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SAE-AISI O6 Steel vs. SAE-AISI 1137 Steel

Both SAE-AISI O6 steel and SAE-AISI 1137 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 O6 steel and the bottom bar is SAE-AISI 1137 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 71
73
Tensile Strength: Ultimate (UTS), MPa 670 to 2070
700 to 760

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 43
51
Thermal Expansion, µm/m-K 12
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 2.3
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 21
19
Embodied Water, L/kg 47
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 74
25 to 27
Strength to Weight: Bending, points 22 to 47
22 to 24
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 22 to 69
21 to 23

Alloy Composition

Carbon (C), % 1.3 to 1.6
0.32 to 0.39
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 94.6 to 97.7
97.8 to 98.3
Manganese (Mn), % 0.3 to 1.1
1.4 to 1.7
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.55 to 1.5
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13