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238.0 Aluminum vs. EN 1.4507 Stainless Steel

238.0 aluminum belongs to the aluminum alloys classification, while EN 1.4507 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 238.0 aluminum and the bottom bar is EN 1.4507 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
200
Elongation at Break, % 1.5
25
Fatigue Strength, MPa 110
410
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 28
80
Tensile Strength: Ultimate (UTS), MPa 210
840
Tensile Strength: Yield (Proof), MPa 170
590

Thermal Properties

Latent Heat of Fusion, J/g 430
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 510
1390
Specific Heat Capacity, J/kg-K 840
470
Thermal Conductivity, W/m-K 100
15
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 67
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
21
Density, g/cm3 3.4
7.8
Embodied Carbon, kg CO2/kg material 7.4
4.0
Embodied Energy, MJ/kg 140
55
Embodied Water, L/kg 1040
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
190
Resilience: Unit (Modulus of Resilience), kJ/m3 180
850
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 42
25
Strength to Weight: Axial, points 17
30
Strength to Weight: Bending, points 23
25
Thermal Diffusivity, mm2/s 37
4.0
Thermal Shock Resistance, points 9.1
23

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 9.5 to 10.5
1.0 to 2.5
Iron (Fe), % 1.0 to 1.5
56.4 to 65.8
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 3.6 to 4.4
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 1.0 to 1.5
0