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EN 1.3566 Steel vs. EN 1.7003 Steel

Both EN 1.3566 steel and EN 1.7003 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 1.7003 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 220
150 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 490 to 1380
520 to 1780

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 45
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 52
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 49
18 to 63
Strength to Weight: Bending, points 17 to 35
18 to 42
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 14 to 40
15 to 53

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0.12 to 0.18
0.35 to 0.42
Chromium (Cr), % 0.9 to 1.2
0.4 to 0.6
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.8 to 98.4
97.7 to 98.8
Manganese (Mn), % 0.6 to 0.9
0.5 to 0.8
Molybdenum (Mo), % 0.15 to 0.25
0
Oxygen (O), % 0 to 0.0020
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035

Comparable Variants