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AWS ERTi-7 vs. 771.0 Aluminum

AWS ERTi-7 belongs to the titanium alloys classification, while 771.0 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-7 and the bottom bar is 771.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 20
1.7 to 6.5
Fatigue Strength, MPa 190
92 to 180
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 340
250 to 370
Tensile Strength: Yield (Proof), MPa 280
210 to 350

Thermal Properties

Latent Heat of Fusion, J/g 420
380
Maximum Temperature: Mechanical, °C 320
180
Melting Completion (Liquidus), °C 1670
630
Melting Onset (Solidus), °C 1620
620
Specific Heat Capacity, J/kg-K 540
870
Thermal Conductivity, W/m-K 21
140 to 150
Thermal Expansion, µm/m-K 8.7
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
27
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
82

Otherwise Unclassified Properties

Density, g/cm3 4.5
3.0
Embodied Carbon, kg CO2/kg material 47
8.0
Embodied Energy, MJ/kg 800
150
Embodied Water, L/kg 470
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
4.4 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 360
310 to 900
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
46
Strength to Weight: Axial, points 21
23 to 35
Strength to Weight: Bending, points 24
29 to 39
Thermal Diffusivity, mm2/s 8.8
54 to 58
Thermal Shock Resistance, points 26
11 to 16

Alloy Composition

Aluminum (Al), % 0
90.5 to 92.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 0
0.060 to 0.2
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
0 to 0.15
Magnesium (Mg), % 0
0.8 to 1.0
Manganese (Mn), % 0
0 to 0.1
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 0.15
Titanium (Ti), % 99.417 to 99.8
0.1 to 0.2
Zinc (Zn), % 0
6.5 to 7.5
Residuals, % 0
0 to 0.15