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238.0 Aluminum vs. EN 1.4877 Stainless Steel

238.0 aluminum belongs to the aluminum alloys classification, while EN 1.4877 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 1.4877 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
200
Elongation at Break, % 1.5
36
Fatigue Strength, MPa 110
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
79
Tensile Strength: Ultimate (UTS), MPa 210
630
Tensile Strength: Yield (Proof), MPa 170
200

Thermal Properties

Latent Heat of Fusion, J/g 430
310
Maximum Temperature: Mechanical, °C 170
1150
Melting Completion (Liquidus), °C 600
1400
Melting Onset (Solidus), °C 510
1360
Specific Heat Capacity, J/kg-K 840
470
Thermal Conductivity, W/m-K 100
12
Thermal Expansion, µm/m-K 21
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 67
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
37
Density, g/cm3 3.4
8.0
Embodied Carbon, kg CO2/kg material 7.4
6.2
Embodied Energy, MJ/kg 140
89
Embodied Water, L/kg 1040
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
180
Resilience: Unit (Modulus of Resilience), kJ/m3 180
100
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 42
24
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 37
3.2
Thermal Shock Resistance, points 9.1
15

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0 to 0.025
Carbon (C), % 0
0.040 to 0.080
Cerium (Ce), % 0
0.050 to 0.1
Chromium (Cr), % 0
26 to 28
Copper (Cu), % 9.5 to 10.5
0
Iron (Fe), % 1.0 to 1.5
36.4 to 42.3
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 3.6 to 4.4
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 1.0 to 1.5
0