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Grade 12 Titanium vs. EN AC-51500 Aluminum

Grade 12 titanium belongs to the titanium alloys classification, while EN AC-51500 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 12 titanium and the bottom bar is EN AC-51500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
80
Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 21
5.6
Fatigue Strength, MPa 280
120
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
26
Tensile Strength: Ultimate (UTS), MPa 530
280
Tensile Strength: Yield (Proof), MPa 410
160

Thermal Properties

Latent Heat of Fusion, J/g 420
430
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
630
Melting Onset (Solidus), °C 1610
590
Specific Heat Capacity, J/kg-K 540
910
Thermal Conductivity, W/m-K 21
120
Thermal Expansion, µm/m-K 9.6
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
26
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
88

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 31
9.0
Embodied Energy, MJ/kg 500
150
Embodied Water, L/kg 110
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
13
Resilience: Unit (Modulus of Resilience), kJ/m3 770
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
52
Strength to Weight: Axial, points 32
29
Strength to Weight: Bending, points 32
36
Thermal Diffusivity, mm2/s 8.5
49
Thermal Shock Resistance, points 37
13

Alloy Composition

Aluminum (Al), % 0
89.8 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 0.25
Magnesium (Mg), % 0
4.7 to 6.0
Manganese (Mn), % 0
0.4 to 0.8
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
1.8 to 2.6
Titanium (Ti), % 97.6 to 99.2
0 to 0.25
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.15