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AISI 420 Stainless Steel vs. N08801 Stainless Steel

Both AISI 420 stainless steel and N08801 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 (2, in this case) are not shown.

For each property being compared, the top bar is AISI 420 stainless steel and the bottom bar is N08801 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 8.0 to 15
34
Fatigue Strength, MPa 220 to 670
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 420 to 1010
570
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
860
Tensile Strength: Yield (Proof), MPa 380 to 1310
190

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
630
Maximum Temperature: Mechanical, °C 620
1090
Melting Completion (Liquidus), °C 1510
1390
Melting Onset (Solidus), °C 1450
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
12
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
30
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.0
5.5
Embodied Energy, MJ/kg 28
79
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 14
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
220
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
92
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 62
30
Strength to Weight: Bending, points 22 to 41
25
Thermal Diffusivity, mm2/s 7.3
3.3
Thermal Shock Resistance, points 25 to 62
20

Alloy Composition

Carbon (C), % 0.15 to 0.4
0 to 0.1
Chromium (Cr), % 12 to 14
19 to 22
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 82.3 to 87.9
39.5 to 50.3
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
30 to 34
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.75 to 1.5