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AWS ERTi-1 vs. 2618 Aluminum

AWS ERTi-1 belongs to the titanium alloys classification, while 2618 aluminum belongs to the aluminum 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 AWS ERTi-1 and the bottom bar is 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 24
5.8
Fatigue Strength, MPa 120
110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
27
Tensile Strength: Ultimate (UTS), MPa 240
420
Tensile Strength: Yield (Proof), MPa 170
350

Thermal Properties

Latent Heat of Fusion, J/g 420
390
Maximum Temperature: Mechanical, °C 320
210
Melting Completion (Liquidus), °C 1670
640
Melting Onset (Solidus), °C 1620
550
Specific Heat Capacity, J/kg-K 540
880
Thermal Conductivity, W/m-K 21
160
Thermal Expansion, µm/m-K 8.7
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
37
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
110

Otherwise Unclassified Properties

Base Metal Price, % relative 37
11
Density, g/cm3 4.5
2.9
Embodied Carbon, kg CO2/kg material 31
8.3
Embodied Energy, MJ/kg 510
150
Embodied Water, L/kg 110
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
23
Resilience: Unit (Modulus of Resilience), kJ/m3 140
850
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
47
Strength to Weight: Axial, points 15
40
Strength to Weight: Bending, points 19
42
Thermal Diffusivity, mm2/s 8.7
62
Thermal Shock Resistance, points 19
19

Alloy Composition

Aluminum (Al), % 0
92.4 to 94.9
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
1.9 to 2.7
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
0.9 to 1.3
Magnesium (Mg), % 0
1.3 to 1.8
Nickel (Ni), % 0
0.9 to 1.2
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Silicon (Si), % 0
0.1 to 0.25
Titanium (Ti), % 99.773 to 99.97
0.040 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15