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Grade 2 Titanium vs. C72900 Copper-nickel

Grade 2 titanium belongs to the titanium alloys classification, while C72900 copper-nickel belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is C72900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 23
6.0 to 20
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 38
45
Shear Strength, MPa 270
540 to 630
Tensile Strength: Ultimate (UTS), MPa 420
870 to 1080
Tensile Strength: Yield (Proof), MPa 360
700 to 920

Thermal Properties

Latent Heat of Fusion, J/g 420
210
Maximum Temperature: Mechanical, °C 320
210
Melting Completion (Liquidus), °C 1660
1120
Melting Onset (Solidus), °C 1610
950
Specific Heat Capacity, J/kg-K 540
380
Thermal Conductivity, W/m-K 22
29
Thermal Expansion, µm/m-K 9.0
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 37
39
Density, g/cm3 4.5
8.8
Embodied Carbon, kg CO2/kg material 31
4.6
Embodied Energy, MJ/kg 510
72
Embodied Water, L/kg 110
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
49 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 600
2030 to 3490
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 35
19
Strength to Weight: Axial, points 26
27 to 34
Strength to Weight: Bending, points 28
23 to 27
Thermal Diffusivity, mm2/s 8.9
8.6
Thermal Shock Resistance, points 32
31 to 38

Alloy Composition

Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
74.1 to 78
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0
0 to 0.3
Nickel (Ni), % 0
14.5 to 15.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Tin (Sn), % 0
7.5 to 8.5
Titanium (Ti), % 98.9 to 100
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3