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1070 Aluminum vs. 7049 Aluminum

Both 1070 aluminum and 7049 aluminum are aluminum alloys. They have 88% 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 1070 aluminum and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 4.5 to 39
6.2 to 7.0
Fatigue Strength, MPa 22 to 49
160 to 170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Shear Strength, MPa 48 to 79
300 to 310
Tensile Strength: Ultimate (UTS), MPa 73 to 140
510 to 530
Tensile Strength: Yield (Proof), MPa 17 to 120
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 640
480
Specific Heat Capacity, J/kg-K 900
860
Thermal Conductivity, W/m-K 230
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
36
Electrical Conductivity: Equal Weight (Specific), % IACS 200
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.1
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 1200
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 21
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 110
1270 to 1440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 7.5 to 14
46 to 47
Strength to Weight: Bending, points 14 to 22
46 to 47
Thermal Diffusivity, mm2/s 94
51
Thermal Shock Resistance, points 3.3 to 6.1
22 to 23

Alloy Composition

Aluminum (Al), % 99.7 to 100
85.7 to 89.5
Chromium (Cr), % 0
0.1 to 0.22
Copper (Cu), % 0 to 0.040
1.2 to 1.9
Iron (Fe), % 0 to 0.25
0 to 0.35
Magnesium (Mg), % 0 to 0.030
2.0 to 2.9
Manganese (Mn), % 0 to 0.030
0 to 0.2
Silicon (Si), % 0 to 0.2
0 to 0.25
Titanium (Ti), % 0 to 0.030
0 to 0.1
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.040
7.2 to 8.2
Residuals, % 0 to 0.030
0 to 0.15