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Grade 27 Titanium vs. C17500 Copper

Grade 27 titanium belongs to the titanium alloys classification, while C17500 copper belongs to the copper alloys. There are 30 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 C17500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 27
6.0 to 30
Fatigue Strength, MPa 170
170 to 310
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
45
Shear Strength, MPa 180
200 to 520
Tensile Strength: Ultimate (UTS), MPa 270
310 to 860
Tensile Strength: Yield (Proof), MPa 230
170 to 760

Thermal Properties

Latent Heat of Fusion, J/g 420
220
Maximum Temperature: Mechanical, °C 320
220
Melting Completion (Liquidus), °C 1660
1060
Melting Onset (Solidus), °C 1610
1020
Specific Heat Capacity, J/kg-K 540
390
Thermal Conductivity, W/m-K 21
200
Thermal Expansion, µm/m-K 8.7
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
24 to 53
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
24 to 54

Otherwise Unclassified Properties

Base Metal Price, % relative 37
60
Density, g/cm3 4.5
8.9
Embodied Carbon, kg CO2/kg material 33
4.7
Embodied Energy, MJ/kg 530
73
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
30 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 240
120 to 2390
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 35
18
Strength to Weight: Axial, points 17
9.7 to 27
Strength to Weight: Bending, points 21
11 to 23
Thermal Diffusivity, mm2/s 8.8
59
Thermal Shock Resistance, points 21
11 to 29

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Beryllium (Be), % 0
0.4 to 0.7
Carbon (C), % 0 to 0.080
0
Cobalt (Co), % 0
2.4 to 2.7
Copper (Cu), % 0
95.6 to 97.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.2
Titanium (Ti), % 99 to 99.92
0
Residuals, % 0
0 to 0.5