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2117 Aluminum vs. AWS ERTi-5

2117 aluminum belongs to the aluminum alloys classification, while AWS ERTi-5 belongs to the titanium alloys. There are 29 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 2117 aluminum and the bottom bar is AWS ERTi-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 26
10
Fatigue Strength, MPa 95
470
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
40
Tensile Strength: Ultimate (UTS), MPa 300
900
Tensile Strength: Yield (Proof), MPa 170
830

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 220
340
Melting Completion (Liquidus), °C 650
1610
Melting Onset (Solidus), °C 550
1560
Specific Heat Capacity, J/kg-K 880
560
Thermal Conductivity, W/m-K 150
7.1
Thermal Expansion, µm/m-K 24
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 3.0
4.4
Embodied Carbon, kg CO2/kg material 8.2
38
Embodied Energy, MJ/kg 150
610
Embodied Water, L/kg 1150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
87
Resilience: Unit (Modulus of Resilience), kJ/m3 190
3250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
35
Strength to Weight: Axial, points 28
56
Strength to Weight: Bending, points 33
46
Thermal Diffusivity, mm2/s 59
2.9
Thermal Shock Resistance, points 12
63

Alloy Composition

Aluminum (Al), % 91 to 97.6
5.5 to 6.8
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 2.2 to 4.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.7
0 to 0.22
Magnesium (Mg), % 0.2 to 1.0
0
Manganese (Mn), % 0.4 to 1.0
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0.12 to 0.2
Silicon (Si), % 0.2 to 0.8
0
Titanium (Ti), % 0 to 0.25
88.2 to 90.9
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0