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ASTM B477 Au-Ni-Ag vs. C65500 Bronze

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while C65500 bronze belongs to the copper alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM B477 Au-Ni-Ag and the bottom bar is C65500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
120
Elongation at Break, % 5.5 to 11
4.0 to 70
Poisson's Ratio 0.41
0.34
Shear Modulus, GPa 34
43
Shear Strength, MPa 190 to 320
260 to 440
Tensile Strength: Ultimate (UTS), MPa 310 to 550
360 to 760

Thermal Properties

Latent Heat of Fusion, J/g 80
260
Melting Completion (Liquidus), °C 1010
1030
Melting Onset (Solidus), °C 930
970
Specific Heat Capacity, J/kg-K 160
400
Thermal Expansion, µm/m-K 15
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.5
7.3

Otherwise Unclassified Properties

Density, g/cm3 17
8.6

Common Calculations

Stiffness to Weight: Axial, points 3.1
7.5
Stiffness to Weight: Bending, points 8.9
19
Strength to Weight: Axial, points 5.0 to 9.0
12 to 24
Strength to Weight: Bending, points 6.0 to 8.8
13 to 21
Thermal Shock Resistance, points 16 to 28
12 to 26

Alloy Composition

Copper (Cu), % 0
91.5 to 96.7
Gold (Au), % 74.2 to 75.8
0
Iron (Fe), % 0
0 to 0.8
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
0.5 to 1.3
Nickel (Ni), % 2.6 to 3.4
0 to 0.6
Silicon (Si), % 0
2.8 to 3.8
Silver (Ag), % 21.4 to 22.6
0
Zinc (Zn), % 0
0 to 1.5
Residuals, % 0
0 to 0.5