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Rulon Bearings

AISI 8637 Steel
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 8000 Series Steel; Low Alloy Steel; Carbon Steel; Medium Carbon Steel

Material Notes: This designation standard was deleted from the SAE Handbook in 1993. Because of decreased usage, SAE no longer considers this a standard steel. It may be difficult finding suppliers for this designation.

Key Words: UNS G86370, ASTM A322, ASTM A331, ASTM A519, SAE J404, SAE J412, SAE J770
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Physical PropertiesMetricEnglishComments
Density 7.85 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 179 - 229179 - 229annealed and cold drawn.
Hardness, Knoop 226226Converted from Brinell
Hardness, Rockwell B 9393Converted from Brinell
Hardness, Rockwell C 1414Converted from Brinell hardness. Value below normal HRC range, for comparison only.
Hardness, Vickers 214214Converted from Brinell
Modulus of Elasticity 205 GPa29700 ksiTypical for steel
Bulk Modulus 160 GPa23200 ksiTypical for steel.
Poissons Ratio 0.290.29Calculated
Machinability 65 %65 %annealed and cold drawn. Based on AISI 1212 steel = 100%.
Shear Modulus 80.0 GPa11600 ksiTypical for steel
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000234 ohm-cm0.0000234 ohm-cmTypical steel
 
Thermal PropertiesMetricEnglishComments
Specific Heat Capacity 0.475 J/g-°C0.114 BTU/lb-°FTypical steel
Thermal Conductivity 46.6 W/m-K323 BTU-in/hr-ft²-°FTypical steel
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.35 - 0.40 %0.35 - 0.40 %
Chromium, Cr 0.40 - 0.60 %0.40 - 0.60 %
Iron, Fe 96.625 - 97.8 %96.625 - 97.8 %As remainder
Manganese, Mn 0.75 - 1.0 %0.75 - 1.0 %
Molybdenum, Mo 0.15 - 0.25 %0.15 - 0.25 %
Nickel, Ni 0.40 - 0.70 %0.40 - 0.70 %
Phosphorus, P <= 0.035 %<= 0.035 %
Silicon, Si 0.15 - 0.35 %0.15 - 0.35 %
Sulfur, S <= 0.040 %<= 0.040 %

References for this datasheet.

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