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EN 1.0566 Steel vs. EN 1.8868 Steel

Both EN 1.0566 steel and EN 1.8868 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0566 steel and the bottom bar is EN 1.8868 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
25
Fatigue Strength, MPa 270
260
Impact Strength: V-Notched Charpy, J 79
90
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
350
Tensile Strength: Ultimate (UTS), MPa 550
540
Tensile Strength: Yield (Proof), MPa 370
350

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
48
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
2.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 22
21
Embodied Water, L/kg 50
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 360
330
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 17
16

Alloy Composition

Aluminum (Al), % 0.020 to 0.024
0
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.18
0 to 0.16
Chromium (Cr), % 0 to 0.3
0 to 0.3
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 96.2 to 98.9
96.4 to 100
Manganese (Mn), % 1.1 to 1.7
0 to 1.5
Molybdenum (Mo), % 0 to 0.080
0 to 0.25
Nickel (Ni), % 0 to 0.5
0 to 0.5
Niobium (Nb), % 0 to 0.050
0 to 0.050
Nitrogen (N), % 0 to 0.012
0 to 0.015
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.0080
0 to 0.0080
Titanium (Ti), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.1
0 to 0.060
Zirconium (Zr), % 0
0 to 0.050