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EN 1.7720 Steel vs. EN 1.6563 Steel

Both EN 1.7720 steel and EN 1.6563 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.7720 steel and the bottom bar is EN 1.6563 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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 590
620 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
420
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
3.6
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.2
1.7
Embodied Energy, MJ/kg 30
22
Embodied Water, L/kg 51
54

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
22 to 65
Strength to Weight: Bending, points 20
21 to 43
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 17
18 to 54

Alloy Composition

Carbon (C), % 0.1 to 0.15
0.38 to 0.44
Chromium (Cr), % 0.3 to 0.5
0.7 to 0.9
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 96.6 to 98.6
94.9 to 96.5
Manganese (Mn), % 0.4 to 0.7
0.6 to 0.9
Molybdenum (Mo), % 0.4 to 0.6
0.15 to 0.3
Nickel (Ni), % 0 to 0.4
1.7 to 2.0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.45
0 to 0.3
Sulfur (S), % 0 to 0.020
0 to 0.025
Vanadium (V), % 0.22 to 0.3
0