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EN 1.4458 Stainless Steel vs. 242.0 Aluminum

EN 1.4458 stainless steel belongs to the iron alloys classification, while 242.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, 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 EN 1.4458 stainless steel and the bottom bar is 242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
70 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 34
0.5 to 1.5
Fatigue Strength, MPa 150
55 to 110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
27
Tensile Strength: Ultimate (UTS), MPa 510
180 to 290
Tensile Strength: Yield (Proof), MPa 190
120 to 220

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1100
210
Melting Completion (Liquidus), °C 1420
640
Melting Onset (Solidus), °C 1370
530
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 16
130 to 170
Thermal Expansion, µm/m-K 15
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
33 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
96 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 30
12
Density, g/cm3 8.0
3.1
Embodied Carbon, kg CO2/kg material 5.4
8.3
Embodied Energy, MJ/kg 75
150
Embodied Water, L/kg 200
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
1.3 to 3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 89
110 to 340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 17
16 to 26
Strength to Weight: Bending, points 18
23 to 32
Thermal Diffusivity, mm2/s 4.2
50 to 62
Thermal Shock Resistance, points 12
8.0 to 13

Alloy Composition


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Aluminum (Al), % 0
88.4 to 93.6
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19 to 22
0 to 0.25
Copper (Cu), % 0 to 2.0
3.5 to 4.5
Iron (Fe), % 40.2 to 53
0 to 1.0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 26 to 30
1.7 to 2.3
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15