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AWS ERTi-1 vs. 851.0 Aluminum

AWS ERTi-1 belongs to the titanium alloys classification, while 851.0 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-1 and the bottom bar is 851.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 24
3.9 to 9.1
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
26
Tensile Strength: Ultimate (UTS), MPa 240
130 to 140

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Maximum Temperature: Mechanical, °C 320
180
Melting Completion (Liquidus), °C 1670
630
Melting Onset (Solidus), °C 1620
360
Specific Heat Capacity, J/kg-K 540
850
Thermal Conductivity, W/m-K 21
180
Thermal Expansion, µm/m-K 8.7
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
46
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
140

Otherwise Unclassified Properties

Base Metal Price, % relative 37
14
Density, g/cm3 4.5
3.1
Embodied Carbon, kg CO2/kg material 31
8.4
Embodied Energy, MJ/kg 510
160
Embodied Water, L/kg 110
1140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
45
Strength to Weight: Axial, points 15
12 to 13
Strength to Weight: Bending, points 19
19 to 20
Thermal Diffusivity, mm2/s 8.7
69
Thermal Shock Resistance, points 19
6.1 to 6.3

Alloy Composition

Aluminum (Al), % 0
86.6 to 91.5
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
0.7 to 1.3
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.080
0 to 0.7
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
0.3 to 0.7
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0
Silicon (Si), % 0
2.0 to 3.0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 99.773 to 99.97
0 to 0.2
Residuals, % 0
0 to 0.3