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EN 1.3566 Steel vs. EN 1.7709 Steel

Both EN 1.3566 steel and EN 1.7709 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.3566 steel and the bottom bar is EN 1.7709 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 220
200 to 230
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
650 to 780

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
33
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
3.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.3
Embodied Energy, MJ/kg 20
32
Embodied Water, L/kg 52
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 49
23 to 27
Strength to Weight: Bending, points 17 to 35
21 to 24
Thermal Diffusivity, mm2/s 12
8.9
Thermal Shock Resistance, points 14 to 40
22 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.030
Carbon (C), % 0.12 to 0.18
0.17 to 0.25
Chromium (Cr), % 0.9 to 1.2
1.2 to 1.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.8 to 98.4
95.2 to 97.5
Manganese (Mn), % 0.6 to 0.9
0.4 to 0.8
Molybdenum (Mo), % 0.15 to 0.25
0.55 to 0.8
Nickel (Ni), % 0
0 to 0.6
Oxygen (O), % 0 to 0.0020
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.2 to 0.35

Comparable Variants