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SAE-AISI O2 Steel vs. AWS E209

Both SAE-AISI O2 steel and AWS E209 are iron alloys. They have 61% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (6, 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 E209.

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
79
Tensile Strength: Ultimate (UTS), MPa 640 to 2050
770

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
14

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
4.4
Embodied Energy, MJ/kg 26
63
Embodied Water, L/kg 50
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 73
28
Strength to Weight: Bending, points 21 to 46
24
Thermal Shock Resistance, points 22 to 70
19

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.060
Chromium (Cr), % 0 to 0.5
20.5 to 24
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 95 to 97.8
51.5 to 64.3
Manganese (Mn), % 1.4 to 1.8
4.0 to 7.0
Molybdenum (Mo), % 0 to 0.3
1.5 to 3.0
Nickel (Ni), % 0 to 0.3
9.5 to 12
Nitrogen (N), % 0
0.1 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
0.1 to 0.3