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EN 1.7218 Steel vs. EN 1.3539 Steel

Both EN 1.7218 steel and EN 1.3539 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 1.7218 steel and the bottom bar is EN 1.3539 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 230
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 500 to 1550
670

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
450
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
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 7.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
3.2
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 52
57

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 55
24
Strength to Weight: Bending, points 18 to 38
22
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 15 to 46
20

Alloy Composition

Aluminum (Al), % 0 to 0.040
0 to 0.050
Carbon (C), % 0.22 to 0.29
0.93 to 1.1
Chromium (Cr), % 0.9 to 1.2
1.8 to 2.1
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 96.2 to 98.1
95.2 to 96.5
Manganese (Mn), % 0.6 to 0.9
0.8 to 1.1
Molybdenum (Mo), % 0.15 to 0.3
0.5 to 0.6
Nickel (Ni), % 0 to 0.3
0
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0.4 to 0.6
Sulfur (S), % 0 to 0.035
0 to 0.030