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AWS BMg-1 vs. C77400 Nickel Silver

AWS BMg-1 belongs to the magnesium alloys classification, while C77400 nickel silver belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 C77400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
110
Elongation at Break, % 3.8
25
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 18
42
Shear Strength, MPa 100
360
Tensile Strength: Ultimate (UTS), MPa 180
570
Tensile Strength: Yield (Proof), MPa 110
250

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 600
810
Melting Onset (Solidus), °C 440
770
Specific Heat Capacity, J/kg-K 980
390
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
27
Electrical Conductivity: Equal Weight (Specific), % IACS 55
31

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 1.8
7.9
Embodied Carbon, kg CO2/kg material 22
3.5
Embodied Energy, MJ/kg 160
57
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
120
Resilience: Unit (Modulus of Resilience), kJ/m3 120
290
Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 66
20
Strength to Weight: Axial, points 27
20
Strength to Weight: Bending, points 39
19
Thermal Shock Resistance, points 10
18

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Beryllium (Be), % 0.00020 to 0.00080
0
Copper (Cu), % 0 to 0.050
43 to 47
Iron (Fe), % 0 to 0.0050
0
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0
Nickel (Ni), % 0 to 0.0050
9.0 to 11
Silicon (Si), % 0 to 0.050
0
Zinc (Zn), % 1.7 to 2.3
41.3 to 48
Residuals, % 0
0 to 0.5