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4145 Aluminum vs. AWS ERTi-2

4145 aluminum belongs to the aluminum alloys classification, while AWS ERTi-2 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 4145 aluminum and the bottom bar is AWS ERTi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 2.2
20
Fatigue Strength, MPa 48
190
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 28
40
Tensile Strength: Ultimate (UTS), MPa 120
340
Tensile Strength: Yield (Proof), MPa 68
280

Thermal Properties

Latent Heat of Fusion, J/g 540
420
Maximum Temperature: Mechanical, °C 160
320
Melting Completion (Liquidus), °C 590
1670
Melting Onset (Solidus), °C 520
1620
Specific Heat Capacity, J/kg-K 880
540
Thermal Conductivity, W/m-K 100
21
Thermal Expansion, µm/m-K 21
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 84
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
37
Density, g/cm3 2.8
4.5
Embodied Carbon, kg CO2/kg material 7.6
31
Embodied Energy, MJ/kg 140
510
Embodied Water, L/kg 1040
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
64
Resilience: Unit (Modulus of Resilience), kJ/m3 31
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 12
21
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 42
8.7
Thermal Shock Resistance, points 5.5
27

Alloy Composition

Aluminum (Al), % 83 to 87.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.15
0
Copper (Cu), % 3.3 to 4.7
0
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 0 to 0.8
0 to 0.12
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.15
0
Nitrogen (N), % 0
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Silicon (Si), % 9.3 to 10.7
0
Titanium (Ti), % 0
99.667 to 99.92
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0