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AM60B Magnesium vs. 2025 Aluminum

AM60B magnesium belongs to the magnesium alloys classification, while 2025 aluminum belongs to the aluminum alloys.

For each property being compared, the top bar is AM60B magnesium and the bottom bar is 2025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
110
Elastic (Young's, Tensile) Modulus, GPa 45
72
Elongation at Break, % 11
15
Fatigue Strength, MPa 96
130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
27
Shear Strength, MPa 140
240
Tensile Strength: Ultimate (UTS), MPa 230
400
Tensile Strength: Yield (Proof), MPa 130
260

Thermal Properties

Latent Heat of Fusion, J/g 350
400
Maximum Temperature: Mechanical, °C 120
190
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 540
520
Specific Heat Capacity, J/kg-K 1000
870
Thermal Conductivity, W/m-K 61
150
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
40
Electrical Conductivity: Equal Weight (Specific), % IACS 72
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.7
3.0
Embodied Carbon, kg CO2/kg material 23
7.9
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
55
Resilience: Unit (Modulus of Resilience), kJ/m3 190
450
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
46
Strength to Weight: Axial, points 38
37
Strength to Weight: Bending, points 50
40
Thermal Diffusivity, mm2/s 37
58
Thermal Shock Resistance, points 14
18

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
90.9 to 95.2
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.010
3.9 to 5.0
Iron (Fe), % 0 to 0.0050
0 to 1.0
Magnesium (Mg), % 92.6 to 94.3
0 to 0.050
Manganese (Mn), % 0.24 to 0.6
0.4 to 1.2
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0.5 to 1.2
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.22
0 to 0.25
Residuals, % 0
0 to 0.15