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AWS BMg-1 vs. Grade CX2MW Nickel

AWS BMg-1 belongs to the magnesium alloys classification, while grade CX2MW nickel belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 grade CX2MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
220
Elongation at Break, % 3.8
34
Fatigue Strength, MPa 72
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
84
Tensile Strength: Ultimate (UTS), MPa 180
620
Tensile Strength: Yield (Proof), MPa 110
350

Thermal Properties

Latent Heat of Fusion, J/g 350
330
Maximum Temperature: Mechanical, °C 130
980
Melting Completion (Liquidus), °C 600
1550
Melting Onset (Solidus), °C 440
1490
Specific Heat Capacity, J/kg-K 980
430
Thermal Conductivity, W/m-K 76
10
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 55
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
65
Density, g/cm3 1.8
8.9
Embodied Carbon, kg CO2/kg material 22
12
Embodied Energy, MJ/kg 160
170
Embodied Water, L/kg 980
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
180
Resilience: Unit (Modulus of Resilience), kJ/m3 120
290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 66
23
Strength to Weight: Axial, points 27
19
Strength to Weight: Bending, points 39
18
Thermal Diffusivity, mm2/s 43
2.7
Thermal Shock Resistance, points 10
17

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 0.020
Chromium (Cr), % 0
20 to 22.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
2.0 to 6.0
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
12.5 to 14.5
Nickel (Ni), % 0 to 0.0050
51.3 to 63
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.050
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35
Zinc (Zn), % 1.7 to 2.3
0
Residuals, % 0 to 0.3
0