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Grade 18 Titanium vs. C70250 Copper

Grade 18 titanium belongs to the titanium alloys classification, while C70250 copper belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 18 titanium and the bottom bar is C70250 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 690 to 980
520 to 740

Thermal Properties

Latent Heat of Fusion, J/g 410
220
Maximum Temperature: Mechanical, °C 330
210
Melting Completion (Liquidus), °C 1640
1100
Melting Onset (Solidus), °C 1590
1080
Specific Heat Capacity, J/kg-K 550
390
Thermal Conductivity, W/m-K 8.3
170
Thermal Expansion, µm/m-K 9.9
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
36 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
37 to 51

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.9
Embodied Carbon, kg CO2/kg material 41
2.9
Embodied Energy, MJ/kg 670
45
Embodied Water, L/kg 270
310

Common Calculations

Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 35
18
Strength to Weight: Axial, points 43 to 61
16 to 23
Strength to Weight: Bending, points 39 to 49
16 to 21
Thermal Diffusivity, mm2/s 3.4
49
Thermal Shock Resistance, points 47 to 67
18 to 26

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
92.7 to 97.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.050 to 0.3
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
2.2 to 4.2
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0.25 to 1.2
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5