Mat.No. 1.1221, DIN Ck60, AISI 1060

Mat.No. 1.1221, DIN Ck60, AISI 1060

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Designation by Standards Brand Name Ravne No. Mat. No. DIN EN AISI CK60 622 1.1221 Ck60 - 1060 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.61 max. 0.40 0.75 max. 0.40 max. 0.10 max. 0.40 - - (Cr+Mo+Ni) = max. 0.63 Description CK60 is one of the higher carbon content (0.60%) steels. It is more difficult to fabricate than the lower carbon grades. Applications Shafts, bushings, connecting rods, nechanical engineering components, agricultural hand tools, large...


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    Designation by Standards

    Brand Name Ravne No. Mat. No. DIN EN AISI
    CK60 622 1.1221 Ck60 - 1060

    Chemical Composition (in weight %)

    C Si Mn Cr Mo Ni V W Others
    0.61 max. 0.40 0.75 max. 0.40 max. 0.10 max. 0.40 - - (Cr+Mo+Ni) = max. 0.63

    Description
    CK60 is one of the higher carbon content (0.60%) steels. It is more difficult to fabricate than the lower carbon grades.

    Applications
    Shafts, bushings, connecting rods, nechanical engineering components, agricultural hand tools, large forgings, springs, cold rolled strips.

    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 241.

    Normalizing
    Normalizing temperature: 820-850oC.

    Hardening
    Harden from a temperature of 800-830oC, 810-840oC followed by water or oil quenching.

    Tempering
    Tempering temperature: 540-680oC.

    Tempering Diagram


    Click the image to enlarge the diagram.

    Mechanical Properties in Normalized Condition

    Diameter (mm) 0.2 % proof stress (N/mm2) Tensile strength (N/mm2) Elongation (%)
    up to 16 380 710 10
    17-40 340 670 11
    41-100 340 670 11
    101-160 310 650 11
    161-250 310 650 11

    Mechanical Properties in Quenched and Tempered Condition

    Diameter (mm) 0.2 % proof stress (N/mm2) Tensile strength (N/mm2) Elongation (%) Reduction (%) Impact strength (J)
    up to 16 580 850-1000 11 25 -
    17-40 520 800-950 13 30 -
    41-100 450 750-900 14 35 -
    101-160 - - - - -
    161-250 - - - - -

    Hardenability Diagram


    Click the image to enlarge the diagram.

    Forging
    Hot forming temperature: 1100-850oC.

    Machinability
    Machinability of CK60 and all of the higher carbon steels is relatively poor. CK60 rates at 55 to 60 % that of the AISI 1112 steel which is considered 100% machinable.

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

    Welding
    CK60 steel is weldable by all of the welding methods. However with its higher carbon content it is important to use both pre-heat at 150 to 260oC and post-heat at 590 to 650oC practice per an approved welding procedure.

    Cold working
    Cold working is difficult even in the annealed condition although it may be done by conventional methods but requires greater force than the lower carbon steels.

    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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