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AWS BVAu-2 vs. ASTM B541 Gold

Both AWS BVAu-2 and ASTM B541 gold are otherwise unclassified metals. They have 86% of their average alloy composition in common. There are 15 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 AWS BVAu-2 and the bottom bar is ASTM B541 gold.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Poisson's Ratio 0.4
0.4
Shear Modulus, GPa 36
38
Tensile Strength: Ultimate (UTS), MPa 150
670 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 92
90
Melting Completion (Liquidus), °C 890
1110
Melting Onset (Solidus), °C 890
930
Specific Heat Capacity, J/kg-K 180
170
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Density, g/cm3 17
17

Common Calculations

Stiffness to Weight: Axial, points 3.3
3.4
Stiffness to Weight: Bending, points 9.1
9.0
Strength to Weight: Axial, points 2.4
11 to 19
Strength to Weight: Bending, points 3.6
9.8 to 14
Thermal Shock Resistance, points 7.1
36 to 63

Alloy Composition


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Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 19.5 to 20.5
13.5 to 15.5
Gold (Au), % 79.5 to 80.5
70.5 to 72.5
Lead (Pb), % 0 to 0.0020
0
Phosphorus (P), % 0 to 0.0020
0
Platinum (Pt), % 0
8.0 to 9.0
Silver (Ag), % 0
4.0 to 5.0
Zinc (Zn), % 0 to 0.0010
0.7 to 1.3
Residuals, % 0
0 to 0.4