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SAE-AISI O2 Steel vs. S13800 Stainless Steel

Both SAE-AISI O2 steel and S13800 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O2 steel and the bottom bar is S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 640 to 2050
980 to 1730

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
16
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
3.4
Embodied Energy, MJ/kg 26
46
Embodied Water, L/kg 50
140

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 73
35 to 61
Strength to Weight: Bending, points 21 to 46
28 to 41
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 22 to 70
33 to 58

Alloy Composition

Aluminum (Al), % 0
0.9 to 1.4
Carbon (C), % 0.85 to 1.0
0 to 0.050
Chromium (Cr), % 0 to 0.5
12.3 to 13.2
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 95 to 97.8
73.6 to 77.3
Manganese (Mn), % 1.4 to 1.8
0 to 0.2
Molybdenum (Mo), % 0 to 0.3
2.0 to 3.0
Nickel (Ni), % 0 to 0.3
7.5 to 8.5
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0080
Vanadium (V), % 0 to 0.3
0