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A242.0 Aluminum vs. EN 1.4415 Stainless Steel

A242.0 aluminum belongs to the aluminum alloys classification, while EN 1.4415 stainless steel belongs to the iron alloys. There are 25 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 A242.0 aluminum and the bottom bar is EN 1.4415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.6
17 to 20
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 220
830 to 930

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Mechanical, °C 210
790
Melting Completion (Liquidus), °C 680
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 140
19
Thermal Expansion, µm/m-K 23
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 8.3
3.6
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1130
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 20
29 to 33
Strength to Weight: Bending, points 26
25 to 27
Thermal Diffusivity, mm2/s 52
5.1
Thermal Shock Resistance, points 9.3
30 to 34

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.15 to 0.25
11.5 to 13.5
Copper (Cu), % 3.7 to 4.5
0
Iron (Fe), % 0 to 0.8
75.9 to 82.4
Magnesium (Mg), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.1
0 to 0.5
Molybdenum (Mo), % 0
1.5 to 2.5
Nickel (Ni), % 1.8 to 2.3
4.5 to 6.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0.070 to 0.2
0 to 0.010
Vanadium (V), % 0
0.1 to 0.5
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0