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AWS BMg-1 vs. EN AC-21200 Aluminum

AWS BMg-1 belongs to the magnesium alloys classification, while EN AC-21200 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS BMg-1 and the bottom bar is EN AC-21200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
71
Elongation at Break, % 3.8
3.9 to 6.2
Fatigue Strength, MPa 72
110 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
27
Tensile Strength: Ultimate (UTS), MPa 180
410 to 440
Tensile Strength: Yield (Proof), MPa 110
270 to 360

Thermal Properties

Latent Heat of Fusion, J/g 350
390
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
660
Melting Onset (Solidus), °C 440
550
Specific Heat Capacity, J/kg-K 980
880
Thermal Conductivity, W/m-K 76
130
Thermal Expansion, µm/m-K 26
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
34
Electrical Conductivity: Equal Weight (Specific), % IACS 55
100

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.8
3.0
Embodied Carbon, kg CO2/kg material 22
8.0
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 980
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 120
500 to 930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 66
46
Strength to Weight: Axial, points 27
38 to 40
Strength to Weight: Bending, points 39
41 to 43
Thermal Diffusivity, mm2/s 43
49
Thermal Shock Resistance, points 10
18 to 19

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
93.3 to 95.7
Beryllium (Be), % 0.00020 to 0.00080
0
Copper (Cu), % 0 to 0.050
4.0 to 5.0
Iron (Fe), % 0 to 0.0050
0 to 0.2
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 86.1 to 89.8
0.15 to 0.5
Manganese (Mn), % 0.15 to 1.5
0.2 to 0.5
Nickel (Ni), % 0 to 0.0050
0 to 0.050
Silicon (Si), % 0 to 0.050
0 to 0.1
Tin (Sn), % 0
0 to 0.030
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 0.1