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ASTM B596 Au-Cu vs. AWS BAg-7

Both ASTM B596 Au-Cu and AWS BAg-7 are otherwise unclassified metals. There are 15 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 B596 Au-Cu and the bottom bar is AWS BAg-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
83
Poisson's Ratio 0.41
0.34
Shear Modulus, GPa 36
31
Tensile Strength: Ultimate (UTS), MPa 450 to 620
150

Thermal Properties

Latent Heat of Fusion, J/g 77
130
Melting Completion (Liquidus), °C 1060
650
Melting Onset (Solidus), °C 930
620
Specific Heat Capacity, J/kg-K 150
290
Thermal Expansion, µm/m-K 14
20

Otherwise Unclassified Properties

Density, g/cm3 18
9.3

Common Calculations

Stiffness to Weight: Axial, points 3.1
4.9
Stiffness to Weight: Bending, points 8.5
16
Strength to Weight: Axial, points 6.8 to 9.4
4.5
Strength to Weight: Bending, points 7.1 to 8.8
6.7
Thermal Shock Resistance, points 22 to 30
6.4

Alloy Composition


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Copper (Cu), % 9.0 to 11
21 to 23
Gold (Au), % 89 to 91
0
Silver (Ag), % 0
55 to 57
Tin (Sn), % 0
4.5 to 5.5
Zinc (Zn), % 0
15 to 19
Residuals, % 0 to 0.4
0 to 0.15