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EN 1.7240 Steel vs. EN 1.8516 Steel

Both EN 1.7240 steel and EN 1.8516 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 25 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 1.7240 steel and the bottom bar is EN 1.8516 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 480
330
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 670 to 1990
1100

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
470
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
39
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 2.4
3.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 20
22
Embodied Water, L/kg 50
61

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 71
39
Strength to Weight: Bending, points 22 to 45
30
Thermal Diffusivity, mm2/s 12
10
Thermal Shock Resistance, points 20 to 59
32

Alloy Composition

Carbon (C), % 0.56 to 0.64
0.2 to 0.27
Chromium (Cr), % 0.7 to 1.0
3.0 to 3.5
Iron (Fe), % 96.7 to 97.9
94.6 to 96.1
Manganese (Mn), % 0.7 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0.15 to 0.25
0.5 to 0.7
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035