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SAE-AISI 50B44 Steel vs. EN 1.4659 Stainless Steel

Both SAE-AISI 50B44 steel and EN 1.4659 stainless steel are iron alloys. They have 42% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 50B44 steel and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
260
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22
49
Fatigue Strength, MPa 250
460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Shear Strength, MPa 360
640
Tensile Strength: Ultimate (UTS), MPa 570
900
Tensile Strength: Yield (Proof), MPa 360
480

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 46
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
6.5
Embodied Energy, MJ/kg 19
89
Embodied Water, L/kg 48
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
370
Resilience: Unit (Modulus of Resilience), kJ/m3 350
550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
31
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 12
3.2
Thermal Shock Resistance, points 17
19

Alloy Composition

Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.43 to 0.48
0 to 0.020
Chromium (Cr), % 0.2 to 0.6
23 to 25
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 97.5 to 98.5
35.7 to 45.7
Manganese (Mn), % 0.75 to 1.0
2.0 to 4.0
Molybdenum (Mo), % 0
5.5 to 6.5
Nickel (Ni), % 0
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.7
Sulfur (S), % 0 to 0.040
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5