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C70250 Copper vs. Grade 25 Titanium

C70250 copper belongs to the copper alloys classification, while grade 25 titanium belongs to the titanium 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 C70250 copper and the bottom bar is grade 25 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 44
40
Tensile Strength: Ultimate (UTS), MPa 520 to 740
1000

Thermal Properties

Latent Heat of Fusion, J/g 220
410
Maximum Temperature: Mechanical, °C 210
340
Melting Completion (Liquidus), °C 1100
1610
Melting Onset (Solidus), °C 1080
1560
Specific Heat Capacity, J/kg-K 390
560
Thermal Conductivity, W/m-K 170
7.1
Thermal Expansion, µm/m-K 17
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36 to 50
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 37 to 51
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.9
4.5
Embodied Carbon, kg CO2/kg material 2.9
43
Embodied Energy, MJ/kg 45
700
Embodied Water, L/kg 310
320

Common Calculations

Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 18
35
Strength to Weight: Axial, points 16 to 23
62
Strength to Weight: Bending, points 16 to 21
50
Thermal Diffusivity, mm2/s 49
2.8
Thermal Shock Resistance, points 18 to 26
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 92.7 to 97.5
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 0
0 to 0.4
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.050 to 0.3
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 2.2 to 4.2
0.3 to 0.8
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 0.25 to 1.2
0
Titanium (Ti), % 0
86.7 to 90.6
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0
0 to 0.4