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6261 Aluminum vs. EN-MC21210 Magnesium

6261 aluminum belongs to the aluminum alloys classification, while EN-MC21210 magnesium belongs to the magnesium alloys. 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 6261 aluminum and the bottom bar is EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
44
Elongation at Break, % 9.0 to 16
14
Fatigue Strength, MPa 60 to 120
70
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
17
Shear Strength, MPa 90 to 180
110
Tensile Strength: Ultimate (UTS), MPa 150 to 300
190
Tensile Strength: Yield (Proof), MPa 100 to 260
90

Thermal Properties

Latent Heat of Fusion, J/g 400
350
Maximum Temperature: Mechanical, °C 160
100
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 610
570
Specific Heat Capacity, J/kg-K 900
1000
Thermal Conductivity, W/m-K 180
120
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 48
24
Electrical Conductivity: Equal Weight (Specific), % IACS 160
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
1.6
Embodied Carbon, kg CO2/kg material 8.3
24
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1180
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 27
22
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 500
92
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
72
Strength to Weight: Axial, points 15 to 31
32
Strength to Weight: Bending, points 23 to 37
44
Thermal Diffusivity, mm2/s 75
76
Thermal Shock Resistance, points 6.5 to 13
11

Alloy Composition

Aluminum (Al), % 96.6 to 98.6
1.6 to 2.6
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.15 to 0.4
0 to 0.010
Iron (Fe), % 0 to 0.4
0 to 0.0050
Magnesium (Mg), % 0.7 to 1.0
96.3 to 98.3
Manganese (Mn), % 0.2 to 0.35
0.1 to 0.7
Nickel (Ni), % 0
0 to 0.0020
Silicon (Si), % 0.4 to 0.7
0 to 0.1
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0 to 0.2
Residuals, % 0
0 to 0.010