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Rulon Bearings

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34MoCr4 Alloy Steel
Categories: Metal; Ferrous Metal; Alloy Steel; AISI 4000 Series Steel; Low Alloy Steel
Key Words: EN 10083(91)A1(96) 34MoCr4; DIN 1652(90) 34MoCr4, NMN 253-02 34MoCr4. Comparable to AISI 4137, 4135, 4130, UNS G41370, UNS G41350, UNS G41300
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Physical PropertiesOriginal ValueComments
Density 7.85 g/cc
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Ultimate 1100 - 1200 MPa
@Thickness <=16.0 mm		Quenched + Tempered
Tensile Strength, Yield 800 MPa
@Thickness <=16.0 mm		Quenched + Tempered
Elongation at Break 11 %
@Thickness <=16.0 mm		Quenched + Tempered
Modulus of Elasticity 205 GPaTypical for steel
Bulk Modulus 160 GPaTypical for steel
Poissons Ratio 0.29Typical for steel
Shear Modulus 80.0 GPaTypical for steel
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000223 ohm-cm(AISI 4135)
 
Thermal PropertiesOriginal ValueComments
CTE, linear 11.2 µm/m-°C
@Temperature 0.000 - 100 °C		(AISI 4135)
 12.4 µm/m-°C
@Temperature 0.000 - 300 °C		(AISI 4135)
 13.5 µm/m-°C
@Temperature 0.000 - 500 °C		(AISI 4135)
Specific Heat Capacity 0.477 J/g-°C(AISI 4135)
Thermal Conductivity 42.7 W/m-K(AISI 4135)
 
Component Elements PropertiesOriginal ValueComments
Carbon, C 0.30 - 0.37 %
Chromium, Cr 0.90 - 1.2 %
Iron, Fe 96.4 - 97.8 %As remainder
Manganese, Mn 0.60 - 0.90 %
Molybdenum, Mo 0.15 - 0.30 %
Phosphorus, P <= 0.035 %
Silicon, Si <= 0.40 %
Sulfur, S 0.20 - 0.40 %per DIN 1652(90). S content < 0.35% per EN 10083(91)A1(96)

References for this datasheet.

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