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AWS BMg-1 vs. 4007 Aluminum

AWS BMg-1 belongs to the magnesium alloys classification, while 4007 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS BMg-1 and the bottom bar is 4007 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
71
Elongation at Break, % 3.8
5.1 to 23
Fatigue Strength, MPa 72
46 to 88
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Shear Strength, MPa 100
80 to 90
Tensile Strength: Ultimate (UTS), MPa 180
130 to 160
Tensile Strength: Yield (Proof), MPa 110
50 to 120

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
650
Melting Onset (Solidus), °C 440
590
Specific Heat Capacity, J/kg-K 980
890
Thermal Conductivity, W/m-K 76
170
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
42
Electrical Conductivity: Equal Weight (Specific), % IACS 55
140

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.8
2.8
Embodied Carbon, kg CO2/kg material 22
8.1
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
7.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 120
18 to 110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 66
49
Strength to Weight: Axial, points 27
12 to 15
Strength to Weight: Bending, points 39
20 to 23
Thermal Diffusivity, mm2/s 43
67
Thermal Shock Resistance, points 10
5.5 to 6.7

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
94.1 to 97.6
Beryllium (Be), % 0.00020 to 0.00080
0
Chromium (Cr), % 0
0.050 to 0.25
Cobalt (Co), % 0
0 to 0.050
Copper (Cu), % 0 to 0.050
0 to 0.2
Iron (Fe), % 0 to 0.0050
0.4 to 1.0
Magnesium (Mg), % 86.1 to 89.8
0 to 0.2
Manganese (Mn), % 0.15 to 1.5
0.8 to 1.5
Nickel (Ni), % 0 to 0.0050
0.15 to 0.7
Silicon (Si), % 0 to 0.050
1.0 to 1.7
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 1.7 to 2.3
0 to 0.1
Residuals, % 0 to 0.3
0 to 0.15