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Grain Size Oil Gas Fields Seamless Stainless Steel Tubing Corrosion Resistance

Categories Seamless Stainless Steel Tubing
Brand Name: MEILONG
Model Number: 3/8'' OD x 0.065'' WT
Certification: ISO9001:2015, PED 97/23/EC
Place of Origin: China
MOQ: 500 pcs
Payment Terms: L/C, T/T
Supply Ability: 150000 meters per month
Delivery Time: 10 days (for our required MOQ)
Packaging Details: Damp-proof protected, wooden case packing
Material: Super Duplex 2507 comply with NACE MR0175/ISO15156
Tube type: Seamless
Condition: Bright annealed
Length: Standard 6000mm or 6100mm
Qualification: Air tightness tested
Application: Oil and gas fields
Surface: Metallic bright
Specialty: High-pressure hydraulic
Price: Negotiable
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    • Product Details
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    Grain Size Oil Gas Fields Seamless Stainless Steel Tubing Corrosion Resistance

    Super Duplex 2507 Stainless Instrument Tubing Corrosion Resistance Smooth Surface


    Super Duplex Stainless 2507, Chemical composition

    ElementComposition, %
    Chromium24.0-26.0
    Nickel6.0-8.0
    Molybdenum3.0-5.0
    Manganese1.2 max.
    Silicon0.8 max.
    Carbon0.030 max.
    Sulfur0.020 max.
    Phosphorous0.035 max.
    Nitrogen0.24-0.32

    Application: Super duplex alloy combining excellent strength with good corrosion resistance in high chloride and seawater environments

    Tensile strength, min.: 116ksi (800MPa)

    Yield strength, min.: 80ksi (550MPa)

    Elongation in 2 in., min.: 15%

    Hardness, max.: Brinell 310, or Rockwell C 32


    Quality Assurance

    Non Destructive Tests:

    Hydrostatic

    Eddy Current

    Surface Roughness

    Dimensional Analysis


    Destructive Tests:

    Yield Strength

    Tensile Strength

    Elongation

    Positive Material Identification (PMI)

    Grain Size

    Rockwell Hardness


    Stainless steel tubes are delivered in straight lengths

    Steel grades ensures high corrosion resistance

    Special eccentricity and controlled hardness is ideal for hydraulic & instrumetation system

    High surface smoothness and close dimensional tolerance, polished outside surface is the option

    High inside surface cleanness

    Tube be eddy current tested. Hydrostatic test is the option

    The tube mill is ISO 9001, PED 97/97/23/EC approved


    Production Process

    Seamless & Redrawn Tubing

    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.


    Super Duplex Stainless 2507 material provides excellent corrosion resistance in chloride-containing environments.

    All Super Duplex Stainless 2507 control line tubing offered by MEILONG are made from a controlled-chemistry. Super Duplex Stainless 2507 material with minimum pitting resistance equivalent (PRE) value of 42.5

    Size include 1/4’’, 3/8’’, 1/2’’, 5/8’’, 3/4’’, and 1 in. outside diameter.

    Tubing nominal wall thickness meets ASTM A-789

    Tube markings include size, material type/grade, specification, heat number, and other information.


    • Order specification (in metric size mm):

    6.0 x 1.0

    6.0 x 1.2

    6.0 x 1.5

    8.0 x 1.0

    8.0 x 1.2

    8.0 x 1.5

    10.0 x 1.0

    10.0 x 1.2

    10.0 x 1.5

    10.0 x 2.0

    12.0 x 1.0

    12.0 x 1.2

    12.0 x 1.5

    12.0 x 2.0


    • Steel grades
    StandardTDRSteel Grade
    ASME
    ASMESA269304
    ASMESA269304L
    ASMESA269316
    ASMESA269316L

    Other steel grades or alloy grades are available, e.g. 904L, 317, duplex 2205, alloy 400, alloy 600, alloy 800, alloy 825


    Hydraulic & Instrumentation Tubes are important components in hydraulic and instrumentation systems to protect and partner with other components, devices or instruments to secure the safe and trouble-free operations of oil and gas plants, petrochemical processing, power generation and other critical industrial applications.


    • Bright annealed

    Reduce contamination with smart surface


    • Controlled hardness

    Effective sealing with ferrules


    • End capped

    Maintain high cleanness


    • Fixed lengths

    Efficient work planning & material control


    • High roundness

    Effective sealing at connections


    • High cleanness

    Reduce contamination-risks in the system


    • 100% eddy-current and hydrostatic tested

    Secure high & consistent quality


    • 100% PMI tested

    Eliminate risk & hazards


    • Controlled dimensional tolerances

    Secure high performance with other components in the system


    • Dual grade & specification marked & certified

    Conform to a large variety of technical requirements


    Applications

    Instrumentation & control lines, safety systems, sampling & analyzer lines, hydraulic systems, pneumatic lines, process impulse lines, signal transmission lines, subsea equipment, fuel & CNG lines, compressors

    • Oil and gas
    • Petrochemical
    • Automotive & rail
    • Marine & shipbuilding
    • Power generation
    • Desalination plants
    • Medical & pharmaceutical
    • Pulp & paper

    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

    Since 1999, Meilong Tube Co., Ltd. has produced both long coils and straight length of stainless steel and high nickel alloy tubing for numerous oil and gas applications, including hydraulic power, monitoring and control equipment, instrumentation, injection lines, down-hole safety valve control, subsea umbilical applications. Unique manufacturing capabilities and processes allow Meilong to produce the longest continuous length control line tubing available in stainless steels and high nickel alloys.


    Our coiled tubing is available in a number of high performance corrosion resistant stainless steels and high nickel alloys, including 300 series, Incoloy, Inconel, capable of withstanding a variety of severe environmental conditions.


    We specialize in manufacturing small diameter tubing ranging from 0.125 inch to 1 inch outside diameter (3.18mm to 25.4 mm) and a variety of wall thickness. Besides straight length instrumentation tubing, tubing is level wound coiled on various size spools, and products are tested and evaluated for specific applications before delivery. Our engineering staff welcome the opportunity to work with customers to solve special problems.


    Vacuum annealing

    Meilong takes special care during manufacturing to assure ID and OD cleanliness of instrumentation tubing. Vacuum annealing insures volatility of metallic oxides and removal of any residual degreasing solvents or drawing lubricants. Vacuum annealing our stainless steel tubing insures a bright, cosmetically appealing surface as well as excellent mechanical properties.


    Meilong commitment to quality excellence

    From the time an order is received, sent through the production process, completed, and finally shipped, many levels of inspection occur to reinforce Meilong’s Quality Policy. The job of ensuring quality products extends as far as our machine operators. Meilong operators take ownership over material processed at their stations by measuring for dimensional accuracy and conducting a visual inspection of every piece.


    Quality Grain Size Oil Gas Fields Seamless Stainless Steel Tubing Corrosion Resistance for sale
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