Sales & Support: Request A Quote
Home ProductsDrilling pipe

AISI 4145h Drill Collar 6 1/2"-Nc46 with API Spec 7-1 for geological exploration

AISI 4145h Drill Collar 6 1/2"-Nc46 with API Spec 7-1 for geological exploration

    • AISI 4145h Drill Collar 6 1/2"-Nc46 with API Spec 7-1 for geological exploration
    • AISI 4145h Drill Collar 6 1/2"-Nc46 with API Spec 7-1 for geological exploration
    • AISI 4145h Drill Collar 6 1/2"-Nc46 with API Spec 7-1 for geological exploration
    • AISI 4145h Drill Collar 6 1/2"-Nc46 with API Spec 7-1 for geological exploration
  • AISI 4145h Drill Collar 6 1/2"-Nc46 with API Spec 7-1 for geological exploration

    Product Details:

    Place of Origin: China
    Brand Name: SHITAN
    Certification: API
    Model Number: 6 1/2"-NC46

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 PC
    Price: USD100
    Packaging Details: Bundles
    Delivery Time: 10 working days
    Payment Terms: L/C, T/T
    Supply Ability: 6000 PCS per year
    Contact Now
    Detailed Product Description
    Name: Drill Collar Model: API 7-1
    Surface Treatment: Spray-painting Package: Bundles

    Product Information
    Drill Collar is mainly used for providing drill bit with required drilling pressure, ensuring pull force transmitted to drill pipe and centralize the drill bit. According to API Spec 7-1 specifications, the material quality is 4145H that's after heat-treatment, thread hardening treatment and phosphating to better antiseize. It also can be produced upon customers' requirements.
    The parameter of drill collar according to API Spec 7-1 specifications.

    Drill Collar Thread Outside Diameter D Inside Diameter d Length Chamfer Diameter Reference Bending Strength Ratio
    L Df
    mm in mm in mm mm
    NC31-41(27/8IF) 104.8 4 1/8 50.8 2 9140or9450 100.4 2.43:1
    NC35-47 120.7 4 3/4 50.8 2 9140or9450 114.7 2.58:1
    NC38-50(31/2IF) 127 5 57.2 2 1/4 9140or9450 121 2.38:1
    NC44-60 152.4 6 57.2 2 1/4 9140or9450 144.5 2.49:1
    NC44-60 152.4 6 71.4 2 13/16 9140or9450 144.5 2.84:1
    NC44-62 158.8 6 1/4 57.2 2 1/4 9140or9450 149.2 2.91:1
    NC46-62(4IF) 158.8 6 1/4 71.4 2 13/16 9140or9450 150 2.63:1
    NC46-65(4IF) 165.1 6 2/4 57.2 2 1/4 9140or9450 154.8 2.76:1
    NC46-65(4IF) 165.1 6 2/4 71.4 2 13/16 9140or9450 154.8 3.05:1
    NC46-67(4IF) 171.4 6 3/4 57.2 2 1/4 9140or9450 159.5 3.18:1
    NC50-67(41/2IF) 171.4 6 3/4 71.4 2 13/16 9140or9450 159.5 2.37:1
    NC50-70(41/2IF) 177.8 7 57.2 2 1/4 9140or9450 164.7 2.54:1
    NC50-70(41/2IF) 177.8 7 71.4 2 13/16 9140or9450 164.7 2.73:1
    NC50-72(41/2IF) 184.2 7 1/4 71.4 2 13/16 9140or9450 169.5 3.12:1
    NC56-77 196.8 7 3/4 71.4 2 13/16 9140or9450 185.3 2.70:1
    NC56-80 203.2 8 71.4 2 13/16 9140or9450 190.1 3.02:1
    6 5/8REG 209.6 8 1/4 71.4 2 13/16 9140or9450 195.7 2.93:1
    NC61-90 228.6 9 71.4 2 13/16 9140or9450 212.7 3.17:1


    Company:

    AISI 4145h Drill Collar 6 1/2"-Nc46 with API Spec 7-1 for geological exploration


     

    Contact Details
    Shijiazhuang Coal Mining Machinery Co., Ltd.

    Contact Person: Mrs. Gina

    Tel: 86-311-85538986

    Fax: 86-311-85538888

    Send your inquiry directly to us (0 / 3000)