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296.0 Aluminum vs. 705.0 Aluminum

Both 296.0 aluminum and 705.0 aluminum are aluminum alloys. They have a moderately high 93% 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 296.0 aluminum and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75 to 90
62 to 65
Elastic (Young's, Tensile) Modulus, GPa 72
69
Elongation at Break, % 3.2 to 7.1
8.4 to 10
Fatigue Strength, MPa 47 to 70
63 to 98
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Tensile Strength: Ultimate (UTS), MPa 260 to 270
240 to 260
Tensile Strength: Yield (Proof), MPa 120 to 180
130

Thermal Properties

Latent Heat of Fusion, J/g 420
390
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 540
610
Specific Heat Capacity, J/kg-K 870
890
Thermal Conductivity, W/m-K 130 to 150
140
Thermal Expansion, µm/m-K 22
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 37
34
Electrical Conductivity: Equal Weight (Specific), % IACS 99 to 110
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 3.0
2.8
Embodied Carbon, kg CO2/kg material 7.8
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1110
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.6 to 15
18 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 220
120 to 130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
49
Strength to Weight: Axial, points 24 to 25
24 to 26
Strength to Weight: Bending, points 30 to 31
31 to 32
Thermal Diffusivity, mm2/s 51 to 56
55
Thermal Shock Resistance, points 12
11

Alloy Composition

Aluminum (Al), % 89 to 94
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 1.2
0 to 0.8
Magnesium (Mg), % 0 to 0.050
1.4 to 1.8
Manganese (Mn), % 0 to 0.35
0 to 0.6
Nickel (Ni), % 0 to 0.35
0
Silicon (Si), % 2.0 to 3.0
0 to 0.2
Titanium (Ti), % 0 to 0.25
0 to 0.25
Zinc (Zn), % 0 to 0.5
0 to 3.3
Residuals, % 0
0 to 0.15