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Grade 20 Titanium vs. C18700 Copper

Grade 20 titanium belongs to the titanium alloys classification, while C18700 copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 5.7 to 17
9.0 to 9.6
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 47
43
Shear Strength, MPa 560 to 740
170 to 190
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
290 to 330
Tensile Strength: Yield (Proof), MPa 850 to 1190
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 400
210
Maximum Temperature: Mechanical, °C 370
200
Melting Completion (Liquidus), °C 1660
1080
Melting Onset (Solidus), °C 1600
950
Specific Heat Capacity, J/kg-K 520
380
Thermal Expansion, µm/m-K 9.6
17

Otherwise Unclassified Properties

Density, g/cm3 5.0
9.0
Embodied Carbon, kg CO2/kg material 52
2.6
Embodied Energy, MJ/kg 860
41
Embodied Water, L/kg 350
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
240 to 280
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 33
18
Strength to Weight: Axial, points 50 to 70
9.0 to 10
Strength to Weight: Bending, points 41 to 52
11 to 12
Thermal Shock Resistance, points 55 to 77
10 to 12

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0
Copper (Cu), % 0
98 to 99.2
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 0
0.8 to 1.5
Molybdenum (Mo), % 3.5 to 4.5
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Titanium (Ti), % 71 to 77
0
Vanadium (V), % 7.5 to 8.5
0
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.5

Comparable Variants