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C61800 Bronze vs. C75200 Nickel Silver

Both C61800 bronze and C75200 nickel silver are copper alloys. They have 65% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C61800 bronze and the bottom bar is C75200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.34
0.32
Rockwell B Hardness 89
63 to 93
Shear Modulus, GPa 44
47
Tensile Strength: Ultimate (UTS), MPa 740
400 to 660

Thermal Properties

Latent Heat of Fusion, J/g 230
210
Maximum Temperature: Mechanical, °C 220
200
Melting Completion (Liquidus), °C 1050
1110
Melting Onset (Solidus), °C 1040
1070
Specific Heat Capacity, J/kg-K 440
400
Thermal Conductivity, W/m-K 64
33
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 14
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
33
Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 3.1
4.1
Embodied Energy, MJ/kg 52
62
Embodied Water, L/kg 390
300

Common Calculations

Stiffness to Weight: Axial, points 7.5
8.0
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 25
13 to 21
Strength to Weight: Bending, points 22
14 to 20
Thermal Diffusivity, mm2/s 18
9.8
Thermal Shock Resistance, points 26
13 to 22

Alloy Composition

Aluminum (Al), % 8.5 to 11
0
Copper (Cu), % 86.9 to 91
63.5 to 66.5
Iron (Fe), % 0.5 to 1.5
0 to 0.25
Lead (Pb), % 0 to 0.020
0 to 0.050
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
16.5 to 19.5
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.020
12.7 to 20
Residuals, % 0
0 to 0.5