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AISI 409Cb Stainless Steel vs. Nickel 686

AISI 409Cb stainless steel belongs to the iron alloys classification, while nickel 686 belongs to the nickel alloys. There are 30 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 AISI 409Cb stainless steel and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 24
51
Fatigue Strength, MPa 140
410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
77
Shear Strength, MPa 270
560
Tensile Strength: Ultimate (UTS), MPa 420
780
Tensile Strength: Yield (Proof), MPa 200
350

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 710
980
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 25
9.8
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
70
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 2.2
12
Embodied Energy, MJ/kg 31
170
Embodied Water, L/kg 94
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
320
Resilience: Unit (Modulus of Resilience), kJ/m3 100
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 15
24
Strength to Weight: Bending, points 16
21
Thermal Diffusivity, mm2/s 6.7
2.6
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.010
Chromium (Cr), % 10.5 to 11.7
19 to 23
Iron (Fe), % 84.9 to 89.5
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 0.75
Molybdenum (Mo), % 0
15 to 17
Nickel (Ni), % 0 to 0.5
49.5 to 63
Niobium (Nb), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.040
0 to 0.020
Titanium (Ti), % 0
0.020 to 0.25
Tungsten (W), % 0
3.0 to 4.4