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R60705 Alloy vs. ASTM B477 Au-Ni-Ag

Both R60705 alloy and ASTM B477 Au-Ni-Ag are otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is R60705 alloy and the bottom bar is ASTM B477 Au-Ni-Ag.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
95
Elongation at Break, % 18
5.5 to 11
Poisson's Ratio 0.34
0.41
Shear Modulus, GPa 37
34
Tensile Strength: Ultimate (UTS), MPa 540
310 to 550

Thermal Properties

Latent Heat of Fusion, J/g 250
80
Specific Heat Capacity, J/kg-K 270
160
Thermal Expansion, µm/m-K 6.3
15

Otherwise Unclassified Properties

Density, g/cm3 6.7
17

Common Calculations

Stiffness to Weight: Axial, points 8.1
3.1
Stiffness to Weight: Bending, points 23
8.9
Strength to Weight: Axial, points 22
5.0 to 9.0
Strength to Weight: Bending, points 22
6.0 to 8.8
Thermal Shock Resistance, points 63
16 to 28

Alloy Composition

Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 0 to 0.2
0
Gold (Au), % 0
74.2 to 75.8
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
0
Nickel (Ni), % 0
2.6 to 3.4
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.18
0
Silver (Ag), % 0
21.4 to 22.6
Zirconium (Zr), % 91 to 98
0
Residuals, % 0
0 to 0.3