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AWS BMg-1 vs. Type 1 Magnetic Alloy

AWS BMg-1 belongs to the magnesium alloys classification, while Type 1 magnetic alloy belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS BMg-1 and the bottom bar is Type 1 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
190
Elongation at Break, % 3.8
4.0 to 38
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 18
72
Tensile Strength: Ultimate (UTS), MPa 180
500 to 830
Tensile Strength: Yield (Proof), MPa 110
220 to 790

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Melting Completion (Liquidus), °C 600
1420
Melting Onset (Solidus), °C 440
1370
Specific Heat Capacity, J/kg-K 980
460
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 55
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.8
8.3
Embodied Carbon, kg CO2/kg material 22
5.6
Embodied Energy, MJ/kg 160
77
Embodied Water, L/kg 980
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
33 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 120
130 to 1690
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 66
23
Strength to Weight: Axial, points 27
17 to 28
Strength to Weight: Bending, points 39
17 to 24
Thermal Shock Resistance, points 10
16 to 26

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.0050
50.7 to 56.5
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0 to 0.8
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0 to 0.0050
43.5 to 46.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.050
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0