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

Both EN 1.4659 stainless steel and SAE-AISI 50B44 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 EN 1.4659 stainless steel and the bottom bar is SAE-AISI 50B44 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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