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1235 Aluminum vs. M1A Magnesium

1235 aluminum belongs to the aluminum alloys classification, while M1A magnesium belongs to the magnesium alloys.

For each property being compared, the top bar is 1235 aluminum and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
45
Elongation at Break, % 28 to 34
5.5
Fatigue Strength, MPa 23 to 58
88
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 52 to 56
120
Tensile Strength: Ultimate (UTS), MPa 80 to 84
230
Tensile Strength: Yield (Proof), MPa 23 to 57
130

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 170
95
Melting Completion (Liquidus), °C 640
610
Melting Onset (Solidus), °C 640
580
Specific Heat Capacity, J/kg-K 900
990
Thermal Conductivity, W/m-K 230
150
Thermal Expansion, µm/m-K 23
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
35
Electrical Conductivity: Equal Weight (Specific), % IACS 200
190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.7
Embodied Carbon, kg CO2/kg material 8.3
24
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 1190
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
11
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 24
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
71
Strength to Weight: Axial, points 8.2 to 8.6
38
Strength to Weight: Bending, points 15 to 16
49
Thermal Diffusivity, mm2/s 93
88
Thermal Shock Resistance, points 3.6 to 3.7
13

Alloy Composition

Aluminum (Al), % 99.35 to 100
0
Calcium (Ca), % 0
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.050
Iron (Fe), % 0 to 0.65
0
Magnesium (Mg), % 0 to 0.050
97.2 to 98.8
Manganese (Mn), % 0 to 0.050
1.2 to 2.0
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0 to 0.65
0 to 0.1
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.3