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EN 1.4971 Stainless Steel vs. 5083 Aluminum

EN 1.4971 stainless steel belongs to the iron alloys classification, while 5083 aluminum belongs to the aluminum alloys. There are 30 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 EN 1.4971 stainless steel and the bottom bar is 5083 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
75 to 110
Elastic (Young's, Tensile) Modulus, GPa 210
68
Elongation at Break, % 34
1.1 to 17
Fatigue Strength, MPa 270
93 to 190
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 81
26
Shear Strength, MPa 530
170 to 220
Tensile Strength: Ultimate (UTS), MPa 800
290 to 390
Tensile Strength: Yield (Proof), MPa 340
110 to 340

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Corrosion, °C 570
65
Maximum Temperature: Mechanical, °C 1100
190
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
580
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 13
120
Thermal Expansion, µm/m-K 15
24

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.5
Density, g/cm3 8.4
2.7
Embodied Carbon, kg CO2/kg material 7.6
8.9
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 300
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
4.2 to 42
Resilience: Unit (Modulus of Resilience), kJ/m3 280
95 to 860
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 26
29 to 40
Strength to Weight: Bending, points 23
36 to 44
Thermal Diffusivity, mm2/s 3.4
48
Thermal Shock Resistance, points 19
12 to 17

Alloy Composition

Aluminum (Al), % 0
92.4 to 95.6
Carbon (C), % 0.080 to 0.16
0
Chromium (Cr), % 20 to 22.5
0.050 to 0.25
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 24.3 to 37.1
0 to 0.4
Magnesium (Mg), % 0
4.0 to 4.9
Manganese (Mn), % 0 to 2.0
0.4 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.15
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15