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ASTM B477 Au-Ni-Ag vs. Class 4 Tungsten

Both ASTM B477 Au-Ni-Ag and class 4 tungsten are otherwise unclassified metals. There are 16 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 class 4 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
270
Elongation at Break, % 5.5 to 11
2.3
Poisson's Ratio 0.41
0.28
Shear Modulus, GPa 34
110
Tensile Strength: Ultimate (UTS), MPa 310 to 550
790

Thermal Properties

Latent Heat of Fusion, J/g 80
170
Specific Heat Capacity, J/kg-K 160
130
Thermal Expansion, µm/m-K 15
4.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
17
Electrical Conductivity: Equal Weight (Specific), % IACS 7.5
9.7

Otherwise Unclassified Properties

Density, g/cm3 17
16

Common Calculations

Stiffness to Weight: Axial, points 3.1
9.6
Stiffness to Weight: Bending, points 8.9
14
Strength to Weight: Axial, points 5.0 to 9.0
14
Strength to Weight: Bending, points 6.0 to 8.8
12
Thermal Shock Resistance, points 16 to 28
46

Alloy Composition

Gold (Au), % 74.2 to 75.8
0
Nickel (Ni), % 2.6 to 3.4
0
Silver (Ag), % 21.4 to 22.6
0
Tungsten (W), % 0
97
Residuals, % 0
3.0