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AWS BMg-1 vs. 6351 Aluminum

AWS BMg-1 belongs to the magnesium alloys classification, while 6351 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AWS BMg-1 and the bottom bar is 6351 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
69
Elongation at Break, % 3.8
7.8 to 18
Fatigue Strength, MPa 72
79 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
26
Shear Strength, MPa 100
84 to 200
Tensile Strength: Ultimate (UTS), MPa 180
140 to 310
Tensile Strength: Yield (Proof), MPa 110
95 to 270

Thermal Properties

Latent Heat of Fusion, J/g 350
410
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 600
650
Melting Onset (Solidus), °C 440
570
Specific Heat Capacity, J/kg-K 980
900
Thermal Conductivity, W/m-K 76
180
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
46
Electrical Conductivity: Equal Weight (Specific), % IACS 55
150

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 1.8
2.7
Embodied Carbon, kg CO2/kg material 22
8.3
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
20 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 120
65 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 66
50
Strength to Weight: Axial, points 27
14 to 32
Strength to Weight: Bending, points 39
22 to 38
Thermal Diffusivity, mm2/s 43
72
Thermal Shock Resistance, points 10
6.1 to 14

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
96 to 98.5
Beryllium (Be), % 0.00020 to 0.00080
0
Copper (Cu), % 0 to 0.050
0 to 0.1
Iron (Fe), % 0 to 0.0050
0 to 0.5
Magnesium (Mg), % 86.1 to 89.8
0.4 to 0.8
Manganese (Mn), % 0.15 to 1.5
0.4 to 0.8
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.050
0.7 to 1.3
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 1.7 to 2.3
0 to 0.2
Residuals, % 0
0 to 0.15