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8079 Aluminum vs. AWS ERTi-1

8079 aluminum belongs to the aluminum alloys classification, while AWS ERTi-1 belongs to the titanium alloys.

For each property being compared, the top bar is 8079 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, % 2.2
24
Fatigue Strength, MPa 56
120
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 150
240
Tensile Strength: Yield (Proof), MPa 120
170

Thermal Properties

Latent Heat of Fusion, J/g 400
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 650
1670
Melting Onset (Solidus), °C 640
1620
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 230
21
Thermal Expansion, µm/m-K 23
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 190
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
37
Density, g/cm3 2.8
4.5
Embodied Carbon, kg CO2/kg material 8.2
31
Embodied Energy, MJ/kg 150
510
Embodied Water, L/kg 1180
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
52
Resilience: Unit (Modulus of Resilience), kJ/m3 110
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 15
15
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 92
8.7
Thermal Shock Resistance, points 6.4
19

Alloy Composition

Aluminum (Al), % 98.1 to 99.3
0
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0.7 to 1.3
0 to 0.080
Nitrogen (N), % 0
0 to 0.012
Oxygen (O), % 0
0.030 to 0.1
Silicon (Si), % 0.050 to 0.3
0
Titanium (Ti), % 0
99.773 to 99.97
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0