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SAE-AISI O2 Steel vs. ASTM A182 Grade F122

Both SAE-AISI O2 steel and ASTM A182 grade F122 are iron alloys. They have 86% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O2 steel and the bottom bar is ASTM A182 grade F122.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 640 to 2050
710

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1450
1490
Melting Onset (Solidus), °C 1410
1440
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 43
24
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
10
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
12
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.8
3.0
Embodied Energy, MJ/kg 26
44
Embodied Water, L/kg 50
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 73
25
Strength to Weight: Bending, points 21 to 46
22
Thermal Diffusivity, mm2/s 12
6.4
Thermal Shock Resistance, points 22 to 70
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.85 to 1.0
0.070 to 0.14
Chromium (Cr), % 0 to 0.5
10 to 11.5
Copper (Cu), % 0 to 0.25
0.3 to 1.7
Iron (Fe), % 95 to 97.8
81.3 to 87.7
Manganese (Mn), % 1.4 to 1.8
0 to 0.7
Molybdenum (Mo), % 0 to 0.3
0.25 to 0.6
Nickel (Ni), % 0 to 0.3
0 to 0.5
Niobium (Nb), % 0
0.040 to 0.1
Nitrogen (N), % 0
0.040 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5
Vanadium (V), % 0 to 0.3
0.15 to 0.3
Zirconium (Zr), % 0
0 to 0.010