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AWS BMg-1 vs. CC494K Bronze

AWS BMg-1 belongs to the magnesium alloys classification, while CC494K bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 CC494K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
100
Elongation at Break, % 3.8
7.6
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 18
39
Tensile Strength: Ultimate (UTS), MPa 180
210
Tensile Strength: Yield (Proof), MPa 110
94

Thermal Properties

Latent Heat of Fusion, J/g 350
180
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 600
970
Melting Onset (Solidus), °C 440
890
Specific Heat Capacity, J/kg-K 980
360
Thermal Conductivity, W/m-K 76
63
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
16
Electrical Conductivity: Equal Weight (Specific), % IACS 55
16

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.8
9.1
Embodied Carbon, kg CO2/kg material 22
3.1
Embodied Energy, MJ/kg 160
50
Embodied Water, L/kg 980
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
13
Resilience: Unit (Modulus of Resilience), kJ/m3 120
43
Stiffness to Weight: Axial, points 14
6.4
Stiffness to Weight: Bending, points 66
17
Strength to Weight: Axial, points 27
6.5
Strength to Weight: Bending, points 39
8.8
Thermal Diffusivity, mm2/s 43
19
Thermal Shock Resistance, points 10
7.8

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
Beryllium (Be), % 0.00020 to 0.00080
0
Copper (Cu), % 0 to 0.050
78 to 87
Iron (Fe), % 0 to 0.0050
0 to 0.25
Lead (Pb), % 0
8.0 to 10
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0 to 0.2
Nickel (Ni), % 0 to 0.0050
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.050
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 1.7 to 2.3
0 to 2.0
Residuals, % 0 to 0.3
0