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SAE-AISI O2 Steel vs. AWS E2594

Both SAE-AISI O2 steel and AWS E2594 are iron alloys. They have 61% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O2 steel and the bottom bar is AWS E2594.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
81
Tensile Strength: Ultimate (UTS), MPa 640 to 2050
850

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 43
16
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
4.3
Embodied Energy, MJ/kg 26
60
Embodied Water, L/kg 50
190

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 73
30
Strength to Weight: Bending, points 21 to 46
25
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 22 to 70
21

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.040
Chromium (Cr), % 0 to 0.5
24 to 27
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 95 to 97.8
53.8 to 63.8
Manganese (Mn), % 1.4 to 1.8
0.5 to 2.0
Molybdenum (Mo), % 0 to 0.3
3.5 to 4.5
Nickel (Ni), % 0 to 0.3
8.0 to 10.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.3
0