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C18700 Copper vs. Grade 12 Titanium

C18700 copper belongs to the copper alloys classification, while grade 12 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is grade 12 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 9.0 to 9.6
21
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
39
Shear Strength, MPa 170 to 190
330
Tensile Strength: Ultimate (UTS), MPa 290 to 330
530
Tensile Strength: Yield (Proof), MPa 230 to 250
410

Thermal Properties

Latent Heat of Fusion, J/g 210
420
Maximum Temperature: Mechanical, °C 200
320
Melting Completion (Liquidus), °C 1080
1660
Melting Onset (Solidus), °C 950
1610
Specific Heat Capacity, J/kg-K 380
540
Thermal Conductivity, W/m-K 380
21
Thermal Expansion, µm/m-K 17
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 99
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 30
37
Density, g/cm3 9.0
4.5
Embodied Carbon, kg CO2/kg material 2.6
31
Embodied Energy, MJ/kg 41
500
Embodied Water, L/kg 310
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
110
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
770
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
35
Strength to Weight: Axial, points 9.0 to 10
32
Strength to Weight: Bending, points 11 to 12
32
Thermal Diffusivity, mm2/s 110
8.5
Thermal Shock Resistance, points 10 to 12
37

Alloy Composition

Carbon (C), % 0
0 to 0.080
Copper (Cu), % 98 to 99.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.3
Lead (Pb), % 0.8 to 1.5
0
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 0
0.6 to 0.9
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Titanium (Ti), % 0
97.6 to 99.2
Residuals, % 0
0 to 0.4