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EN 1.6368 Steel vs. SAE-AISI O2 Steel

Both EN 1.6368 steel and SAE-AISI O2 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 EN 1.6368 steel and the bottom bar is SAE-AISI O2 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 73
72
Tensile Strength: Ultimate (UTS), MPa 660 to 690
640 to 2050

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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