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444.0 Aluminum vs. EN 1.4542 Stainless Steel

444.0 aluminum belongs to the aluminum alloys classification, while EN 1.4542 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 444.0 aluminum and the bottom bar is EN 1.4542 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 25
5.7 to 20
Fatigue Strength, MPa 51
370 to 640
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 190
880 to 1470
Tensile Strength: Yield (Proof), MPa 83
580 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 500
280
Maximum Temperature: Mechanical, °C 170
860
Melting Completion (Liquidus), °C 610
1430
Melting Onset (Solidus), °C 600
1380
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
16
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 7.9
2.7
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 1110
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39
62 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 49
880 to 4360
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 20
31 to 52
Strength to Weight: Bending, points 28
26 to 37
Thermal Diffusivity, mm2/s 67
4.3
Thermal Shock Resistance, points 8.8
29 to 49

Alloy Composition

Aluminum (Al), % 90.5 to 93.5
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0 to 0.25
3.0 to 5.0
Iron (Fe), % 0 to 0.6
69.6 to 79
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.35
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 0
3.0 to 5.0
Niobium (Nb), % 0
0 to 0.45
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 6.5 to 7.5
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0