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316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface

    Buy cheap 316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface from wholesalers
     
    Buy cheap 316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface from wholesalers
    • Buy cheap 316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface from wholesalers
    • Buy cheap 316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface from wholesalers
    • Buy cheap 316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface from wholesalers
    • Buy cheap 316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface from wholesalers
    • Buy cheap 316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface from wholesalers

    316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface

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    Brand Name : MEILONG
    Model Number : 1/4'' OD x 0.049'' WT
    Certification : ISO9001:2015, PED 97/23/EC
    Payment Terms : L/C, T/T
    Supply Ability : 150000 meters per month
    Delivery Time : 10 days (for our required MOQ)
    Price : Negotiable
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    316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface

    High Precision 316l Stainless Steel Tubing , SS Seamless Tubes Polished Surface


    TP316L, Chemical composition

    ElementComposition, %
    Chromium16.0-18.0
    Nickel10.0-14.0
    Molybdenum2.0-3.0
    Manganese2.00 max.
    Silicon1.00 max.
    Carbon0.035 max.
    Sulfur0.030 max.
    Phosphorous0.045 max.

    Application: Standard oil and gas CRA (corrosion resistant alloy)

    Tensile strength, min.: 70ksi (485MPa)

    Yield strength, min.: 25ksi (170MPa)

    Elongation in 2 in., min.: 35%


    Application (seamless tubing)

    TP316L seamless pressure tubing in the heat treated condition is typically used in oil and natural gas wells for applications including hydraulically-actuated surface-controlled subsurface safety valves, chemical injection, and instrumentation. In such applications, it is commonly referred to as control line tubing. The tubing is generally deployed by strapping it to the outside of the production casing. It may be encapsulated and can be included along with other pressure or TEC and mechanical components, such as bumpers, within a flatpack. The tubing is frequently supplied as 5,000 to 35,000 ft. coils on a wooden or steel reel, depending on size.


    Description

    TP316L is a chromium - nickel austenitic stainless steel with an addition of molybdenum and reduced carbon content. The addition of molybdenum provides improved resistance to pitting and crevice corrosion in environments containing halides such as chlorides when compared to so-called conventional 18 chromium 8 nickel austenitic stainless steels such as 304L. The reduced carbon content minimizes harmful chromium carbide precipitation during welding and thereby improves resistance to intergranular corrosion. Austenitic stainless steels such as 316L are susceptible to stress corrosion cracking (SCC) in environments containing chlorides and other halides. Alloy 316L is generally used in oil and gas production environments which do not contain oxygen and have limited amounts of chlorides and hydrogen sulfide. Consult ISO 15156-3, Table A.2 for the limits regarding alloy 316L in hydrogen sulfide containing environments for oil and gas production.


    HYDRAULIC AND INSTRUMENTATION APPLICATIONS

    STAINLESS STEEL AND HIGH NICKEL ALLOYS COILED TUBING SOLUTIONS


    MEILONG is an important manufacturer in premium coiled seamless & welded tubular solutions for oil and gas applications. In an endeavor to increase its presence in subsea, MEILONG has extended its offer by developing a highly innovative tubular solution for umbilical projects.


    MEILONG has developed a strong and unique expertise in premium quality tubes to answer the most stringent specifications of its customers. Based on this expertise in high pressure, and extremely high pressure tubes, MEILONG’s state-of-art factory is exclusively dedicated to the manufacturing and supply of super duplex and high nickel alloys tubes for corrosive downhole applications and is now ready to offer the highest specifications for your toughest challenges.


    NDT

    Full online and real time controls

    100% of tube length & circumference Eddy Current & Ultrasonic Testing


    Inhouse Laboratory

    Mechanical testing

    Metallurgical testing

    Dimensional controls


    MEILONG has been supplying the world’s best coiled tubes up to 3,234 lbs (1,467 kgs) and 14,764 ft (4500 mtrs) length without orbital butt welding.


    Bright annealing treated, our coiled tubes are excellent in both internal and external surface quality.


    Our coiled tubes are specially used in oil and gas industry requiring a higher level of reliability.


    All the products are performed and delivered after ECT as well as hydrostatic & ovality test satisfying ASTM standards.


    MaterialsImperial SizeMetric Size

    OD

    (in.)

    WT

    (in.)

    OD

    (mm)

    WT

    (mm)

    SS316L

    Duplex 2205

    Super Duplex 2506

    Incoloy 825

    Inconel 625

    1/80.1250.0283.180.71
    1/80.1250.0353.180.89
    1/40.2500.0356.350.89
    1/40.2500.0496.351.24
    1/40.2500.0656.351.65
    3/80.3750.0359.530.89
    3/80.3750.0499.531.24
    3/80.3750.0659.531.65
    3/80.3750.0839.532.11
    1/20.5000.04912.701.24
    1/20.5000.06512.701.65
    1/20.5000.08312.702.11
    5/80.6250.04915.881.24
    5/80.2650.06515.881.65
    5/80.6250.08315.882.11
    3/40.7500.04919.051.24
    3/40.7500.06519.051.65
    3/40.7500.08319.052.11

    Applied Standard

    ASTM A213: Standard specification for seamless and austenitic alloy-steel boiler, superheater, and heat exchanger tubes

    ASTM A262: Practices for detecting susceptibility to intergranular attack in austenitic stainless steels

    ASTM A269: Standard specification for seamless and welded, austenitic stainless steel tubing for general use

    ASTM A370: Test methods and definitions for mechanical testing of steel products

    ASTM A450: Standard specification for general requirements for carbon, ferritic alloy, and austenitic alloy steel tubes

    ASTM A632: Standard specification for seamless and welded, austenitic stainless steel tubing (small diameter) for general use

    NACE MR 0175: Selection and qualification of carbon and low-alloy steels, corrosion-resistant alloys, and other alloys for service in equipment in oil and natural gas production and NG treatment plants in H2S-containing environment

    EN10204: Inspection documents for metallic products


    Manufacturing Process and Resultant Properties

    Seamless extruded tube hollows are drawn or drawn / sunk to final size to produce seamless tubing coils 500 to 2,000 ft. long, depending upon the size. The tubing is heat treated and joined by orbital welding to achieve the desired length. The final material condition of the tubing is heat treated.


    Nondestructive Testing (NDT)

    Eddy current testing (ECT) is performed at final size in the heat treated condition. Radiographic testing is performed on all orbital welds. Yield pressure hydrostatic testing is performed on the heat treated tubing at final size.


    Quality Assurance

    Eddy current test (ECT)

    Ultrasonic test

    Hydrostatic test

    Chemical composition analysis

    Tensile test

    Hardness test

    Dimension & visual inspect

    Metallographic analysis


    Standards and Specifications

    ASTM A269, Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service


    Meets the material limits for 316L austenitic stainless steel listed in ISO 15156-3, Table A.2.


    Norm Equivalence

    GradeUNS NoEuro normJapanese
    NoNameJIS
    AlloyASTM/ASMEEN10216-5EN10216-5JIS G3463
    316LS316031.4404, 1.4435X2CrNiMo17-12-2SUS316LTB
    2205S318031.4462X2CrNiMoN22-5-3SUS329J3LTB
    2507S327501.4410X2CrNiMoN25-7-4
    625N066252.4856NiCr22Mo9Nb
    825N088252.4858NiCr21Mo



    Quality 316L Seamless Stainless Steel Tubing , SS Seamless Tubes Polished Surface for sale
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