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ASTM B541 Gold vs. AWS ERNiCrMo-2

ASTM B541 gold belongs to the otherwise unclassified metals classification, while AWS ERNiCrMo-2 belongs to the nickel alloys. There are 17 material properties with values for both materials. Properties with values for just one material (12, 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 B541 gold and the bottom bar is AWS ERNiCrMo-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Poisson's Ratio 0.4
0.28
Shear Modulus, GPa 38
81
Tensile Strength: Ultimate (UTS), MPa 670 to 1180
750

Thermal Properties

Latent Heat of Fusion, J/g 90
320
Melting Completion (Liquidus), °C 1110
1460
Melting Onset (Solidus), °C 930
1410
Specific Heat Capacity, J/kg-K 170
450
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7 to 12
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0 to 6.2
1.6

Otherwise Unclassified Properties

Density, g/cm3 17
8.4

Common Calculations

Stiffness to Weight: Axial, points 3.4
14
Stiffness to Weight: Bending, points 9.0
23
Strength to Weight: Axial, points 11 to 19
25
Strength to Weight: Bending, points 9.8 to 14
22
Thermal Shock Resistance, points 36 to 63
20

Alloy Composition

Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
20.5 to 23
Cobalt (Co), % 0
0.5 to 2.5
Copper (Cu), % 13.5 to 15.5
0 to 0.5
Gold (Au), % 70.5 to 72.5
0
Iron (Fe), % 0
17 to 20
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0
40.3 to 53.8
Phosphorus (P), % 0
0 to 0.040
Platinum (Pt), % 8.0 to 9.0
0
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 4.0 to 5.0
0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
0.2 to 1.0
Zinc (Zn), % 0.7 to 1.3
0
Residuals, % 0
0 to 0.5