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380.0 Aluminum vs. 705.0 Aluminum

Both 380.0 aluminum and 705.0 aluminum are aluminum alloys. They have 87% of their average alloy composition in common. There are 30 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 380.0 aluminum and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
62 to 65
Elastic (Young's, Tensile) Modulus, GPa 74
69
Elongation at Break, % 3.0
8.4 to 10
Fatigue Strength, MPa 140
63 to 98
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Tensile Strength: Ultimate (UTS), MPa 320
240 to 260
Tensile Strength: Yield (Proof), MPa 160
130

Thermal Properties

Latent Heat of Fusion, J/g 510
390
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 590
640
Melting Onset (Solidus), °C 540
610
Specific Heat Capacity, J/kg-K 870
890
Thermal Conductivity, W/m-K 100
140
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
34
Electrical Conductivity: Equal Weight (Specific), % IACS 83
110

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.9
2.8
Embodied Carbon, kg CO2/kg material 7.5
8.4
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
18 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 170
120 to 130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
49
Strength to Weight: Axial, points 31
24 to 26
Strength to Weight: Bending, points 36
31 to 32
Thermal Diffusivity, mm2/s 40
55
Thermal Shock Resistance, points 14
11

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
92.3 to 98.6
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 3.0 to 4.0
0 to 0.2
Iron (Fe), % 0 to 2.0
0 to 0.8
Magnesium (Mg), % 0 to 0.1
1.4 to 1.8
Manganese (Mn), % 0 to 0.5
0 to 0.6
Nickel (Ni), % 0 to 0.5
0
Silicon (Si), % 7.5 to 9.5
0 to 0.2
Tin (Sn), % 0 to 0.35
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 3.0
0 to 3.3
Residuals, % 0
0 to 0.15