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7108A Aluminum vs. AWS ERTi-1

7108A aluminum belongs to the aluminum alloys classification, while AWS ERTi-1 belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 7108A aluminum and the bottom bar is AWS ERTi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 11 to 13
24
Fatigue Strength, MPa 120 to 130
120
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 350
240
Tensile Strength: Yield (Proof), MPa 290 to 300
170

Thermal Properties

Latent Heat of Fusion, J/g 380
420
Maximum Temperature: Mechanical, °C 210
320
Melting Completion (Liquidus), °C 630
1670
Melting Onset (Solidus), °C 520
1620
Specific Heat Capacity, J/kg-K 870
540
Thermal Conductivity, W/m-K 150
21
Thermal Expansion, µm/m-K 24
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 110
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
37
Density, g/cm3 2.9
4.5
Embodied Carbon, kg CO2/kg material 8.3
31
Embodied Energy, MJ/kg 150
510
Embodied Water, L/kg 1150
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
52
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
140
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
35
Strength to Weight: Axial, points 33 to 34
15
Strength to Weight: Bending, points 38
19
Thermal Diffusivity, mm2/s 59
8.7
Thermal Shock Resistance, points 15 to 16
19

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
0
Gallium (Ga), % 0 to 0.030
0
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0 to 0.3
0 to 0.080
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0
Nitrogen (N), % 0
0 to 0.012
Oxygen (O), % 0
0.030 to 0.1
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.030
99.773 to 99.97
Zinc (Zn), % 4.8 to 5.8
0
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0