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A242.0 Aluminum vs. EN 1.4658 Stainless Steel

A242.0 aluminum belongs to the aluminum alloys classification, while EN 1.4658 stainless steel belongs to the iron alloys. There are 24 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 A242.0 aluminum and the bottom bar is EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
260
Elastic (Young's, Tensile) Modulus, GPa 73
210
Elongation at Break, % 1.6
28
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
81
Tensile Strength: Ultimate (UTS), MPa 220
900

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 210
1100
Melting Completion (Liquidus), °C 680
1450
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 140
16
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 8.3
4.5
Embodied Energy, MJ/kg 150
61
Embodied Water, L/kg 1130
200

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 20
32
Strength to Weight: Bending, points 26
26
Thermal Diffusivity, mm2/s 52
4.3
Thermal Shock Resistance, points 9.3
24

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.15 to 0.25
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 3.7 to 4.5
0 to 1.0
Iron (Fe), % 0 to 0.8
50.9 to 63.7
Magnesium (Mg), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 1.8 to 2.3
5.5 to 9.5
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0.070 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0