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ASTM B596 Au-Cu vs. R04295 Alloy

Both ASTM B596 Au-Cu and R04295 alloy are otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ASTM B596 Au-Cu and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 4.3 to 17
22
Poisson's Ratio 0.41
0.38
Shear Modulus, GPa 36
37
Tensile Strength: Ultimate (UTS), MPa 450 to 620
410

Thermal Properties

Latent Heat of Fusion, J/g 77
300
Specific Heat Capacity, J/kg-K 150
260
Thermal Expansion, µm/m-K 14
7.2

Otherwise Unclassified Properties

Density, g/cm3 18
9.0

Common Calculations

Stiffness to Weight: Axial, points 3.1
6.3
Stiffness to Weight: Bending, points 8.5
17
Strength to Weight: Axial, points 6.8 to 9.4
13
Strength to Weight: Bending, points 7.1 to 8.8
14
Thermal Shock Resistance, points 22 to 30
40

Alloy Composition


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Carbon (C), % 0
0 to 0.015
Copper (Cu), % 9.0 to 11
0
Gold (Au), % 89 to 91
0
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0
0 to 0.0015
Niobium (Nb), % 0
85.9 to 90.3
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.7 to 1.3
Tungsten (W), % 0
0 to 0.5
Zirconium (Zr), % 0
0 to 0.7
Residuals, % 0 to 0.4
0