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SAE-AISI P6 Steel vs. N08366 Stainless Steel

Both SAE-AISI P6 steel and N08366 stainless steel are iron alloys. They have 52% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P6 steel and the bottom bar is N08366 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 630 to 1930
590

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 43
13
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 4.6
33
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 1.8
6.2
Embodied Energy, MJ/kg 24
84
Embodied Water, L/kg 59
200

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 68
20
Strength to Weight: Bending, points 21 to 44
19
Thermal Diffusivity, mm2/s 11
3.4
Thermal Shock Resistance, points 21 to 63
13

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.035
Chromium (Cr), % 1.3 to 1.8
20 to 22
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 92.9 to 95
42.4 to 50.5
Manganese (Mn), % 0.35 to 0.7
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 3.3 to 3.8
23.5 to 25.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.1 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030