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EN 1.3555 Steel vs. SAE-AISI 50B44 Steel

Both EN 1.3555 steel and SAE-AISI 50B44 steel are iron alloys. Both are furnished in the annealed condition. They have 88% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.3555 steel and the bottom bar is SAE-AISI 50B44 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 770
570

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 540
410
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.6
1.4
Embodied Energy, MJ/kg 81
19
Embodied Water, L/kg 90
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27
20
Strength to Weight: Bending, points 23
20
Thermal Shock Resistance, points 22
17

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.1 to 0.15
0.43 to 0.48
Chromium (Cr), % 3.9 to 4.3
0.2 to 0.6
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 85.4 to 87.7
97.5 to 98.5
Manganese (Mn), % 0.15 to 0.35
0.75 to 1.0
Molybdenum (Mo), % 4.0 to 4.5
0
Nickel (Ni), % 3.2 to 3.6
0
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0.1 to 0.25
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 1.0 to 1.3
0