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EN AC-21200 Aluminum vs. Grade 12 Titanium

EN AC-21200 aluminum belongs to the aluminum alloys classification, while grade 12 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 EN AC-21200 aluminum and the bottom bar is grade 12 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 130
170
Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 3.9 to 6.2
21
Fatigue Strength, MPa 110 to 130
280
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
39
Tensile Strength: Ultimate (UTS), MPa 410 to 440
530
Tensile Strength: Yield (Proof), MPa 270 to 360
410

Thermal Properties

Latent Heat of Fusion, J/g 390
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 660
1660
Melting Onset (Solidus), °C 550
1610
Specific Heat Capacity, J/kg-K 880
540
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 23
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 100
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
37
Density, g/cm3 3.0
4.5
Embodied Carbon, kg CO2/kg material 8.0
31
Embodied Energy, MJ/kg 150
500
Embodied Water, L/kg 1150
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 22
110
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 930
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
35
Strength to Weight: Axial, points 38 to 40
32
Strength to Weight: Bending, points 41 to 43
32
Thermal Diffusivity, mm2/s 49
8.5
Thermal Shock Resistance, points 18 to 19
37

Alloy Composition

Aluminum (Al), % 93.3 to 95.7
0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 4.0 to 5.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.3
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0.15 to 0.5
0
Manganese (Mn), % 0.2 to 0.5
0
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 0 to 0.050
0.6 to 0.9
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.1
97.6 to 99.2
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.4