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EN 1.5501 Steel vs. SAE-AISI 50B44 Steel

Both EN 1.5501 steel and SAE-AISI 50B44 steel are iron alloys. Their average alloy composition is basically identical. There are 31 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 1.5501 steel and the bottom bar is SAE-AISI 50B44 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 150
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 17
22
Fatigue Strength, MPa 180 to 270
250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 270 to 310
360
Tensile Strength: Ultimate (UTS), MPa 390 to 510
570
Tensile Strength: Yield (Proof), MPa 260 to 420
360

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 52
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 46
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 83
110
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 460
350
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 14 to 18
20
Strength to Weight: Bending, points 15 to 18
20
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 11 to 15
17

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0.00050 to 0.0030
Carbon (C), % 0.13 to 0.16
0.43 to 0.48
Chromium (Cr), % 0
0.2 to 0.6
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98.4 to 99.269
97.5 to 98.5
Manganese (Mn), % 0.6 to 0.8
0.75 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.3
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040