Mat.No. 1.1151, DIN Ck22, AISI 1022

Mat.No. 1.1151, DIN Ck22, AISI 1022

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  Designation by Standards   Mat. No. DIN EN AISI 1.1151 Ck22 - 1022   Chemical Composition (in weight %)   C Si Mn Cr Mo Ni V W Others 0.20 max. 0.40 0.55 max. 0.40 max. 0.10 max. 0.40 - - (Cr+Mo+Ni)= max. 0.63   Description CK22 steel is a slightly higher carbon and manganese content plain carbon steel than 1020. It is used for its somewhat greater strength while still having good ductility. Applications CK22 steel is typically used for moderate stre...


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    Designation by Standards

     

    Mat. No. DIN EN AISI
    1.1151 Ck22 - 1022

     

    Chemical Composition (in weight %)

     

    C Si Mn Cr Mo Ni V W Others
    0.20 max. 0.40 0.55 max. 0.40 max. 0.10 max. 0.40 - - (Cr+Mo+Ni)= max. 0.63

     

    Description
    CK22 steel is a slightly higher carbon and manganese content plain carbon steel than 1020. It is used for its somewhat greater strength while still having good ductility.

    Applications
    CK22 steel is typically used for moderate strength structural applications such as cold formed fasteners and bolts. It is often used in the case hardened condition.

    Physical properties (avarage values) at ambient temperature
    Modulus of elasticity [103 x N/mm2]: 210
    Density [g/cm3]: 7.85

    Soft Annealing
    Heat to 650-700oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 176.

    Normalizing
    Normalizing temperature: 880-910oC/air.

    Hardening
    Harden from a temperature of 860-890oC followed by water quenching.

    Tempering
    Tempering temperature: 540-680oC.

    Mechanical Properties in Hardened+Tempered Condition

     

    Diameter (mm) 0.2 % proof stress (N/mm2) Tensile strength (N/mm2) Elongation A5 (%) Reduction (%) Impact strength (J)
    up to 16 350 550-700 20 50 55
    17-40 300 500-600 22 50 55
    up to 100 230 400-550 27 - -
    101-160 210 380-520 25 - -

     

    Diagram Tempering Temperature – Mechanical Properties


    Click the image to enlarge the diagram.

    Forging
    Hot forming temperature: 1100-850oC.

    Machinability
    Machinability of CK22 steel is quite good, rating a 70% against the standard 1112 steel of 100% machinability.

    Corrosion Resistance
    This steel is not corrosion resistant. it will rust unless protected.

    Welding
    Weldable by all standard methods. However for heavy sections the use of pre-heat and post- heat is advised.

    Cold working
    Cold working by conventional methods is readily accomplished. Following severe cold working an anneal may be required.

    Forms manufactured: Please see the Dimensional Sales Program.

    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.

    Unless otherwise specified, registered trademarks are property of Metal Ravne company. Copyright 2015 by Metal Ravne. All rights reserved. Contact our Sales Office for more information.

     

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