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N08020 Stainless Steel vs. AISI 446 Stainless Steel

Both N08020 stainless steel and AISI 446 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is N08020 stainless steel and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 15 to 34
23
Fatigue Strength, MPa 210 to 240
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Shear Strength, MPa 380 to 410
360
Tensile Strength: Ultimate (UTS), MPa 610 to 620
570
Tensile Strength: Yield (Proof), MPa 270 to 420
300

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 490
440
Maximum Temperature: Mechanical, °C 1100
1180
Melting Completion (Liquidus), °C 1410
1510
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 460
490
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 38
12
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.6
2.4
Embodied Energy, MJ/kg 92
35
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 28
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 440
230
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 3.2
4.6
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.2
Chromium (Cr), % 19 to 21
23 to 27
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 29.9 to 44
69.2 to 77
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 32 to 38
0 to 0.75
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030