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Grade C-2 Titanium vs. C72500 Copper-nickel

Grade C-2 titanium belongs to the titanium alloys classification, while C72500 copper-nickel belongs to the copper alloys. 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 grade C-2 titanium and the bottom bar is C72500 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.32
0.34
Rockwell B Hardness 84
75 to 100
Shear Modulus, GPa 40
45
Tensile Strength: Ultimate (UTS), MPa 390
420 to 780

Thermal Properties

Latent Heat of Fusion, J/g 420
210
Maximum Temperature: Mechanical, °C 320
210
Melting Completion (Liquidus), °C 1660
1130
Melting Onset (Solidus), °C 1610
1060
Specific Heat Capacity, J/kg-K 540
390
Thermal Conductivity, W/m-K 21
54
Thermal Expansion, µm/m-K 8.7
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 37
35
Density, g/cm3 4.5
8.9
Embodied Carbon, kg CO2/kg material 31
3.6
Embodied Energy, MJ/kg 510
55
Embodied Water, L/kg 110
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 35
19
Strength to Weight: Axial, points 24
13 to 24
Strength to Weight: Bending, points 26
14 to 21
Thermal Diffusivity, mm2/s 8.8
16
Thermal Shock Resistance, points 30
14 to 27

Alloy Composition

Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
85.2 to 89.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.6
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.050
8.5 to 10.5
Oxygen (O), % 0 to 0.4
0
Tin (Sn), % 0
1.8 to 2.8
Titanium (Ti), % 98.8 to 100
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.2