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EN 1.4401 Stainless Steel vs. 514.0 Aluminum

EN 1.4401 stainless steel belongs to the iron alloys classification, while 514.0 aluminum belongs to the aluminum alloys. There are 31 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 1.4401 stainless steel and the bottom bar is 514.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
50
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 14 to 40
7.3
Fatigue Strength, MPa 200 to 320
48
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
25
Shear Strength, MPa 410 to 550
140
Tensile Strength: Ultimate (UTS), MPa 600 to 900
180
Tensile Strength: Yield (Proof), MPa 230 to 570
74

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 950
170
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
610
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 15
140
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
120

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 3.8
8.9
Embodied Energy, MJ/kg 52
150
Embodied Water, L/kg 150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
11
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 800
41
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 21 to 32
19
Strength to Weight: Bending, points 20 to 26
26
Thermal Diffusivity, mm2/s 4.0
57
Thermal Shock Resistance, points 13 to 20
7.9

Alloy Composition

Aluminum (Al), % 0
93.6 to 96.5
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 62.8 to 71.5
0 to 0.5
Magnesium (Mg), % 0
3.5 to 4.5
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 10 to 13
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15