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C63200 Bronze vs. C78200 Nickel Silver

Both C63200 bronze and C78200 nickel silver are copper alloys. They have 70% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C63200 bronze and the bottom bar is C78200 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 17 to 18
3.0 to 40
Poisson's Ratio 0.34
0.32
Rockwell B Hardness 88
65 to 90
Shear Modulus, GPa 44
43
Shear Strength, MPa 390 to 440
280 to 400
Tensile Strength: Ultimate (UTS), MPa 640 to 710
370 to 630
Tensile Strength: Yield (Proof), MPa 310 to 350
170 to 570

Thermal Properties

Latent Heat of Fusion, J/g 230
190
Maximum Temperature: Mechanical, °C 230
160
Melting Completion (Liquidus), °C 1060
1000
Melting Onset (Solidus), °C 1040
970
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 35
48
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
11
Electrical Conductivity: Equal Weight (Specific), % IACS 7.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 29
28
Density, g/cm3 8.3
8.4
Embodied Carbon, kg CO2/kg material 3.4
3.3
Embodied Energy, MJ/kg 55
52
Embodied Water, L/kg 380
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 99
18 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 510
130 to 1440
Stiffness to Weight: Axial, points 7.9
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 21 to 24
12 to 21
Strength to Weight: Bending, points 20 to 21
14 to 19
Thermal Diffusivity, mm2/s 9.6
15
Thermal Shock Resistance, points 22 to 24
12 to 21

Alloy Composition

Aluminum (Al), % 8.7 to 9.5
0
Copper (Cu), % 78.8 to 82.6
63 to 67
Iron (Fe), % 3.5 to 4.3
0 to 0.35
Lead (Pb), % 0 to 0.020
1.5 to 2.5
Manganese (Mn), % 1.2 to 2.0
0 to 0.5
Nickel (Ni), % 4.0 to 4.8
7.0 to 9.0
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0
20.2 to 28.5
Residuals, % 0
0 to 0.5