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AWS BAu-4 vs. CC497K Bronze

AWS BAu-4 belongs to the otherwise unclassified metals classification, while CC497K bronze belongs to the copper alloys. There are 15 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is AWS BAu-4 and the bottom bar is CC497K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
93
Poisson's Ratio 0.4
0.36
Shear Modulus, GPa 41
34
Tensile Strength: Ultimate (UTS), MPa 200
190

Thermal Properties

Latent Heat of Fusion, J/g 100
160
Melting Completion (Liquidus), °C 950
870
Melting Onset (Solidus), °C 950
800
Specific Heat Capacity, J/kg-K 190
330
Thermal Expansion, µm/m-K 14
20

Otherwise Unclassified Properties

Density, g/cm3 17
9.3

Common Calculations

Stiffness to Weight: Axial, points 3.6
5.5
Stiffness to Weight: Bending, points 9.3
16
Strength to Weight: Axial, points 3.2
5.6
Strength to Weight: Bending, points 4.4
7.8
Thermal Shock Resistance, points 9.2
7.2

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.75
Copper (Cu), % 0
67.5 to 77.5
Gold (Au), % 81.5 to 82.5
0
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
18 to 23
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 17.4 to 18.5
0.5 to 2.5
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 0
0 to 2.0
Residuals, % 0 to 0.15
0