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N08031 Stainless Steel vs. AISI 420 Stainless Steel

Both N08031 stainless steel and AISI 420 stainless steel are iron alloys. They have 47% of their average alloy composition in common. There are 30 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 N08031 stainless steel and the bottom bar is AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 45
8.0 to 15
Fatigue Strength, MPa 290
220 to 670
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
76
Shear Strength, MPa 510
420 to 1010
Tensile Strength: Ultimate (UTS), MPa 730
690 to 1720
Tensile Strength: Yield (Proof), MPa 310
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 460
390
Maximum Temperature: Mechanical, °C 1100
620
Melting Completion (Liquidus), °C 1440
1510
Melting Onset (Solidus), °C 1390
1450
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
27
Thermal Expansion, µm/m-K 18
10

Otherwise Unclassified Properties

Base Metal Price, % relative 39
7.5
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 7.1
2.0
Embodied Energy, MJ/kg 96
28
Embodied Water, L/kg 240
100

Common Calculations

PREN (Pitting Resistance) 52
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 230
380 to 4410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
25 to 62
Strength to Weight: Bending, points 22
22 to 41
Thermal Diffusivity, mm2/s 3.1
7.3
Thermal Shock Resistance, points 14
25 to 62

Alloy Composition

Carbon (C), % 0 to 0.015
0.15 to 0.4
Chromium (Cr), % 26 to 28
12 to 14
Copper (Cu), % 1.0 to 1.4
0
Iron (Fe), % 29 to 36.9
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), % 30 to 32
0 to 0.75
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030