Mat.No. 1.3505, DIN 100Cr6, AISI 5210

Mat.No. 1.3505, DIN 100Cr6, AISI 5210

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Designation by Standards Mat. No. DIN EN AISI 1.3505 100Cr6 100Cr6 5210 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.97 0.25 0.35 1.50 - max. 0.30- - - Cu max. 0.30 Description 52100 is a high carbon, chromium containing low alloy steel that is through hardening and noted in particular for use as bearings.  Applications Principal applications are those for bearings in rotating machinery. Balls, rollers and rings for roller bearings, diameter up to 30 mm.  P...


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    Designation by Standards

    Mat. No. DIN EN AISI
    1.3505 100Cr6 100Cr6 5210

    Chemical Composition (in weight %)

    C Si Mn Cr Mo Ni V W Others
    0.97 0.25 0.35 1.50 - max. 0.30- - - Cu max. 0.30

    Description
    52100 is a high carbon, chromium containing low alloy steel that is through hardening and noted in particular for use as bearings. 

    Applications
    Principal applications are those for bearings in rotating machinery. Balls, rollers and rings for roller bearings, diameter up to 30 mm. 

    Physical properties (avarage values) at ambient temperature
    Modulus of elasticity [103 x N/mm2]: 190-210 
    Density [g/cm3]: 7.83
    Thermal conductivity [W/m.K]: 20.0 
    Electric resistivity [Ohm mm2/m]: 0.65
    Specific heat capacity[J/g.K]: 0.46

    Soft Annealing
    Heat to 760-800oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 207.

    Stress Relieving
    Stress relieving to remove machining stresses should be carried out by heating to 650oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

    Hardening
    Harden from a temperature of 830-870oC followed by oil quenching. Hardness after quenching is 64 HRC.

    Tempering
    Tempering temperature: 150-180oC.

    Forging
    Hot forming temperature: 1200-926oC. 

    Machinability
    Machinability of 52100 alloy is good by conventional methods. A spherodizing anneal at 1200 F before machining will improve the overall machinability of the alloy.

    Welding 
    This is a high carbon alloy typically used in bearing applications where welding is not applicable or appropriate.

    Disclaimer
    The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

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