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N08366 Stainless Steel vs. AISI 309 Stainless Steel

Both N08366 stainless steel and AISI 309 stainless steel are iron alloys. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is N08366 stainless steel and the bottom bar is AISI 309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
34 to 47
Fatigue Strength, MPa 190
250 to 280
Poisson's Ratio 0.28
0.27
Rockwell B Hardness 82
84
Shear Modulus, GPa 80
78
Shear Strength, MPa 390
420 to 470
Tensile Strength: Ultimate (UTS), MPa 590
600 to 710
Tensile Strength: Yield (Proof), MPa 240
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 430
440
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
16
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 33
19
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.2
3.6
Embodied Energy, MJ/kg 84
51
Embodied Water, L/kg 200
170

Common Calculations

PREN (Pitting Resistance) 42
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 150
170 to 310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
21 to 25
Strength to Weight: Bending, points 19
20 to 23
Thermal Diffusivity, mm2/s 3.4
4.3
Thermal Shock Resistance, points 13
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.035
0 to 0.2
Chromium (Cr), % 20 to 22
22 to 24
Iron (Fe), % 42.4 to 50.5
58 to 66
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 23.5 to 25.5
12 to 15
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030