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Forging 4145H 3 1/2" Rotary Oilfield Hexagonal Kelly

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    Forging 4145H 3 1/2" Rotary Oilfield Hexagonal Kelly

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    Brand Name : TR Solids Control
    Model Number : TRFZG
    Certification : API 7-1, ISO 9001
    Price : Negotiable
    Payment Terms : L/C, D/A, D/P, T/T, Western Union
    Supply Ability : 100000 pcs Per Month
    Delivery Time : 15 days
    • Product Details
    • Company Profile

    Forging 4145H 3 1/2" Rotary Oilfield Hexagonal Kelly

    Oil and Gas Rotary Kelly Drill String Square or Hexagonal Type


    Product Overview


    Kelly is located in the top of the drill string, with square and hexagonal. In rotary drilling, when it is drilling, kelly connected with square bushing and rotary bushing, transfer the ground rotary torque to drill pipe and to drive the drill bit,bearing the weight of the drill string.In the drilling of the turbine and screw, the weight of the drill string and the counter torque are supported.


    Our Square& Hexagonal kelly are made from AISI 4145H modified alloy bars that are quenched and tempered full length. After such heat treatment, its brinell hardness can reach 285-341. Kelly's end, drive cross-section and joint are all processed and tested comform to API criterion.


    Straightness of the kelly is very crucial in the manufacturing process, thus straightness inspections are carried out before, during and after each machining operation. All milling processes are performed on specially designed rigid Kelly mills to ensure tight tolerances and high quality drive sections.


    Main Specialities of Our Square & Hexagonal Kelly

    1. Shipped in a protective steel -cased scabbard.
    2. Ends and drive section,IDs and connections machined and inspected to API specification.
    3. Ultrasonic inspection is performed on all section.
    4. Manufactured from AISI4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341BHN and a minimum average Charpy impact value of 40ft-Ibs.

    Technical Data of Our Square & Hexagonal Kelly


    Kelly size63.576.288.9108108133.4133.4
    2 1/233 1/24 1/44 1/45 1/45 1/4
    Lengthdrive SectionLD Standard11280112801128011280112801128011280
    LD optional15540155401554015540
    LengthoverallL Standard12190121901219012190121901219012190
    L optional16460164601646016460
    Length Drive SectionDFL Across flate63.576.288.9108108133.4133.4
    DC Across cornere83.3100115.1141.3141.3175.4175.4
    DCC Across flate82.5598.43122.7139.7139.7171.45171.45
    RC Radlue7.99.512.712.712.715.915.9
    RCC Radlue41.349.256.469.969.985.785.7
    Wall thickness eccentric bore11.4311.4311.4312.0712.0715.8815.88
    Upper box connectionThread size and style LFStandard6 5/8 REG6 5/8 REG6 5/8 REG6 5/8 REG6 5/8 REG6 5/8 REG6 5/8 REG
    Optional4 1/2 REG4 1/2 REG4 1/2 REG4 1/2 REG4 1/2 REG
    ODDu Standard196.9196.9196.9196.9196.9196.9196.9
    Du Optional146.1146.1146.1146.1146.1
    Bevel diameterLu406.4406.4406.4406.4406.4406.4406.4
    DF Standard186.1186.1186.1186.1186.1186.1186.1
    DF Optional134.5134.5134.5134.5134.5
    Lower pin connectionLabelNC26NC31NC38NC46NC505 1/2 FHNC56
    Outsize diameter85.7104.8120.7158.8161.9177.8177.8
    LL508508508508508508508
    DF Bevel diameter82.9100.4116.3145.3154170.7171.1
    Inside diameter31.844.557.271.471.482.682.6


    Xi'an TianRui Petroleum Machinery Equipment Company Limited is a professional manufacturer and supplier of all types of petroleum equipment. The company is located in Xi'an city of China. And we have many years of history in the petroleum equipment industry. Our main products include solid control equipment, oil production equipment, wellhead equipment, well control equipment, downhole tools, OCTG pipe, vavle & pipe fitting and oilfield tools.

    Competitive Advantages


    1. We offer high quality products at competitive price.
    2. Shortest delivery time.
    3. Flexible payment terms.
    4. Timely after-sale service.
    5. Most of our equipment can be replaceable with international brands.
    6. Our products have been exported to Argentina, Egypt, US, Australia, Romania, Pakistan, Dubai, Abu Dhabi, Iran, India, Indonesia, Vietnam, Malaysia and many other countries.

    Quality Forging 4145H 3 1/2" Rotary Oilfield Hexagonal Kelly for sale
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