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AISI 440C Stainless Steel vs. N08020 Stainless Steel

Both AISI 440C stainless steel and N08020 stainless steel are iron alloys. They have 55% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 440C stainless steel and the bottom bar is N08020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 2.0 to 14
15 to 34
Fatigue Strength, MPa 260 to 840
210 to 240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 430 to 1120
380 to 410
Tensile Strength: Ultimate (UTS), MPa 710 to 1970
610 to 620
Tensile Strength: Yield (Proof), MPa 450 to 1900
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
490
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 22
12
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
38
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.2
6.6
Embodied Energy, MJ/kg 31
92
Embodied Water, L/kg 120
220

Common Calculations

PREN (Pitting Resistance) 18
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 39 to 88
83 to 170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 71
21
Strength to Weight: Bending, points 23 to 46
20
Thermal Diffusivity, mm2/s 6.0
3.2
Thermal Shock Resistance, points 26 to 71
15

Alloy Composition

Carbon (C), % 1.0 to 1.2
0 to 0.070
Chromium (Cr), % 16 to 18
19 to 21
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 78 to 83.1
29.9 to 44
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.75
2.0 to 3.0
Nickel (Ni), % 0
32 to 38
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.035

Comparable Variants