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EN 1.3566 Steel vs. EN 1.3518 Steel

Both EN 1.3566 steel and EN 1.3518 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.3566 steel and the bottom bar is EN 1.3518 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 220
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 490 to 1380
630

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
420
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
43
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 20
20
Embodied Water, L/kg 52
51

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 49
23
Strength to Weight: Bending, points 17 to 35
21
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 14 to 40
19

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.050
Carbon (C), % 0.12 to 0.18
0.93 to 1.1
Chromium (Cr), % 0.9 to 1.2
0.9 to 1.2
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 96.8 to 98.4
96.3 to 97.8
Manganese (Mn), % 0.6 to 0.9
0.9 to 1.2
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.1
Oxygen (O), % 0 to 0.0020
0 to 0.0015
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0.45 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030