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A357.0 Aluminum vs. Grade C-2 Titanium

A357.0 aluminum belongs to the aluminum alloys classification, while grade C-2 titanium belongs to the titanium 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 A357.0 aluminum and the bottom bar is grade C-2 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
180
Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 3.7
17
Fatigue Strength, MPa 100
200
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 350
390
Tensile Strength: Yield (Proof), MPa 270
310

Thermal Properties

Latent Heat of Fusion, J/g 500
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 610
1660
Melting Onset (Solidus), °C 560
1610
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 160
21
Thermal Expansion, µm/m-K 21
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 140
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
37
Density, g/cm3 2.6
4.5
Embodied Carbon, kg CO2/kg material 8.2
31
Embodied Energy, MJ/kg 150
510
Embodied Water, L/kg 1110
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
61
Resilience: Unit (Modulus of Resilience), kJ/m3 520
460
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
35
Strength to Weight: Axial, points 38
24
Strength to Weight: Bending, points 43
26
Thermal Diffusivity, mm2/s 68
8.8
Thermal Shock Resistance, points 17
30

Alloy Composition

Aluminum (Al), % 90.8 to 93
0
Beryllium (Be), % 0.040 to 0.070
0
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 0 to 0.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.2
Magnesium (Mg), % 0.4 to 0.7
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.4
Silicon (Si), % 6.5 to 7.5
0
Titanium (Ti), % 0.040 to 0.2
98.8 to 100
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.4