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C67600 Bronze vs. ASTM B477 Au-Ni-Ag

C67600 bronze belongs to the copper alloys classification, while ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (11, 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 C67600 bronze and the bottom bar is ASTM B477 Au-Ni-Ag.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
95
Elongation at Break, % 13 to 33
5.5 to 11
Poisson's Ratio 0.31
0.41
Shear Modulus, GPa 40
34
Shear Strength, MPa 270 to 350
190 to 320
Tensile Strength: Ultimate (UTS), MPa 430 to 570
310 to 550

Thermal Properties

Latent Heat of Fusion, J/g 170
80
Melting Completion (Liquidus), °C 890
1010
Melting Onset (Solidus), °C 870
930
Specific Heat Capacity, J/kg-K 380
160
Thermal Expansion, µm/m-K 21
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
14
Electrical Conductivity: Equal Weight (Specific), % IACS 27
7.5

Otherwise Unclassified Properties

Density, g/cm3 8.0
17

Common Calculations

Stiffness to Weight: Axial, points 7.2
3.1
Stiffness to Weight: Bending, points 20
8.9
Strength to Weight: Axial, points 15 to 20
5.0 to 9.0
Strength to Weight: Bending, points 16 to 19
6.0 to 8.8
Thermal Shock Resistance, points 14 to 19
16 to 28

Alloy Composition

Copper (Cu), % 57 to 60
0
Gold (Au), % 0
74.2 to 75.8
Iron (Fe), % 0.4 to 1.3
0
Lead (Pb), % 0.5 to 1.0
0
Manganese (Mn), % 0.050 to 0.5
0
Nickel (Ni), % 0
2.6 to 3.4
Silver (Ag), % 0
21.4 to 22.6
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 35.2 to 41.6
0
Residuals, % 0
0 to 0.3