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SAE-AISI O2 Steel vs. EN 1.6368 Steel

Both SAE-AISI O2 steel and EN 1.6368 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O2 steel and the bottom bar is EN 1.6368 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 640 to 2050
660 to 690

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
3.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
1.7
Embodied Energy, MJ/kg 26
22
Embodied Water, L/kg 50
53

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 73
23 to 24
Strength to Weight: Bending, points 21 to 46
21 to 22
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 22 to 70
20

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.040
Carbon (C), % 0.85 to 1.0
0 to 0.17
Chromium (Cr), % 0 to 0.5
0 to 0.3
Copper (Cu), % 0 to 0.25
0.5 to 0.8
Iron (Fe), % 95 to 97.8
95.1 to 97.2
Manganese (Mn), % 1.4 to 1.8
0.8 to 1.2
Molybdenum (Mo), % 0 to 0.3
0.25 to 0.5
Nickel (Ni), % 0 to 0.3
1.0 to 1.3
Niobium (Nb), % 0
0.015 to 0.045
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.5
0.25 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0 to 0.3
0