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238.0 Aluminum vs. EN 1.4477 Stainless Steel

238.0 aluminum belongs to the aluminum alloys classification, while EN 1.4477 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 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
210
Elongation at Break, % 1.5
22 to 23
Fatigue Strength, MPa 110
420 to 490
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 28
81
Tensile Strength: Ultimate (UTS), MPa 210
880 to 930
Tensile Strength: Yield (Proof), MPa 170
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 430
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 510
1380
Specific Heat Capacity, J/kg-K 840
480
Thermal Conductivity, W/m-K 100
13
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
20
Density, g/cm3 3.4
7.7
Embodied Carbon, kg CO2/kg material 7.4
3.7
Embodied Energy, MJ/kg 140
52
Embodied Water, L/kg 1040
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 180
940 to 1290
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 42
25
Strength to Weight: Axial, points 17
31 to 33
Strength to Weight: Bending, points 23
26 to 27
Thermal Diffusivity, mm2/s 37
3.5
Thermal Shock Resistance, points 9.1
23 to 25

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 9.5 to 10.5
0 to 0.8
Iron (Fe), % 1.0 to 1.5
56.6 to 63.6
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0.8 to 1.5
Molybdenum (Mo), % 0
1.5 to 2.6
Nickel (Ni), % 0
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 3.6 to 4.4
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 1.0 to 1.5
0