MakeItFrom.com
Menu (ESC)

4145 Aluminum vs. SAE-AISI H11 Steel

4145 aluminum belongs to the aluminum alloys classification, while SAE-AISI H11 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 4145 aluminum and the bottom bar is SAE-AISI H11 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
74
Tensile Strength: Ultimate (UTS), MPa 120
690 to 1840

Thermal Properties

Latent Heat of Fusion, J/g 540
270
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 520
1410
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 100
42
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 84
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
5.5
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 7.6
3.0
Embodied Energy, MJ/kg 140
43
Embodied Water, L/kg 1040
75

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 12
25 to 66
Strength to Weight: Bending, points 19
22 to 43
Thermal Diffusivity, mm2/s 42
11
Thermal Shock Resistance, points 5.5
22 to 58

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
Aluminum (Al), % 83 to 87.4
0
Carbon (C), % 0
0.33 to 0.43
Chromium (Cr), % 0 to 0.15
4.8 to 5.5
Copper (Cu), % 3.3 to 4.7
0 to 0.25
Iron (Fe), % 0 to 0.8
89.6 to 92.5
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.15
0.2 to 0.5
Molybdenum (Mo), % 0
1.1 to 1.6
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 9.3 to 10.7
0.8 to 1.2
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.3 to 0.6
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0