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6025 Aluminum vs. 6351 Aluminum

Both 6025 aluminum and 6351 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is 6025 aluminum and the bottom bar is 6351 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 2.8 to 10
7.8 to 18
Fatigue Strength, MPa 67 to 110
79 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 110 to 140
84 to 200
Tensile Strength: Ultimate (UTS), MPa 190 to 240
140 to 310
Tensile Strength: Yield (Proof), MPa 68 to 210
95 to 270

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 550
570
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
180
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
46
Electrical Conductivity: Equal Weight (Specific), % IACS 110
150

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 8.5
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1160
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0 to 15
20 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 310
65 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 19 to 24
14 to 32
Strength to Weight: Bending, points 26 to 31
22 to 38
Thermal Diffusivity, mm2/s 54
72
Thermal Shock Resistance, points 8.2 to 10
6.1 to 14

Alloy Composition

Aluminum (Al), % 91.7 to 96.3
96 to 98.5
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0.2 to 0.7
0 to 0.1
Iron (Fe), % 0 to 0.7
0 to 0.5
Magnesium (Mg), % 2.1 to 3.0
0.4 to 0.8
Manganese (Mn), % 0.6 to 1.4
0.4 to 0.8
Silicon (Si), % 0.8 to 1.5
0.7 to 1.3
Titanium (Ti), % 0 to 0.2
0 to 0.2
Zinc (Zn), % 0 to 0.5
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants