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Grade 12 Titanium vs. A357.0 Aluminum

Grade 12 titanium belongs to the titanium alloys classification, while A357.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 12 titanium and the bottom bar is A357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
100
Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 21
3.7
Fatigue Strength, MPa 280
100
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
26
Shear Strength, MPa 330
240
Tensile Strength: Ultimate (UTS), MPa 530
350
Tensile Strength: Yield (Proof), MPa 410
270

Thermal Properties

Latent Heat of Fusion, J/g 420
500
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
610
Melting Onset (Solidus), °C 1610
560
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 21
160
Thermal Expansion, µm/m-K 9.6
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
40
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
140

Otherwise Unclassified Properties

Base Metal Price, % relative 37
12
Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 31
8.2
Embodied Energy, MJ/kg 500
150
Embodied Water, L/kg 110
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
12
Resilience: Unit (Modulus of Resilience), kJ/m3 770
520
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
53
Strength to Weight: Axial, points 32
38
Strength to Weight: Bending, points 32
43
Thermal Diffusivity, mm2/s 8.5
68
Thermal Shock Resistance, points 37
17

Alloy Composition

Aluminum (Al), % 0
90.8 to 93
Beryllium (Be), % 0
0.040 to 0.070
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.2
Magnesium (Mg), % 0
0.4 to 0.7
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.6 to 0.9
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 97.6 to 99.2
0.040 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15