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C67300 Bronze vs. C77000 Nickel Silver

Both C67300 bronze and C77000 nickel silver are copper alloys. They have 82% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C67300 bronze and the bottom bar is C77000 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.31
Rockwell B Hardness 91
52 to 99
Shear Modulus, GPa 41
46
Tensile Strength: Ultimate (UTS), MPa 500
420 to 800

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 130
180
Melting Completion (Liquidus), °C 870
1050
Melting Onset (Solidus), °C 830
1000
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 95
29
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 25
6.0

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.7
4.1
Embodied Energy, MJ/kg 46
63
Embodied Water, L/kg 320
300

Common Calculations

Stiffness to Weight: Axial, points 7.4
8.1
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 17
14 to 27
Strength to Weight: Bending, points 17
15 to 23
Thermal Diffusivity, mm2/s 30
8.8
Thermal Shock Resistance, points 16
15 to 28

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Copper (Cu), % 58 to 63
53.5 to 56.5
Iron (Fe), % 0 to 0.5
0 to 0.25
Lead (Pb), % 0.4 to 3.0
0 to 0.050
Manganese (Mn), % 2.0 to 3.5
0 to 0.5
Nickel (Ni), % 0 to 0.25
16.5 to 19.5
Silicon (Si), % 0.5 to 1.5
0
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 27.2 to 39.1
22.7 to 30
Residuals, % 0
0 to 0.5