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ASTM B596 Au-Cu vs. C94300 Bronze

ASTM B596 Au-Cu belongs to the otherwise unclassified metals classification, while C94300 bronze belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ASTM B596 Au-Cu and the bottom bar is C94300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
87
Elongation at Break, % 4.3 to 17
9.7
Poisson's Ratio 0.41
0.36
Shear Modulus, GPa 36
32
Tensile Strength: Ultimate (UTS), MPa 450 to 620
180

Thermal Properties

Latent Heat of Fusion, J/g 77
150
Melting Completion (Liquidus), °C 1060
820
Melting Onset (Solidus), °C 930
760
Specific Heat Capacity, J/kg-K 150
320
Thermal Expansion, µm/m-K 14
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
8.7

Otherwise Unclassified Properties

Density, g/cm3 18
9.3

Common Calculations

Stiffness to Weight: Axial, points 3.1
5.2
Stiffness to Weight: Bending, points 8.5
16
Strength to Weight: Axial, points 6.8 to 9.4
5.2
Strength to Weight: Bending, points 7.1 to 8.8
7.4
Thermal Shock Resistance, points 22 to 30
7.1

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.8
Copper (Cu), % 9.0 to 11
67 to 72
Gold (Au), % 89 to 91
0
Iron (Fe), % 0
0 to 0.15
Lead (Pb), % 0
23 to 27
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
4.5 to 6.0
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 1.0