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EN 1.0254 Steel vs. EN 1.0566 Steel

Both EN 1.0254 steel and EN 1.0566 steel are iron alloys. Both are furnished in the normalized condition. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.0254 steel and the bottom bar is EN 1.0566 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
24
Fatigue Strength, MPa 190
270
Impact Strength: V-Notched Charpy, J 38
79
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 280
350
Tensile Strength: Ultimate (UTS), MPa 430
550
Tensile Strength: Yield (Proof), MPa 250
370

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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
50
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.6
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 47
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 170
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 16
19
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 14
17

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Carbon (C), % 0 to 0.16
0 to 0.18
Chromium (Cr), % 0 to 0.3
0 to 0.3
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 97.2 to 100
96.2 to 98.9
Manganese (Mn), % 0 to 1.2
1.1 to 1.7
Molybdenum (Mo), % 0 to 0.080
0 to 0.080
Nickel (Ni), % 0 to 0.3
0 to 0.5
Niobium (Nb), % 0 to 0.010
0 to 0.050
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.0080
Titanium (Ti), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0 to 0.020
0 to 0.1