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390.0 Aluminum vs. 705.0 Aluminum

Both 390.0 aluminum and 705.0 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 390.0 aluminum and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 74.5 to 79.6
92.3 to 98.6
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 4.0 to 5.0
0 to 0.2
Iron (Fe), % 0 to 1.3
0 to 0.8
Magnesium (Mg), % 0.45 to 0.65
1.4 to 1.8
Manganese (Mn), % 0 to 0.1
0 to 0.6
Silicon (Si), % 16 to 18
0 to 0.2
Titanium (Ti), % 0 to 0.2
0 to 0.25
Zinc (Zn), % 0 to 0.1
0 to 3.3
Residuals, % 0
0 to 0.15

Comparable Variants