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N08366 Stainless Steel vs. AISI 420 Stainless Steel

Both N08366 stainless steel and AISI 420 stainless steel are iron alloys. They have 61% 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 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
8.0 to 15
Fatigue Strength, MPa 190
220 to 670
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 82
84
Shear Modulus, GPa 80
76
Shear Strength, MPa 390
420 to 1010
Tensile Strength: Ultimate (UTS), MPa 590
690 to 1720
Tensile Strength: Yield (Proof), MPa 240
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1100
620
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
27
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 33
7.5
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.2
2.0
Embodied Energy, MJ/kg 84
28
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 42
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 150
380 to 4410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
25 to 62
Strength to Weight: Bending, points 19
22 to 41
Thermal Diffusivity, mm2/s 3.4
7.3
Thermal Shock Resistance, points 13
25 to 62

Alloy Composition

Carbon (C), % 0 to 0.035
0.15 to 0.4
Chromium (Cr), % 20 to 22
12 to 14
Iron (Fe), % 42.4 to 50.5
82.3 to 87.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0 to 0.5
Nickel (Ni), % 23.5 to 25.5
0 to 0.75
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030