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SAE-AISI 50B44 Steel vs. EN 1.4762 Stainless Steel

Both SAE-AISI 50B44 steel and EN 1.4762 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 74% 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 SAE-AISI 50B44 steel and the bottom bar is EN 1.4762 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
13
Fatigue Strength, MPa 250
180
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Shear Strength, MPa 360
370
Tensile Strength: Ultimate (UTS), MPa 570
620
Tensile Strength: Yield (Proof), MPa 360
310

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1150
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 46
17
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
2.5
Embodied Energy, MJ/kg 19
37
Embodied Water, L/kg 48
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
67
Resilience: Unit (Modulus of Resilience), kJ/m3 350
250
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 20
23
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 12
4.6
Thermal Shock Resistance, points 17
22

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.7
Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.43 to 0.48
0 to 0.12
Chromium (Cr), % 0.2 to 0.6
23 to 26
Iron (Fe), % 97.5 to 98.5
69.7 to 75.1
Manganese (Mn), % 0.75 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0.7 to 1.4
Sulfur (S), % 0 to 0.040
0 to 0.015