Mat.No. 1.1181, DIN Ck35, AISI 1035

Mat.No. 1.1181, DIN Ck35, AISI 1035

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Designation by Standards Mat. No. DIN EN AISI 1.1181 Ck35 - 1035 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.35 max. 0.40 0.65 max. 0.40 max. 0.10 max.0.40 - - (Cr+Mo+Ni) = max. 0.63 Description CK35 steel has a higher (0.35%) carbon content for greater strength than the lower carbon alloys. It is hardenable by heat treatment, quench and tempering to develop 150 to 250 ksi tensile strength.  Applications Component parts for automobile industry, e.g., shaft...


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    Designation by Standards

    Mat. No. DIN EN AISI
    1.1181 Ck35 - 1035

    Chemical Composition (in weight %)

    C Si Mn Cr Mo Ni V W Others
    0.35 max. 0.40 0.65 max. 0.40 max. 0.10 max.0.40 - - (Cr+Mo+Ni) = max. 0.63

    Description CK35 steel has a higher (0.35%) carbon content for greater strength than the lower carbon alloys. It is hardenable by heat treatment, quench and tempering to develop 150 to 250 ksi tensile strength.  Applications Component parts for automobile industry, e.g., shafts, forgings, flanges, bushings, crankshafts, connecting rods and parts for the machine building industry.  Physical properties (avarage values) at ambient temperature Modulus of elasticity [103 x N/mm2]: 210  Density [g/cm3]: 7.86 Soft Annealing Heat to 650-700oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 226. Normalizing Normalizing temperature: 880-910oC. Hardening Harden from a temperature of 805-845oC followed by oil or water quenching. Tempering Tempering from the quenched condition may be done at 550-660oC depending upon the strength desired. Mechanical Properties in Normalized*, Hardened+Tempered Condition

    Diameter (mm) 0.2 % proof stress (N/mm2) Tensile strength (N/mm2) Elongation A5 (%) Reduction Z (%) Impact strength (J)
    Up to 16* 300* 480-670 21* - -
    17-100* 270* 480-670* 21* - -
    101-160* 245* 460-650* 19* - -
    Up to 16 430 630-780 17 40 40
    17-40 370 600-750 19 45 40
    41-100 320 550-700 20 50 40

    Forging Hot forming temperature: 1100-850oC.  Machinability Machinability is good, rated at 60% that of the AISI 1112 alloy used as a 100% machining rated steel.  Corrosion Resistance  This is a steel alloy and will rust if not protected. it is not corrosion resistant. Welding  CK35 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  In the annealed state the CK35 alloy is readily cold worked by conventional methods. 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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