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SAE-AISI S6 Steel vs. N08366 Stainless Steel

Both SAE-AISI S6 steel and N08366 stainless steel are iron alloys. They have 50% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S6 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 72
80
Tensile Strength: Ultimate (UTS), MPa 670 to 1920
590

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 41
13
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2
33
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.3
6.2
Embodied Energy, MJ/kg 33
84
Embodied Water, L/kg 56
200

Common Calculations

PREN (Pitting Resistance) 2.7
42
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 70
20
Strength to Weight: Bending, points 22 to 45
19
Thermal Diffusivity, mm2/s 11
3.4
Thermal Shock Resistance, points 22 to 64
13

Alloy Composition

Carbon (C), % 0.4 to 0.5
0 to 0.035
Chromium (Cr), % 1.2 to 1.5
20 to 22
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 92.8 to 94.7
42.4 to 50.5
Manganese (Mn), % 1.2 to 1.5
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.5
6.0 to 7.0
Nickel (Ni), % 0
23.5 to 25.5
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 2.0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.2 to 0.4
0