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ASTM B477 Au-Ni-Ag vs. EN 1.3961 Alloy

ASTM B477 Au-Ni-Ag 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 (10, 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 B477 Au-Ni-Ag and the bottom bar is EN 1.3961 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
190
Elongation at Break, % 5.5 to 11
31
Poisson's Ratio 0.41
0.3
Shear Modulus, GPa 34
72
Shear Strength, MPa 190 to 320
300
Tensile Strength: Ultimate (UTS), MPa 310 to 550
450

Thermal Properties

Latent Heat of Fusion, J/g 80
270
Melting Completion (Liquidus), °C 1010
1430
Melting Onset (Solidus), °C 930
1390
Specific Heat Capacity, J/kg-K 160
460
Thermal Expansion, µm/m-K 15
1.3

Otherwise Unclassified Properties

Density, g/cm3 17
8.2

Common Calculations

Stiffness to Weight: Axial, points 3.1
13
Stiffness to Weight: Bending, points 8.9
23
Strength to Weight: Axial, points 5.0 to 9.0
15
Strength to Weight: Bending, points 6.0 to 8.8
16
Thermal Shock Resistance, points 16 to 28
130

Alloy Composition

Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0 to 0.25
Gold (Au), % 74.2 to 75.8
0
Iron (Fe), % 0
60.7 to 65
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 2.6 to 3.4
35 to 37
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 21.4 to 22.6
0
Sulfur (S), % 0
0 to 0.020
Residuals, % 0 to 0.3
0