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EN 1.8866 Steel vs. EN 1.8902 Steel

Both EN 1.8866 steel and EN 1.8902 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.8866 steel and the bottom bar is EN 1.8902 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
21
Fatigue Strength, MPa 260
290
Impact Strength: V-Notched Charpy, J 67
58
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
380
Tensile Strength: Ultimate (UTS), MPa 540
600
Tensile Strength: Yield (Proof), MPa 350
420

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
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 48
44
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
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.8
Embodied Energy, MJ/kg 21
24
Embodied Water, L/kg 48
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 330
470
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
21
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 16
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.16
0 to 0.22
Chromium (Cr), % 0 to 0.3
0 to 0.35
Copper (Cu), % 0 to 0.3
0 to 0.6
Iron (Fe), % 96.3 to 100
95 to 99.05
Manganese (Mn), % 0 to 1.5
1.0 to 1.8
Molybdenum (Mo), % 0 to 0.25
0 to 0.13
Nickel (Ni), % 0 to 0.5
0 to 0.85
Niobium (Nb), % 0 to 0.050
0 to 0.060
Nitrogen (N), % 0 to 0.015
0 to 0.027
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.65
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.030
0 to 0.060
Vanadium (V), % 0 to 0.060
0 to 0.22
Zirconium (Zr), % 0 to 0.050
0