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EN AC-21200 Aluminum vs. Grade 6 Titanium

EN AC-21200 aluminum belongs to the aluminum alloys classification, while grade 6 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
100
Elongation at Break, % 3.9 to 6.2
11
Fatigue Strength, MPa 110 to 130
290
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
39
Tensile Strength: Ultimate (UTS), MPa 410 to 440
890
Tensile Strength: Yield (Proof), MPa 270 to 360
840

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 170
310
Melting Completion (Liquidus), °C 660
1580
Melting Onset (Solidus), °C 550
1530
Specific Heat Capacity, J/kg-K 880
550
Thermal Conductivity, W/m-K 130
7.8
Thermal Expansion, µm/m-K 23
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 3.0
4.5
Embodied Carbon, kg CO2/kg material 8.0
30
Embodied Energy, MJ/kg 150
480
Embodied Water, L/kg 1150
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 22
92
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 930
3390
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
35
Strength to Weight: Axial, points 38 to 40
55
Strength to Weight: Bending, points 41 to 43
46
Thermal Diffusivity, mm2/s 49
3.2
Thermal Shock Resistance, points 18 to 19
65

Alloy Composition

Aluminum (Al), % 93.3 to 95.7
4.0 to 6.0
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 0.5
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0.15 to 0.5
0
Manganese (Mn), % 0.2 to 0.5
0
Nickel (Ni), % 0 to 0.050
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0 to 0.030
2.0 to 3.0
Titanium (Ti), % 0 to 0.1
89.8 to 94
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.4