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C95820 Bronze vs. C72700 Copper-nickel

Both C95820 bronze and C72700 copper-nickel are copper alloys. They have 86% of their average alloy composition in common. There are 28 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 C95820 bronze and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 15
4.0 to 36
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 44
44
Tensile Strength: Ultimate (UTS), MPa 730
460 to 1070
Tensile Strength: Yield (Proof), MPa 310
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 230
210
Maximum Temperature: Mechanical, °C 230
200
Melting Completion (Liquidus), °C 1080
1100
Melting Onset (Solidus), °C 1020
930
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 38
54
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
11

Otherwise Unclassified Properties

Base Metal Price, % relative 29
36
Density, g/cm3 8.3
8.8
Embodied Carbon, kg CO2/kg material 3.5
4.0
Embodied Energy, MJ/kg 56
62
Embodied Water, L/kg 380
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 400
1420 to 4770
Stiffness to Weight: Axial, points 8.0
7.4
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 24
14 to 34
Strength to Weight: Bending, points 22
15 to 26
Thermal Diffusivity, mm2/s 11
16
Thermal Shock Resistance, points 25
16 to 38

Alloy Composition

Aluminum (Al), % 9.0 to 10
0
Copper (Cu), % 77.5 to 82.5
82.1 to 86
Iron (Fe), % 4.0 to 5.0
0 to 0.5
Lead (Pb), % 0 to 0.020
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0 to 1.5
0.050 to 0.3
Nickel (Ni), % 4.5 to 5.8
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0 to 0.020
5.5 to 6.5
Zinc (Zn), % 0 to 0.2
0 to 0.5
Residuals, % 0
0 to 0.3