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AWS BAu-6 vs. C67400 Bronze

AWS BAu-6 belongs to the otherwise unclassified metals classification, while C67400 bronze belongs to the copper alloys. There are 15 material properties with values for both materials. Properties with values for just one material (16, 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 BAu-6 and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.39
0.31
Shear Modulus, GPa 43
41
Tensile Strength: Ultimate (UTS), MPa 190
480 to 610

Thermal Properties

Latent Heat of Fusion, J/g 120
190
Melting Completion (Liquidus), °C 1050
890
Melting Onset (Solidus), °C 1010
870
Specific Heat Capacity, J/kg-K 210
400
Thermal Expansion, µm/m-K 13
21

Otherwise Unclassified Properties

Density, g/cm3 16
7.9

Common Calculations

Stiffness to Weight: Axial, points 4.0
7.5
Stiffness to Weight: Bending, points 10
20
Strength to Weight: Axial, points 3.2
17 to 22
Strength to Weight: Bending, points 4.5
17 to 20
Thermal Shock Resistance, points 8.5
16 to 20

Alloy Composition

Aluminum (Al), % 0
0.5 to 2.0
Copper (Cu), % 0
57 to 60
Gold (Au), % 69.5 to 70.5
0
Iron (Fe), % 0
0 to 0.35
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 0
2.0 to 3.5
Nickel (Ni), % 21.5 to 22.5
0 to 0.25
Palladium (Pd), % 7.5 to 8.5
0
Silicon (Si), % 0
0.5 to 1.5
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0
31.1 to 40
Residuals, % 0
0 to 0.5