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SAE-AISI O6 Steel vs. S35115 Stainless Steel

Both SAE-AISI O6 steel and S35115 stainless steel are iron alloys. They have 54% 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 O6 steel and the bottom bar is S35115 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 71
79
Tensile Strength: Ultimate (UTS), MPa 670 to 2070
670

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 43
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
26
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.8
Embodied Energy, MJ/kg 21
67
Embodied Water, L/kg 47
190

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 74
24
Strength to Weight: Bending, points 22 to 47
22
Thermal Diffusivity, mm2/s 12
3.9
Thermal Shock Resistance, points 22 to 69
15

Alloy Composition

Carbon (C), % 1.3 to 1.6
0 to 0.030
Chromium (Cr), % 0 to 0.3
23 to 25
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 94.6 to 97.7
47.6 to 55.8
Manganese (Mn), % 0.3 to 1.1
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.3
1.5 to 2.5
Nickel (Ni), % 0 to 0.3
19 to 22
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.55 to 1.5
0.5 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.015