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7003 Aluminum vs. 6261 Aluminum

Both 7003 aluminum and 6261 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is 7003 aluminum and the bottom bar is 6261 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 11
9.0 to 16
Fatigue Strength, MPa 130 to 150
60 to 120
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 210 to 230
90 to 180
Tensile Strength: Ultimate (UTS), MPa 350 to 390
150 to 300
Tensile Strength: Yield (Proof), MPa 300 to 310
100 to 260

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 510
610
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 150
180
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
48
Electrical Conductivity: Equal Weight (Specific), % IACS 110
160

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.1
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
21 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
77 to 500
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 33 to 37
15 to 31
Strength to Weight: Bending, points 37 to 40
23 to 37
Thermal Diffusivity, mm2/s 59
75
Thermal Shock Resistance, points 15 to 17
6.5 to 13

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
96.6 to 98.6
Chromium (Cr), % 0 to 0.2
0 to 0.1
Copper (Cu), % 0 to 0.2
0.15 to 0.4
Iron (Fe), % 0 to 0.35
0 to 0.4
Magnesium (Mg), % 0.5 to 1.0
0.7 to 1.0
Manganese (Mn), % 0 to 0.3
0.2 to 0.35
Silicon (Si), % 0 to 0.3
0.4 to 0.7
Titanium (Ti), % 0 to 0.2
0 to 0.1
Zinc (Zn), % 5.0 to 6.5
0 to 0.2
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0
0 to 0.15

Comparable Variants