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EN AC-71100 Aluminum vs. Grade 7 Titanium

EN AC-71100 aluminum belongs to the aluminum alloys classification, while grade 7 titanium belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN AC-71100 aluminum and the bottom bar is grade 7 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
150
Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 1.1
24
Fatigue Strength, MPa 150
250
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 27
38
Tensile Strength: Ultimate (UTS), MPa 260
420
Tensile Strength: Yield (Proof), MPa 230
340

Thermal Properties

Latent Heat of Fusion, J/g 490
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 580
1660
Melting Onset (Solidus), °C 520
1610
Specific Heat Capacity, J/kg-K 860
540
Thermal Expansion, µm/m-K 22
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 97
7.2

Otherwise Unclassified Properties

Density, g/cm3 2.9
4.5
Embodied Carbon, kg CO2/kg material 7.4
47
Embodied Energy, MJ/kg 140
800
Embodied Water, L/kg 1010
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
95
Resilience: Unit (Modulus of Resilience), kJ/m3 360
560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
35
Strength to Weight: Axial, points 25
26
Strength to Weight: Bending, points 31
28
Thermal Shock Resistance, points 12
31

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.3
0 to 0.3
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.12 to 0.25
Silicon (Si), % 7.5 to 9.5
0
Titanium (Ti), % 0 to 0.15
98.7 to 99.88
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0
0 to 0.4