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C72800 Copper-nickel vs. C72700 Copper-nickel

Both C72800 copper-nickel and C72700 copper-nickel are copper alloys. They have a very high 97% of their average alloy composition in common. There are 29 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 C72800 copper-nickel 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, % 3.9 to 23
4.0 to 36
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 44
44
Shear Strength, MPa 330 to 740
310 to 620
Tensile Strength: Ultimate (UTS), MPa 520 to 1270
460 to 1070
Tensile Strength: Yield (Proof), MPa 250 to 1210
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 210
210
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 1080
1100
Melting Onset (Solidus), °C 920
930
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 55
54
Thermal Expansion, µm/m-K 17
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 38
36
Density, g/cm3 8.8
8.8
Embodied Carbon, kg CO2/kg material 4.4
4.0
Embodied Energy, MJ/kg 68
62
Embodied Water, L/kg 360
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 99
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 5650
1420 to 4770
Stiffness to Weight: Axial, points 7.4
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 17 to 40
14 to 34
Strength to Weight: Bending, points 16 to 30
15 to 26
Thermal Diffusivity, mm2/s 17
16
Thermal Shock Resistance, points 19 to 45
16 to 38

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.020
0
Bismuth (Bi), % 0 to 0.0010
0
Boron (B), % 0 to 0.0010
0
Copper (Cu), % 78.3 to 82.8
82.1 to 86
Iron (Fe), % 0 to 0.5
0 to 0.5
Lead (Pb), % 0 to 0.0050
0 to 0.020
Magnesium (Mg), % 0.0050 to 0.15
0 to 0.15
Manganese (Mn), % 0.050 to 0.3
0.050 to 0.3
Nickel (Ni), % 9.5 to 10.5
8.5 to 9.5
Niobium (Nb), % 0.1 to 0.3
0 to 0.1
Phosphorus (P), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.050
0
Sulfur (S), % 0 to 0.0025
0
Tin (Sn), % 7.5 to 8.5
5.5 to 6.5
Titanium (Ti), % 0 to 0.010
0
Zinc (Zn), % 0 to 1.0
0 to 0.5
Residuals, % 0
0 to 0.3

Comparable Variants