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AISI 409Cb Stainless Steel vs. SAE-AISI 50B60 Steel

Both AISI 409Cb stainless steel and SAE-AISI 50B60 steel are iron alloys. They have 89% of their average alloy composition in common. There are 30 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 AISI 409Cb stainless steel and the bottom bar is SAE-AISI 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
12 to 20
Fatigue Strength, MPa 140
240 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
72
Shear Strength, MPa 270
380
Tensile Strength: Ultimate (UTS), MPa 420
610 to 630
Tensile Strength: Yield (Proof), MPa 200
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 710
410
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
45
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 31
19
Embodied Water, L/kg 94
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 100
330 to 750
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
22 to 23
Strength to Weight: Bending, points 16
20 to 21
Thermal Diffusivity, mm2/s 6.7
12
Thermal Shock Resistance, points 15
20

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.060
0.56 to 0.64
Chromium (Cr), % 10.5 to 11.7
0.4 to 0.6
Iron (Fe), % 84.9 to 89.5
97.3 to 98.1
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.040