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Rulon Bearings

AISI 1044 Steel, hot rolled, 19-32 mm (0.75-1.25 in) round
Categories: Metal; Ferrous Metal; Carbon Steel; AISI 1000 Series Steel; Medium Carbon Steel
Material Notes: Medium-carbon steel, can be hammer forged. Can be heat treated, flame or induction hardened, but not recommended for carburizing or cyaniding.
Key Words: UNS G10440, ASTM A29, ASTM A510, ASTM A575, ASTM A576, SAE J403, SAE J412
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Physical PropertiesMetricEnglishComments
Density 7.85 g/cc0.284 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 163163
Hardness, Knoop 184184Converted from Brinell
Hardness, Rockwell B 8484Converted from Brinell
Hardness, Vickers 170170Converted from Brinell
Tensile Strength, Ultimate 550 MPa79800 psi
Tensile Strength, Yield 310 MPa45000 psi
Elongation at Break 16 %16 %In 50 mm
Reduction of Area 40 %40 %
Modulus of Elasticity 205 GPa29700 ksiTypical for steel
Bulk Modulus 160 GPa23200 ksiTypical for steel
Poissons Ratio 0.290.29Typical For Steel
Shear Modulus 80.0 GPa11600 ksiTypical for steel
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000176 ohm-cm0.0000176 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear  11.5 µm/m-°C
@Temperature 0.000 - 100 °C		6.39 µin/in-°F
@Temperature 32.0 - 212 °F
 13.0 µm/m-°C
@Temperature 0.000 - 300 °C		7.22 µin/in-°F
@Temperature 32.0 - 572 °F
 14.0 µm/m-°C
@Temperature 0.000 - 500 °C		7.78 µin/in-°F
@Temperature 32.0 - 932 °F
Specific Heat Capacity 0.472 J/g-°C0.113 BTU/lb-°FTypical steel
Thermal Conductivity 49.8 W/m-K346 BTU-in/hr-ft²-°FTypical steel
 
Component Elements PropertiesMetricEnglishComments
Carbon, C 0.43 - 0.50 %0.43 - 0.50 %
Iron, Fe 98.81 - 99.27 %98.81 - 99.27 %As remainder
Manganese, Mn 0.30 - 0.60 %0.30 - 0.60 %
Phosphorus, P <= 0.040 %<= 0.040 %
Sulfur, S <= 0.050 %<= 0.050 %

References for this datasheet.

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