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    42CrMo4 EN 10083/3-2006 High Strength Alloy Steel Round Bar

    [ Time:2019-04-15 Click:502 ]


     42CrMo4 alloy steel


    Standard: EN 10083/3-2006

    Application: machine construction, base plates, axes, gear shafts, gear wheels

    Surface condition: black, polished, rough machined, turned, painted, oil or grease covered

    Chemical composition: C: 0.38 ~0.45; Si: ≤0.40; Mn:0.60~0.90; S: ≤0.035; P: ≤0.035; Cr:0.90~1.20; Mo: 0.15~0.30

    Stock sizes:  φ30, φ35, φ40, φ45, φ50, φ60, φ65, φ70, φ90, φ100, φ110, φ130, φ120, φ140 mm

    Equivalent grades conversion

    Standard Grade
    GB 42CrMo
    AISI 4140, 4142
    ГOCT 38XM
    BS 708M40, 708A42, 709M40
    NF 40CD4, 42CD4
    DIN 41CrMo4, 42CrMo4, 1.7225
    JIS SCM4
    ISO 683, 1 3
    SAE 4140H, 4140RH

    Mechanical composition

    Tensile strength: min 1080 MPa

    Yield strength : min 930 MPa

    Elongation rate: min 12%

    Reduction rate: min 45%

    Impact energy: akv min 63J

    Hardness: 32HRC ~52 HRC

    Melting point: 1416 ℃

    Formula reference

    Round bar weight KG = 3.14 x length x radius² x 0.00000785

    Round pipe weight KG= 3.14 x length x (OD²-ID²) x 0.00000785

    Plate weight KG= length x width x thickness x 0.00000785

    (All lengths are mm)


    We provide heat-treatment, cold thread, lab services according to customer's technical requirements. Please send properties requriements to infor@aylttg.com. We will give positive response within one working day.




    Production Line

    production line


    Quality Control System


    Quality Control


    Achieving the ISO 9001:2008 Certification is just one example of our Products’ dedication to quality and continuous improvement. Each employee is responsible for understanding company expectations and adhering to the procedures of our Quality Management System.
    Our Products ensures customers receive the material ordered with accurate supporting paperwork. Customers can count on proper documentation, on-time performance and effective follow-up.




    We will continually improves and expands the quantity and quality of our product which exactly meet customers need. We do whatever it takes to make our clients happy.
    We will develop long-term commercial and technical partnerships with customers. And we are committed to continual quality improvement of all internal processes. The success of our quality program is affirmed by our strong customer retention rate.

    Email:info@aylttg.com Tel:0372 2256782  
    Add: Industrial Park, Indu District, Anyang City, Henan Province, P.R.China
    Anyang Longteng Heat Treatment Material Co.,Ltd. ?  
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