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EN 1.7231 Steel vs. EN 1.8201 Steel

Both EN 1.7231 steel and EN 1.8201 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.7231 steel and the bottom bar is EN 1.8201 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 280
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 12
20
Fatigue Strength, MPa 360 to 500
310
Impact Strength: V-Notched Charpy, J 28 to 30
38
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 790 to 930
630
Tensile Strength: Yield (Proof), MPa 570 to 800
450

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
450
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
7.0
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.5
2.5
Embodied Energy, MJ/kg 20
36
Embodied Water, L/kg 51
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 870 to 1700
530
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 33
22
Strength to Weight: Bending, points 24 to 27
20
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 23 to 27
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.030
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 0.38 to 0.45
0.040 to 0.1
Chromium (Cr), % 0.8 to 1.2
1.9 to 2.6
Iron (Fe), % 96.4 to 98.1
93.6 to 96.2
Manganese (Mn), % 0.6 to 1.0
0.1 to 0.6
Molybdenum (Mo), % 0.15 to 0.3
0.050 to 0.3
Niobium (Nb), % 0
0.020 to 0.080
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.0050 to 0.060
Tungsten (W), % 0
1.5 to 1.8
Vanadium (V), % 0
0.2 to 0.3