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Grade 27 Titanium vs. C18900 Copper

Grade 27 titanium belongs to the titanium alloys classification, while C18900 copper belongs to the copper 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 grade 27 titanium and the bottom bar is C18900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 27
14 to 48
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
43
Shear Strength, MPa 180
190 to 300
Tensile Strength: Ultimate (UTS), MPa 270
260 to 500
Tensile Strength: Yield (Proof), MPa 230
67 to 390

Thermal Properties

Latent Heat of Fusion, J/g 420
210
Maximum Temperature: Mechanical, °C 320
200
Melting Completion (Liquidus), °C 1660
1080
Melting Onset (Solidus), °C 1610
1020
Specific Heat Capacity, J/kg-K 540
390
Thermal Conductivity, W/m-K 21
130
Thermal Expansion, µm/m-K 8.7
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
30
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
30

Otherwise Unclassified Properties

Base Metal Price, % relative 37
31
Density, g/cm3 4.5
8.9
Embodied Carbon, kg CO2/kg material 33
2.7
Embodied Energy, MJ/kg 530
42
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
65 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 240
20 to 660
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 35
18
Strength to Weight: Axial, points 17
8.2 to 16
Strength to Weight: Bending, points 21
10 to 16
Thermal Diffusivity, mm2/s 8.8
38
Thermal Shock Resistance, points 21
9.3 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
97.7 to 99.15
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0
0.1 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.050
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0.15 to 0.4
Tin (Sn), % 0
0.6 to 0.9
Titanium (Ti), % 99 to 99.92
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5