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EN 1.8201 Steel vs. SAE-AISI 5155 Steel

Both EN 1.8201 steel and SAE-AISI 5155 steel are iron alloys. They have a very high 96% 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 1.8201 steel and the bottom bar is SAE-AISI 5155 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
21
Fatigue Strength, MPa 310
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 390
390
Tensile Strength: Ultimate (UTS), MPa 630
620
Tensile Strength: Yield (Proof), MPa 450
380

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
420
Melting Completion (Liquidus), °C 1500
1450
Melting Onset (Solidus), °C 1450
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.1
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.4
Embodied Energy, MJ/kg 36
19
Embodied Water, L/kg 59
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 530
380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 18
20

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.040 to 0.1
0.51 to 0.59
Chromium (Cr), % 1.9 to 2.6
0.7 to 0.9
Iron (Fe), % 93.6 to 96.2
97.2 to 97.9
Manganese (Mn), % 0.1 to 0.6
0.7 to 0.9
Molybdenum (Mo), % 0.050 to 0.3
0
Niobium (Nb), % 0.020 to 0.080
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0.0050 to 0.060
0
Tungsten (W), % 1.5 to 1.8
0
Vanadium (V), % 0.2 to 0.3
0