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705.0 Aluminum vs. 390.0 Aluminum

Both 705.0 aluminum and 390.0 aluminum are aluminum alloys. They have 78% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 705.0 aluminum and the bottom bar is 390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62 to 65
120
Elastic (Young's, Tensile) Modulus, GPa 69
75
Elongation at Break, % 8.4 to 10
1.0
Fatigue Strength, MPa 63 to 98
76 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
28
Tensile Strength: Ultimate (UTS), MPa 240 to 260
280 to 300
Tensile Strength: Yield (Proof), MPa 130
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 390
640
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 610
560
Specific Heat Capacity, J/kg-K 890
880
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
24 to 25
Electrical Conductivity: Equal Weight (Specific), % IACS 110
79 to 83

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 8.4
7.3
Embodied Energy, MJ/kg 150
130
Embodied Water, L/kg 1170
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 20
2.7 to 2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 130
380 to 470
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
52
Strength to Weight: Axial, points 24 to 26
28 to 30
Strength to Weight: Bending, points 31 to 32
35 to 36
Thermal Diffusivity, mm2/s 55
56
Thermal Shock Resistance, points 11
14 to 15

Alloy Composition

Aluminum (Al), % 92.3 to 98.6
74.5 to 79.6
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0 to 0.2
4.0 to 5.0
Iron (Fe), % 0 to 0.8
0 to 1.3
Magnesium (Mg), % 1.4 to 1.8
0.45 to 0.65
Manganese (Mn), % 0 to 0.6
0 to 0.1
Silicon (Si), % 0 to 0.2
16 to 18
Titanium (Ti), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 0 to 3.3
0 to 0.1
Residuals, % 0
0 to 0.2

Comparable Variants