0.060
0 to 0.1
Iron (Fe), % 0
0 to 0.7
Magnesium (Mg), % 92.8 to 95.8
0 to 0.050
Manganese (Mn), % 0.2 to 0.5
0 to 0.050
Nickel (Ni), % 0 to 0.030
0
Silicon (Si), % 0.5 to 1.5
0 to 0.7
Zinc (Zn), % 0 to 0.12
0 to 0.050