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AWS BMg-1 vs. AWS BNi-11

AWS BMg-1 belongs to the magnesium alloys classification, while AWS BNi-11 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, 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 AWS BNi-11.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 18
74
Tensile Strength: Ultimate (UTS), MPa 180
600

Thermal Properties

Brazing Temperature, °C 600 to 630
1150 to 1200
Latent Heat of Fusion, J/g 350
340
Melting Completion (Liquidus), °C 600
1100
Melting Onset (Solidus), °C 440
970
Specific Heat Capacity, J/kg-K 980
450
Thermal Expansion, µm/m-K 26
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
75
Density, g/cm3 1.8
9.1
Embodied Carbon, kg CO2/kg material 22
11
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 980
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 66
21
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 39
17
Thermal Shock Resistance, points 10
20

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0 to 0.050
Beryllium (Be), % 0.00020 to 0.00080
0
Boron (B), % 0
2.2 to 3.1
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
9.0 to 11.8
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
2.5 to 4.0
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0
Nickel (Ni), % 0 to 0.0050
62.9 to 71.2
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.050
3.4 to 4.3
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Tungsten (W), % 0
11.5 to 12.8
Zinc (Zn), % 1.7 to 2.3
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0 to 0.3
0 to 0.5