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Drilling and Workover Equipment Nonmagnetic Drill Collars

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    Drilling and Workover Equipment Nonmagnetic Drill Collars

    Nonmagnetic Drill Collars

    Nonmagnetic Drill Collars

    3 1/2''*1 1/2''-ANSI N1310-30'

    Inquiry Number :-+

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    Detail Info


    The drill collar, mainly used for providing drill pressure, is manufactured in accordance with API Spec 7 and API RP 7G. The material of standard drill collar is AISI 41545H. Trace elements such as sulfur and phosphorus are reduced during the steel making process, thus making the material get high physical properties.

    Nonmagnetic drill collar is made from chrome manganese, low carbon austenitic alloy obtained by combining a proprietary chemical analysis and a rotary hammer forging process. The material is resistant to stress corrosion cracking, with high mechanical properties, low magnetic permeability, excellent mechanical machining properties and no tendency to galling.
    Product Type
    • Standard drill collar
    • Special spiral collar
    • Standard nonmagnetic drill collar

    Basic Technical Parameters of Drill Collar


    1. CPTDC can supply drill collar with other outside and inside diameters according to customers' requirements;
    2. CPTDC can supply drill collar made from other standard material, e.g. AISI 4145HM or AISI 4145M;
    3. The premium thread connection such as PAC is available.

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