ASTM B596 Au-Cu vs. AWS BAu-1

Both ASTM B596 Au-Cu and AWS BAu-1 are otherwise unclassified metals. They have 48% of their average alloy composition in common. There are 15 material properties with values for both materials. Properties with values for just one material (5, 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 BAu-1.

ASTM B596 Gold-Copper Electrical Contact Alloy AWS BAu-1 (P00375) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		110

Poisson's Ratio		0.41
Poisson's Ratio		0.37

Shear Modulus, GPa		36
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		450 to 620
Tensile Strength: Ultimate (UTS), MPa		210

Thermal Properties

Latent Heat of Fusion, J/g		77
Latent Heat of Fusion, J/g		150

Melting Completion (Liquidus), °C		1060
Melting Completion (Liquidus), °C		1020

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		990

Specific Heat Capacity, J/kg-K		150
Specific Heat Capacity, J/kg-K		290

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		16

Otherwise Unclassified Properties

Density, g/cm³		18
Density, g/cm³		13

Common Calculations

Stiffness to Weight: Axial, points		3.1
Stiffness to Weight: Axial, points		4.7

Stiffness to Weight: Bending, points		8.5
Stiffness to Weight: Bending, points		12

Strength to Weight: Axial, points		6.8 to 9.4
Strength to Weight: Axial, points		4.5

Strength to Weight: Bending, points		7.1 to 8.8
Strength to Weight: Bending, points		6.1

Thermal Shock Resistance, points		22 to 30
Thermal Shock Resistance, points		8.5

Alloy Composition

Copper (Cu), %		9.0 to 11
Copper (Cu), %		61.9 to 63

Gold (Au), %		89 to 91
Gold (Au), %		37 to 38

Residuals, %		0
Residuals, %		0 to 0.15