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ASTM B596 Au-Cu vs. EN 1.3961 Alloy

ASTM B596 Au-Cu belongs to the otherwise unclassified metals classification, while EN 1.3961 alloy belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ASTM B596 Au-Cu and the bottom bar is EN 1.3961 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 4.3 to 17
31
Poisson's Ratio 0.41
0.3
Shear Modulus, GPa 36
72
Shear Strength, MPa 280 to 360
300
Tensile Strength: Ultimate (UTS), MPa 450 to 620
450

Thermal Properties

Latent Heat of Fusion, J/g 77
270
Melting Completion (Liquidus), °C 1060
1430
Melting Onset (Solidus), °C 930
1390
Specific Heat Capacity, J/kg-K 150
460
Thermal Expansion, µm/m-K 14
1.3

Otherwise Unclassified Properties

Density, g/cm3 18
8.2

Common Calculations

Stiffness to Weight: Axial, points 3.1
13
Stiffness to Weight: Bending, points 8.5
23
Strength to Weight: Axial, points 6.8 to 9.4
15
Strength to Weight: Bending, points 7.1 to 8.8
16
Thermal Shock Resistance, points 22 to 30
130

Alloy Composition


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Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 9.0 to 11
0
Gold (Au), % 89 to 91
0
Iron (Fe), % 0
60.7 to 65
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
35 to 37
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Residuals, % 0 to 0.4
0