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ACI-ASTM CD6MN Steel vs. SAE-AISI O1 Steel

Both ACI-ASTM CD6MN steel and SAE-AISI O1 steel are iron alloys. They have 68% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD6MN steel and the bottom bar is SAE-AISI O1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 730
640 to 2060

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
43
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
3.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.9
Embodied Energy, MJ/kg 48
27
Embodied Water, L/kg 170
51

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
23 to 73
Strength to Weight: Bending, points 23
21 to 46
Thermal Diffusivity, mm2/s 4.4
12
Thermal Shock Resistance, points 20
21 to 68

Alloy Composition

Carbon (C), % 0 to 0.060
0.85 to 1.0
Chromium (Cr), % 24 to 27
0.4 to 0.6
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.1 to 70.1
95 to 97.4
Manganese (Mn), % 0 to 1.0
1.0 to 1.4
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 4.0 to 6.0
0 to 0.3
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
0.4 to 0.6
Vanadium (V), % 0
0 to 0.3