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R60704 Alloy vs. ASTM B541 Gold

Both R60704 alloy and ASTM B541 gold are otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (9, 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 R60704 alloy and the bottom bar is ASTM B541 gold.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
110
Elongation at Break, % 16
6.0 to 14
Poisson's Ratio 0.34
0.4
Shear Modulus, GPa 36
38
Tensile Strength: Ultimate (UTS), MPa 470
670 to 1180
Tensile Strength: Yield (Proof), MPa 270
480 to 900

Thermal Properties

Latent Heat of Fusion, J/g 240
90
Specific Heat Capacity, J/kg-K 270
170
Thermal Expansion, µm/m-K 6.0
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
65 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 370
1090 to 3830
Stiffness to Weight: Axial, points 8.1
3.4
Stiffness to Weight: Bending, points 23
9.0
Strength to Weight: Axial, points 20
11 to 19
Strength to Weight: Bending, points 20
9.8 to 14
Thermal Shock Resistance, points 58
36 to 63

Alloy Composition

Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 0.2 to 0.4
0
Copper (Cu), % 0
13.5 to 15.5
Gold (Au), % 0
70.5 to 72.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0.2 to 0.4
0
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.18
0
Platinum (Pt), % 0
8.0 to 9.0
Silver (Ag), % 0
4.0 to 5.0
Tin (Sn), % 1.0 to 2.0
0
Zinc (Zn), % 0
0.7 to 1.3
Zirconium (Zr), % 93 to 98.8
0
Residuals, % 0
0 to 0.4