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Grade 2 Titanium vs. 357.0 Aluminum

Grade 2 titanium belongs to the titanium alloys classification, while 357.0 aluminum belongs to the aluminum alloys. There are 31 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 2 titanium and the bottom bar is 357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
95
Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 23
3.4
Fatigue Strength, MPa 250
76
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 38
26
Shear Strength, MPa 270
200
Tensile Strength: Ultimate (UTS), MPa 420
350
Tensile Strength: Yield (Proof), MPa 360
300

Thermal Properties

Latent Heat of Fusion, J/g 420
500
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
620
Melting Onset (Solidus), °C 1610
560
Specific Heat Capacity, J/kg-K 540
910
Thermal Conductivity, W/m-K 22
150
Thermal Expansion, µm/m-K 9.0
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
39
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
140

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 31
8.0
Embodied Energy, MJ/kg 510
150
Embodied Water, L/kg 110
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
11
Resilience: Unit (Modulus of Resilience), kJ/m3 600
620
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
53
Strength to Weight: Axial, points 26
38
Strength to Weight: Bending, points 28
43
Thermal Diffusivity, mm2/s 8.9
64
Thermal Shock Resistance, points 32
17

Alloy Composition

Aluminum (Al), % 0
91.3 to 93.1
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.15
Magnesium (Mg), % 0
0.45 to 0.6
Manganese (Mn), % 0
0 to 0.030
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 98.9 to 100
0 to 0.2
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.15