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C18700 Copper vs. Grade 29 Titanium

C18700 copper belongs to the copper alloys classification, while grade 29 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is grade 29 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 9.0 to 9.6
6.8 to 11
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
40
Shear Strength, MPa 170 to 190
550 to 560
Tensile Strength: Ultimate (UTS), MPa 290 to 330
930 to 940
Tensile Strength: Yield (Proof), MPa 230 to 250
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 210
410
Maximum Temperature: Mechanical, °C 200
340
Melting Completion (Liquidus), °C 1080
1610
Melting Onset (Solidus), °C 950
1560
Specific Heat Capacity, J/kg-K 380
560
Thermal Conductivity, W/m-K 380
7.3
Thermal Expansion, µm/m-K 17
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 30
36
Density, g/cm3 9.0
4.5
Embodied Carbon, kg CO2/kg material 2.6
39
Embodied Energy, MJ/kg 41
640
Embodied Water, L/kg 310
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
62 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
3420 to 3540
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
35
Strength to Weight: Axial, points 9.0 to 10
58 to 59
Strength to Weight: Bending, points 11 to 12
47 to 48
Thermal Diffusivity, mm2/s 110
2.9
Thermal Shock Resistance, points 10 to 12
68 to 69

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
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 0.25
Lead (Pb), % 0.8 to 1.5
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Ruthenium (Ru), % 0
0.080 to 0.14
Titanium (Ti), % 0
88 to 90.9
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4