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ASTM B477 Au-Ni-Ag vs. C14181 Copper

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while C14181 copper belongs to the copper alloys. There are 16 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 ASTM B477 Au-Ni-Ag and the bottom bar is C14181 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
120
Elongation at Break, % 5.5 to 11
15
Poisson's Ratio 0.41
0.34
Shear Modulus, GPa 34
43
Tensile Strength: Ultimate (UTS), MPa 310 to 550
210

Thermal Properties

Latent Heat of Fusion, J/g 80
210
Melting Completion (Liquidus), °C 1010
1080
Melting Onset (Solidus), °C 930
1080
Specific Heat Capacity, J/kg-K 160
390
Thermal Expansion, µm/m-K 15
17

Otherwise Unclassified Properties

Density, g/cm3 17
9.0

Common Calculations

Stiffness to Weight: Axial, points 3.1
7.2
Stiffness to Weight: Bending, points 8.9
18
Strength to Weight: Axial, points 5.0 to 9.0
6.5
Strength to Weight: Bending, points 6.0 to 8.8
8.8
Thermal Shock Resistance, points 16 to 28
7.4

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0
0 to 0.0050
Copper (Cu), % 0
99.9 to 100
Gold (Au), % 74.2 to 75.8
0
Lead (Pb), % 0
0 to 0.0020
Nickel (Ni), % 2.6 to 3.4
0
Phosphorus (P), % 0
0 to 0.0020
Silver (Ag), % 21.4 to 22.6
0
Zinc (Zn), % 0
0 to 0.0020
Residuals, % 0 to 0.3
0