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EN 1.0566 Steel vs. S31803 Stainless Steel

Both EN 1.0566 steel and S31803 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.0566 steel and the bottom bar is S31803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24
29
Fatigue Strength, MPa 270
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Shear Strength, MPa 350
460
Tensile Strength: Ultimate (UTS), MPa 550
710
Tensile Strength: Yield (Proof), MPa 370
500

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1060
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
3.6
Embodied Energy, MJ/kg 22
49
Embodied Water, L/kg 50
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 360
630
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 14
4.3
Thermal Shock Resistance, points 17
20

Alloy Composition

Aluminum (Al), % 0.020 to 0.024
0
Carbon (C), % 0 to 0.18
0 to 0.030
Chromium (Cr), % 0 to 0.3
21 to 23
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.2 to 98.9
63.7 to 71.9
Manganese (Mn), % 1.1 to 1.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.080
2.5 to 3.5
Nickel (Ni), % 0 to 0.5
4.5 to 6.5
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.012
0.080 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.0080
0 to 0.020
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.1
0