MakeItFrom.com
Menu (ESC)

4145 Aluminum vs. S21460 Stainless Steel

4145 aluminum belongs to the aluminum alloys classification, while S21460 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 S21460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 2.2
46
Fatigue Strength, MPa 48
390
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
77
Shear Strength, MPa 69
580
Tensile Strength: Ultimate (UTS), MPa 120
830
Tensile Strength: Yield (Proof), MPa 68
430

Thermal Properties

Latent Heat of Fusion, J/g 540
290
Maximum Temperature: Mechanical, °C 160
920
Melting Completion (Liquidus), °C 590
1380
Melting Onset (Solidus), °C 520
1330
Specific Heat Capacity, J/kg-K 880
480
Thermal Expansion, µm/m-K 21
18

Otherwise Unclassified Properties

Base Metal Price, % relative 10
14
Density, g/cm3 2.8
7.6
Embodied Carbon, kg CO2/kg material 7.6
3.0
Embodied Energy, MJ/kg 140
43
Embodied Water, L/kg 1040
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
320
Resilience: Unit (Modulus of Resilience), kJ/m3 31
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 12
30
Strength to Weight: Bending, points 19
26
Thermal Shock Resistance, points 5.5
17

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 to 0.12
Chromium (Cr), % 0 to 0.15
17 to 19
Copper (Cu), % 3.3 to 4.7
0
Iron (Fe), % 0 to 0.8
57.3 to 63.7
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.15
14 to 16
Nickel (Ni), % 0
5.0 to 6.0
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 9.3 to 10.7
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0