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EN 1.4912 Stainless Steel vs. 5083 Aluminum

EN 1.4912 stainless steel belongs to the iron alloys classification, while 5083 aluminum belongs to the aluminum alloys. There are 32 material properties with values for both materials. Properties with values for just one material (3, 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 1.4912 stainless steel and the bottom bar is 5083 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
75 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 40
1.1 to 17
Fatigue Strength, MPa 200
93 to 190
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 420
170 to 220
Tensile Strength: Ultimate (UTS), MPa 610
290 to 390
Tensile Strength: Yield (Proof), MPa 230
110 to 340

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Corrosion, °C 520
65
Maximum Temperature: Mechanical, °C 940
190
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1390
580
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 16
120
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
29
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
96

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.8
8.9
Embodied Energy, MJ/kg 55
150
Embodied Water, L/kg 140
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
4.2 to 42
Resilience: Unit (Modulus of Resilience), kJ/m3 130
95 to 860
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 22
29 to 40
Strength to Weight: Bending, points 20
36 to 44
Thermal Diffusivity, mm2/s 4.2
48
Thermal Shock Resistance, points 14
12 to 17

Alloy Composition

Aluminum (Al), % 0
92.4 to 95.6
Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 17 to 19
0.050 to 0.25
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 64.6 to 73.6
0 to 0.4
Magnesium (Mg), % 0
4.0 to 4.9
Manganese (Mn), % 0 to 2.0
0.4 to 1.0
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
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
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15