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EN 1.6563 Steel vs. EN 1.7725 Steel

Both EN 1.6563 steel and EN 1.7725 steel are iron alloys. They have a very high 98% 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 1.6563 steel and the bottom bar is EN 1.7725 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 620 to 1850
830 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
440
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
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
2.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.8
Embodied Energy, MJ/kg 22
24
Embodied Water, L/kg 54
54

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 65
29 to 35
Strength to Weight: Bending, points 21 to 43
25 to 28
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 18 to 54
24 to 29

Alloy Composition

Carbon (C), % 0.38 to 0.44
0.27 to 0.34
Chromium (Cr), % 0.7 to 0.9
1.3 to 1.7
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 94.9 to 96.5
95.7 to 97.5
Manganese (Mn), % 0.6 to 0.9
0.6 to 1.0
Molybdenum (Mo), % 0.15 to 0.3
0.3 to 0.5
Nickel (Ni), % 1.7 to 2.0
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.6
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15

Comparable Variants