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6151 Aluminum vs. Grade 19 Titanium

6151 aluminum belongs to the aluminum alloys classification, while grade 19 titanium belongs to the titanium alloys. There are 28 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 6151 aluminum and the bottom bar is grade 19 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 1.1 to 5.7
5.6 to 17
Fatigue Strength, MPa 80 to 100
550 to 620
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
47
Shear Strength, MPa 190 to 200
550 to 750
Tensile Strength: Ultimate (UTS), MPa 330 to 340
890 to 1300
Tensile Strength: Yield (Proof), MPa 270 to 280
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 170
370
Melting Completion (Liquidus), °C 650
1660
Melting Onset (Solidus), °C 590
1600
Specific Heat Capacity, J/kg-K 900
520
Thermal Conductivity, W/m-K 170
6.2
Thermal Expansion, µm/m-K 23
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
45
Density, g/cm3 2.7
5.0
Embodied Carbon, kg CO2/kg material 8.2
47
Embodied Energy, MJ/kg 150
760
Embodied Water, L/kg 1180
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 18
70 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 580
3040 to 5530
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
33
Strength to Weight: Axial, points 34
49 to 72
Strength to Weight: Bending, points 39
41 to 53
Thermal Diffusivity, mm2/s 70
2.4
Thermal Shock Resistance, points 15
57 to 83

Alloy Composition

Aluminum (Al), % 95.6 to 98.8
3.0 to 4.0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0.15 to 0.35
5.5 to 6.5
Copper (Cu), % 0 to 0.35
0
Hydrogen (H), % 0
0 to 0.020
Iron (Fe), % 0 to 1.0
0 to 0.3
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.2
0
Molybdenum (Mo), % 0
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.12
Silicon (Si), % 0.6 to 1.2
0
Titanium (Ti), % 0 to 0.15
71.1 to 77
Vanadium (V), % 0
7.5 to 8.5
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4

Comparable Variants