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    En9 070M55

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    Tridib Dey
    This document provides product information for EN9-070M55 carbon steel, including its chemical composition, characteristics, typical applications, mechanical properties after different heat treatments, and limited ruling section thicknesses. The steel has 0.5-0.6% carbon content, is weldable but not recommended for welding, and machines well. It is ideal for tensile applications up to 45 tons and commonly used for parts like sprockets, cylinders, cams, and crankshafts. Heat treating is limited to normalizing, with resulting hardness between 170-302 HB and tensile strength ranging from 600-1000 MPa.

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    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd

    En9 070M55

    Uploaded by

    Tridib Dey
    2K views1 page
    This document provides product information for EN9-070M55 carbon steel, including its chemical composition, characteristics, typical applications, mechanical properties after different heat treatments, and limited ruling section thicknesses. The steel has 0.5-0.6% carbon content, is weldable but not recommended for welding, and machines well. It is ideal for tensile applications up to 45 tons and commonly used for parts like sprockets, cylinders, cams, and crankshafts. Heat treating is limited to normalizing, with resulting hardness between 170-302 HB and tensile strength ranging from 600-1000 MPa.

    Original Description:

    MATL SPEC

    Original Title

    EN9 070M55

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    This document provides product information for EN9-070M55 carbon steel, including its chemical composition, characteristics, typical applications, mechanical properties after different heat treatments, and limited ruling section thicknesses. The steel has 0.5-0.6% carbon content, is weldable but not recommended for welding, and machines well. It is ideal for tensile applications up to 45 tons and commonly used for parts like sprockets, cylinders, cams, and crankshafts. Heat treating is limited to normalizing, with resulting hardness between 170-302 HB and tensile strength ranging from 600-1000 MPa.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    2K views1 page

    En9 070M55

    Uploaded by

    Tridib Dey
    This document provides product information for EN9-070M55 carbon steel, including its chemical composition, characteristics, typical applications, mechanical properties after different heat treatments, and limited ruling section thicknesses. The steel has 0.5-0.6% carbon content, is weldable but not recommended for welding, and machines well. It is ideal for tensile applications up to 45 tons and commonly used for parts like sprockets, cylinders, cams, and crankshafts. Heat treating is limited to normalizing, with resulting hardness between 170-302 HB and tensile strength ranging from 600-1000 MPa.

    Copyright:

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    Download as PDF, TXT or read online from Scribd
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    Product Information:

    EN9 - 070M55
    EN9 - 070M55 Black (As rolled or forged) (CARBON STEEL)
    Equivalents: BS970 Part 1 1983, 070M55 BS970 of 1955 EN9 German W. Stoff No. 1.1203 | American AISI 1055 Chemical: Composition % Carbon Silicon Manganese Sulphur Phosphorus

    = 0,50 - 0,60 = 0,10 - 0,40 = 0,50 - 0,90 = 0,050 max = 0,050 max

    Characteristics: A 6% allowance should always be made for removal of surface defects during machining EN9 is weldable (but not recommended) Machinability good Ideal for 45 ton tensile applications Not recommended for carburising Heat treatment only to limited ruling sections Typical Applications: Sprockets Cylinders Cams Crankshafts Keys Small Gears Machine Tools Grinding Balls for Ball Mills

    Ball Race Rings Bolts, Nuts Pulleys

    Mechanical Properties
    Heat Treatment
    Normalise R S T

    Condition Tons/SQ. inch


    45 39 45/55 50/60 55/65

    Tensile Strength RM MPA


    700 600 700/850 775/925 850/1000

    Yield Stress RE MPA


    355 310 415 480 570

    RP 0,2 MPA
    385 450 555

    A min on 5,65
    12 13 14 14 12

    Impact
    IZOD KCV FT.Lb Joules

    So

    Hardness HB
    201/255 170/223 201/255 223/277 248/302

    Limited Ruling Section mm


    63 250 100 63 19

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