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AISI 409 Stainless Steel vs. S66286 Stainless Steel

Both AISI 409 stainless steel and S66286 stainless steel are iron alloys. They have 67% of their average alloy composition in common.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
17 to 40
Fatigue Strength, MPa 140
240 to 410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
75
Shear Strength, MPa 270
420 to 630
Tensile Strength: Ultimate (UTS), MPa 420
620 to 1020
Tensile Strength: Yield (Proof), MPa 200
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 450
780
Maximum Temperature: Mechanical, °C 710
920
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
26
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
6.0
Embodied Energy, MJ/kg 28
87
Embodied Water, L/kg 94
170

Common Calculations

PREN (Pitting Resistance) 11
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 100
190 to 1150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
22 to 36
Strength to Weight: Bending, points 16
20 to 28
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 15
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 10.5 to 11.7
13.5 to 16
Iron (Fe), % 84.9 to 89.5
49.1 to 59.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 0 to 0.5
24 to 27
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.75
1.9 to 2.4
Vanadium (V), % 0
0.1 to 0.5