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ASTM B477 Au-Ni-Ag vs. C23000 Brass

ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while C23000 brass belongs to the copper alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is ASTM B477 Au-Ni-Ag and the bottom bar is C23000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 95
110
Elongation at Break, % 5.5 to 11
2.9 to 47
Poisson's Ratio 0.41
0.33
Shear Modulus, GPa 34
42
Shear Strength, MPa 190 to 320
220 to 340
Tensile Strength: Ultimate (UTS), MPa 310 to 550
280 to 590

Thermal Properties

Latent Heat of Fusion, J/g 80
190
Melting Completion (Liquidus), °C 1010
1030
Melting Onset (Solidus), °C 930
990
Specific Heat Capacity, J/kg-K 160
390
Thermal Expansion, µm/m-K 15
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
37
Electrical Conductivity: Equal Weight (Specific), % IACS 7.5
39

Otherwise Unclassified Properties

Density, g/cm3 17
8.6

Common Calculations

Stiffness to Weight: Axial, points 3.1
7.2
Stiffness to Weight: Bending, points 8.9
19
Strength to Weight: Axial, points 5.0 to 9.0
8.9 to 19
Strength to Weight: Bending, points 6.0 to 8.8
11 to 18
Thermal Shock Resistance, points 16 to 28
9.4 to 20

Alloy Composition

Copper (Cu), % 0
84 to 86
Gold (Au), % 74.2 to 75.8
0
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Nickel (Ni), % 2.6 to 3.4
0
Silver (Ag), % 21.4 to 22.6
0
Zinc (Zn), % 0
13.7 to 16
Residuals, % 0
0 to 0.2