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C70700 Copper-nickel vs. Grade C-2 Titanium

C70700 copper-nickel belongs to the copper alloys classification, while grade C-2 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is grade C-2 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
180
Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 39
17
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 46
40
Tensile Strength: Ultimate (UTS), MPa 320
390
Tensile Strength: Yield (Proof), MPa 110
310

Thermal Properties

Latent Heat of Fusion, J/g 220
420
Maximum Temperature: Mechanical, °C 220
320
Melting Completion (Liquidus), °C 1120
1660
Melting Onset (Solidus), °C 1060
1610
Specific Heat Capacity, J/kg-K 390
540
Thermal Conductivity, W/m-K 59
21
Thermal Expansion, µm/m-K 16
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 12
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 34
37
Density, g/cm3 8.9
4.5
Embodied Carbon, kg CO2/kg material 3.4
31
Embodied Energy, MJ/kg 52
510
Embodied Water, L/kg 300
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
61
Resilience: Unit (Modulus of Resilience), kJ/m3 51
460
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
35
Strength to Weight: Axial, points 10
24
Strength to Weight: Bending, points 12
26
Thermal Diffusivity, mm2/s 17
8.8
Thermal Shock Resistance, points 12
30

Alloy Composition

Carbon (C), % 0
0 to 0.1
Copper (Cu), % 88.5 to 90.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.050
0 to 0.2
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 9.5 to 10.5
0 to 0.050
Oxygen (O), % 0
0 to 0.4
Titanium (Ti), % 0
98.8 to 100
Residuals, % 0
0 to 0.4