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ASTM B780 Alloy vs. AWS BVAu-8

Both ASTM B780 alloy and AWS BVAu-8 are otherwise unclassified metals. There are 13 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM B780 alloy and the bottom bar is AWS BVAu-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
100
Poisson's Ratio 0.36
0.42
Shear Modulus, GPa 30
36
Tensile Strength: Ultimate (UTS), MPa 330 to 590
140

Thermal Properties

Latent Heat of Fusion, J/g 140
71
Specific Heat Capacity, J/kg-K 270
140
Thermal Expansion, µm/m-K 18
14

Otherwise Unclassified Properties

Density, g/cm3 10
19

Common Calculations

Stiffness to Weight: Axial, points 4.5
3.0
Stiffness to Weight: Bending, points 14
8.3
Strength to Weight: Axial, points 9.1 to 16
2.1
Strength to Weight: Bending, points 11 to 15
3.2
Thermal Shock Resistance, points 16 to 29
7.1

Alloy Composition

Cadmium (Cd), % 0 to 0.050
0 to 0.0010
Carbon (C), % 0
0 to 0.0050
Copper (Cu), % 23.5 to 25.7
0
Gold (Au), % 0
91 to 93
Iron (Fe), % 0 to 0.050
0
Lead (Pb), % 0 to 0.030
0 to 0.0020
Nickel (Ni), % 0.35 to 0.65
0
Palladium (Pd), % 0
7.0 to 9.0
Phosphorus (P), % 0
0 to 0.0020
Silver (Ag), % 74 to 76
0
Zinc (Zn), % 0 to 0.060
0 to 0.0010