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AWS ERTi-7 vs. 3102 Aluminum

AWS ERTi-7 belongs to the titanium alloys classification, while 3102 aluminum belongs to the aluminum alloys. There are 28 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-7 and the bottom bar is 3102 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 20
23 to 28
Fatigue Strength, MPa 190
31 to 34
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 340
92 to 100
Tensile Strength: Yield (Proof), MPa 280
28 to 34

Thermal Properties

Latent Heat of Fusion, J/g 420
400
Maximum Temperature: Mechanical, °C 320
180
Melting Completion (Liquidus), °C 1670
640
Melting Onset (Solidus), °C 1620
640
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 21
230
Thermal Expansion, µm/m-K 8.7
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
56
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
190

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 47
8.2
Embodied Energy, MJ/kg 800
150
Embodied Water, L/kg 470
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 360
5.8 to 8.3
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 21
9.4 to 10
Strength to Weight: Bending, points 24
17 to 18
Thermal Diffusivity, mm2/s 8.8
92
Thermal Shock Resistance, points 26
4.1 to 4.4

Alloy Composition

Aluminum (Al), % 0
97.9 to 99.95
Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
0 to 0.7
Manganese (Mn), % 0
0.050 to 0.4
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0.12 to 0.25
0
Silicon (Si), % 0
0 to 0.4
Titanium (Ti), % 99.417 to 99.8
0 to 0.1
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.15