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Grade C-2 Titanium vs. C70620 Copper-nickel

Grade C-2 titanium belongs to the titanium alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade C-2 titanium and the bottom bar is C70620 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
65 to 87
Shear Modulus, GPa 40
46
Tensile Strength: Ultimate (UTS), MPa 390
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 420
220
Maximum Temperature: Mechanical, °C 320
220
Melting Completion (Liquidus), °C 1660
1120
Melting Onset (Solidus), °C 1610
1060
Specific Heat Capacity, J/kg-K 540
390
Thermal Conductivity, W/m-K 21
49
Thermal Expansion, µm/m-K 8.7
17

Otherwise Unclassified Properties

Base Metal Price, % relative 37
33
Density, g/cm3 4.5
8.9
Embodied Carbon, kg CO2/kg material 31
3.4
Embodied Energy, MJ/kg 510
51
Embodied Water, L/kg 110
300

Common Calculations

Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 35
19
Strength to Weight: Axial, points 24
9.3 to 18
Strength to Weight: Bending, points 26
11 to 17
Thermal Diffusivity, mm2/s 8.8
14
Thermal Shock Resistance, points 30
10 to 20

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.050
Copper (Cu), % 0
86.5 to 90
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.050
9.0 to 11
Oxygen (O), % 0 to 0.4
0
Phosphorus (P), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 98.8 to 100
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5