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6262 Aluminum vs. SAE-AISI M4 Steel

6262 aluminum belongs to the aluminum alloys classification, while SAE-AISI M4 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 6262 aluminum and the bottom bar is SAE-AISI M4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
76
Tensile Strength: Ultimate (UTS), MPa 290 to 390
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 650
1610
Melting Onset (Solidus), °C 580
1560
Specific Heat Capacity, J/kg-K 890
440
Thermal Conductivity, W/m-K 170
25
Thermal Expansion, µm/m-K 23
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
25
Density, g/cm3 2.8
8.3
Embodied Carbon, kg CO2/kg material 8.3
14
Embodied Energy, MJ/kg 150
210
Embodied Water, L/kg 1190
110

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 48
23
Strength to Weight: Axial, points 29 to 39
26 to 72
Strength to Weight: Bending, points 35 to 42
23 to 45
Thermal Diffusivity, mm2/s 69
6.9
Thermal Shock Resistance, points 13 to 18
24 to 68

Alloy Composition

Aluminum (Al), % 94.7 to 97.8
0
Bismuth (Bi), % 0.4 to 0.7
0
Carbon (C), % 0
1.3 to 1.4
Chromium (Cr), % 0.040 to 0.14
3.8 to 4.8
Copper (Cu), % 0.15 to 0.4
0 to 0.25
Iron (Fe), % 0 to 0.7
75.9 to 81.4
Lead (Pb), % 0.4 to 0.7
0
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0 to 0.15
0.15 to 0.4
Molybdenum (Mo), % 0
4.3 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.4 to 0.8
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Tungsten (W), % 0
5.3 to 6.5
Vanadium (V), % 0
3.8 to 4.5
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0