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5086 Aluminum vs. AWS BMg-1

5086 aluminum belongs to the aluminum alloys classification, while AWS BMg-1 belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 5086 aluminum and the bottom bar is AWS BMg-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
47
Elongation at Break, % 1.7 to 20
3.8
Fatigue Strength, MPa 88 to 180
72
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
18
Shear Strength, MPa 160 to 230
100
Tensile Strength: Ultimate (UTS), MPa 270 to 390
180
Tensile Strength: Yield (Proof), MPa 110 to 320
110

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 190
130
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 590
440
Specific Heat Capacity, J/kg-K 900
980
Thermal Conductivity, W/m-K 130
76
Thermal Expansion, µm/m-K 24
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
11
Electrical Conductivity: Equal Weight (Specific), % IACS 100
55

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.8
Embodied Carbon, kg CO2/kg material 8.8
22
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.8 to 42
5.9
Resilience: Unit (Modulus of Resilience), kJ/m3 86 to 770
120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
66
Strength to Weight: Axial, points 28 to 40
27
Strength to Weight: Bending, points 34 to 44
39
Thermal Diffusivity, mm2/s 52
43
Thermal Shock Resistance, points 12 to 17
10

Alloy Composition

Aluminum (Al), % 93 to 96.3
8.3 to 9.7
Beryllium (Be), % 0
0.00020 to 0.00080
Chromium (Cr), % 0.050 to 0.25
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.0050
Magnesium (Mg), % 3.5 to 4.5
86.1 to 89.8
Manganese (Mn), % 0.2 to 0.7
0.15 to 1.5
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.4
0 to 0.050
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
1.7 to 2.3
Residuals, % 0
0 to 0.3