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ASTM B477 Au-Ni-Ag vs. CC496K Bronze

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while CC496K bronze belongs to the copper alloys. There are 18 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 CC496K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
97
Elongation at Break, % 5.5 to 11
8.6
Poisson's Ratio 0.41
0.35
Shear Modulus, GPa 34
36
Tensile Strength: Ultimate (UTS), MPa 310 to 550
210

Thermal Properties

Latent Heat of Fusion, J/g 80
170
Melting Completion (Liquidus), °C 1010
900
Melting Onset (Solidus), °C 930
820
Specific Heat Capacity, J/kg-K 160
340
Thermal Expansion, µm/m-K 15
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
11
Electrical Conductivity: Equal Weight (Specific), % IACS 7.5
11

Otherwise Unclassified Properties

Density, g/cm3 17
9.2

Common Calculations

Stiffness to Weight: Axial, points 3.1
5.9
Stiffness to Weight: Bending, points 8.9
17
Strength to Weight: Axial, points 5.0 to 9.0
6.5
Strength to Weight: Bending, points 6.0 to 8.8
8.6
Thermal Shock Resistance, points 16 to 28
8.1

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
Copper (Cu), % 0
72 to 79.5
Gold (Au), % 74.2 to 75.8
0
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
13 to 17
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 2.6 to 3.4
0.5 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0
0 to 0.010
Silver (Ag), % 21.4 to 22.6
0
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
6.0 to 8.0
Zinc (Zn), % 0
0 to 2.0
Residuals, % 0 to 0.3
0