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ASTM B477 Au-Ni-Ag vs. EN 2.4878 Nickel

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while EN 2.4878 nickel belongs to the nickel alloys. There are 17 material properties with values for both materials. Properties with values for just one material (14, 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 2.4878 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
200
Elongation at Break, % 5.5 to 11
13 to 17
Poisson's Ratio 0.41
0.29
Shear Modulus, GPa 34
78
Shear Strength, MPa 190 to 320
750 to 760
Tensile Strength: Ultimate (UTS), MPa 310 to 550
1210 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 80
330
Melting Completion (Liquidus), °C 1010
1370
Melting Onset (Solidus), °C 930
1320
Specific Heat Capacity, J/kg-K 160
460
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Density, g/cm3 17
8.3

Common Calculations

Stiffness to Weight: Axial, points 3.1
13
Stiffness to Weight: Bending, points 8.9
24
Strength to Weight: Axial, points 5.0 to 9.0
41 to 42
Strength to Weight: Bending, points 6.0 to 8.8
31
Thermal Shock Resistance, points 16 to 28
37 to 39

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0
0.010 to 0.015
Carbon (C), % 0
0.030 to 0.070
Chromium (Cr), % 0
23 to 25
Cobalt (Co), % 0
19 to 21
Copper (Cu), % 0
0 to 0.2
Gold (Au), % 74.2 to 75.8
0
Iron (Fe), % 0
0 to 1.0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 2.6 to 3.4
43.6 to 52.2
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 21.4 to 22.6
0
Sulfur (S), % 0
0 to 0.0070
Tantalum (Ta), % 0
0 to 0.050
Titanium (Ti), % 0
2.8 to 3.2
Zirconium (Zr), % 0
0.030 to 0.070
Residuals, % 0 to 0.3
0

Comparable Variants