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Grade C-5 Titanium vs. 705.0 Aluminum

Grade C-5 titanium belongs to the titanium alloys classification, while 705.0 aluminum belongs to the aluminum 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 C-5 titanium and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
62 to 65
Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 6.7
8.4 to 10
Fatigue Strength, MPa 510
63 to 98
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 1000
240 to 260
Tensile Strength: Yield (Proof), MPa 940
130

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 340
180
Melting Completion (Liquidus), °C 1610
640
Melting Onset (Solidus), °C 1560
610
Specific Heat Capacity, J/kg-K 560
890
Thermal Conductivity, W/m-K 7.1
140
Thermal Expansion, µm/m-K 9.6
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
110

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 4.4
2.8
Embodied Carbon, kg CO2/kg material 38
8.4
Embodied Energy, MJ/kg 610
150
Embodied Water, L/kg 200
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
18 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 4200
120 to 130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
49
Strength to Weight: Axial, points 63
24 to 26
Strength to Weight: Bending, points 50
31 to 32
Thermal Diffusivity, mm2/s 2.9
55
Thermal Shock Resistance, points 71
11

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
92.3 to 98.6
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.8
Magnesium (Mg), % 0
1.4 to 1.8
Manganese (Mn), % 0
0 to 0.6
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
0 to 0.2
Titanium (Ti), % 87.5 to 91
0 to 0.25
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 3.3
Residuals, % 0
0 to 0.15