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SAE-AISI O1 Steel vs. EN 1.0044 Steel

Both SAE-AISI O1 steel and EN 1.0044 steel are iron alloys. They have a very high 97% 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 O1 steel and the bottom bar is EN 1.0044 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 2060
470

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
1.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.9
1.4
Embodied Energy, MJ/kg 27
18
Embodied Water, L/kg 51
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 73
17
Strength to Weight: Bending, points 21 to 46
17
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 21 to 68
15

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.25
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0 to 0.25
0 to 0.6
Iron (Fe), % 95 to 97.4
97.4 to 100
Manganese (Mn), % 1.0 to 1.4
0 to 1.6
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.014
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0 to 0.045
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0 to 0.3
0