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API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50

API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50

    • API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50
    • API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50
    • API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50
    • API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50
  • API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50

    Product Details:

    Place of Origin: China
    Brand Name: SHITAN
    Certification: API
    Model Number: O. D.177.8mm-NC50

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 PC
    Price: USD100
    Packaging Details: Bundles
    Delivery Time: 5 working days
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    Detailed Product Description
    Material: P550 O.D.: 203.2mm
    Thread: Nc50 Feature: Non-magnetic
    Standard: API Spec 7-1

    Non-Magnetic Drill Collar are made of low magnetic stainless alloy steel by combining a proprietary chemical analysis and a hammer forging process. The material is resistant to stress corrosion cracking. With high mechanical properties, low magnetic permeability, excellent machineability and no tendency to galling. Production standard: API Spec 7-1 and API Spec 7-2.
    The parameter of Non-Magnetic 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 Information

    API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50API Spec 7-1 P550 Water Well Drilling Non-Magnetic Drill Collar O. D. 177.8mm-Nc50

    Contact Details
    Shijiazhuang Coal Mining Machinery Co., Ltd.

    Contact Person: Mrs. Gina

    Tel: 86-311-85538986

    Fax: 86-311-85538888

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