Umbilical Seamless Capillary Coiled Tubing Super Duplex Stainless 2507
|Place of Origin:||China|
|Certification:||ISO9001:2015, PED 97/23/EC|
|Model Number:||3/8'' OD x 0.065'' WT|
Payment & Shipping Terms:
|Minimum Order Quantity:||10000 feet|
|Packaging Details:||Level wound coiled on wooden spool, and wooden case packing|
|Delivery Time:||10 days (for our required MOQ)|
|Payment Terms:||L/C, T/T|
|Supply Ability:||150000 meters per month|
|Material:||Duplex 2205 Comply With NACE MR0175/ISO15156||Tube Type:||Seamless|
|Condition:||Bright Annealed||Length:||Up To 10000 Meters Long Per Reel|
|Qualification:||Hydrostatic Tested||Application:||Oil And Gas Fields|
|Surface:||Metallic Bright||Specialty:||High-pressure Hydraulic|
annealed stainless steel tubing,
stainless steel coil tubing
Duplex Stainless 2205 Seamless Stainless Steel Tubing High Cleanliness
Duplex Stainless 2205, Characteristics and properties
Duplex stainless 2205 seamless pressure tubing in the heat treated condition is typically used in oil and natural gas wells for chemical injection applications. In such applications, it is commonly referred to as capillary tubing and is free-hanging (self-supporting) inside the production casing. The chemicals being injected are often used to enhance production flow rates, inhibit corrosion or scaling and/or de-water. However, the tubing can also be used for control line tubing applications including hydraulically actuated surface-controlled subsurface safety valves. For control line applications, the tubing is generally deployed by strapping it to the outside of the production casing. The tubing is frequently supplied as 5,000 to 35,000 ft. coils on a wooden or steel reel, depending on size.
Alloy 2205 is a duplex stainless steel. When properly heat treated, the microstructure consists of a nearly equal mixture of the austenitic and ferrite phases. This two-phase microstructure produces a fine grain size which increases the yield strength. In the final heat treated condition, Duplex stainless 2205 can achieve a yield strength approximately twice that of austenitic alloys such as 316L, 825 and 625 which must be cold worked to achieve comparable yield strengths. Duplex stainless steels are often classified as lean, conventional, super or hyper based upon their pitting resistance equivalent (PRE or PREN). Various PRE formulas are used to rank an alloy’s resistance to chloride pitting corrosion based upon its composition. Duplex stainless 2205 typically has a PRE of 36 and is considered a conventional duplex stainless steel. Duplex stainless 2205 is often selected for use in oil and gas production environments based upon its higher strength and resistance to pitting, crevice and stress corrosion cracking in chloride containing environments. Consult ISO 15156-3, Table A.24 for the limits regarding the use of alloy 2205 in hydrogen sulfide containing environments for oil and gas production.
Non Destructive Tests:
Positive Material Identification (PMI)
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.
Available size and alloy materials
|Materials||Imperial Size||Metric Size|
Super Duplex 2506
Duplex Stainless 2205, Chemical composition
Application: High mechanical strength and good resistance to localized cracking & chloride stress corrosion.
Tensile strength, min.: 90ksi (620MPa)
Yield strength, min.: 65ksi (450MPa)
Elongation in 2 in., min.: 25%
Hardness, max.: Brinell 290, or Rockwell C 30.5
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.
Oil and Gas: Subsea
Sub-Surface Safety Valves (SSSV) / Umbilicals: Tubes filled with Hydraulic Fluid which run from floating platform or FPSO to the well head on the sea floor.
Oil and Gas: Downhole
Downhole Control Lines: Tubes running from above ground surface controls into a downhole well to the location of the well’s safety valve.
Calcite Inhibition System: Carries chemicals into earth’s crust to flash point of water in a geothermal well; injected to break down calcite deposits and extend life of the well.
Common connection tubing for control panels, pneumatic equipment, and fluid lines.
Since 1999, Meilong Tube Co., Ltd. has produced long coils 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. All 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.
Meilong’s seamless control line tubing is drawn from seamless extruded tube hollows to ensure absolute product safety and reliability. Our seamless line tubing is one continuous length of tubing, completely free of any welded joints or seams. Long length coils reduce installation time and costs by eliminating the need for excessive joints preparation and fittings. Elimination of excessive fittings increase reliability and assures a leak-free system. We are capable of 100% hydrotesting each coil.
In meeting customer’s requirements, our tubing can be encapsulated in various materials such as thermalplastics, nylon and PVDF. Coiled seamless control line tubing offers many advantages to installers of hydraulic or pneumatic lines on offshore platforms and onshore refineries. It offers unmatched safety and reliability, while at the same time reducing the frequency of costly joint connections. Close tolerance control during manufacturing assures easy insertion and connection to fittings due to tubing’s inherent ductility.
Downhole hole & umbilical tubing
Our long length seamless coils are used extensively for chemical injection and hydraulic control in subsea and onshore wells. The long length minimizes the number of orbital welds which reduces the potential for weld-related defects and failures. Additionally, our coils have an extremely clean and smooth ID surface that is ideal for hydraulic and chemical injection systems. Seamless stainless steel coils offer short hydraulic response time, greater collapse strength, and elimination of methanol permeation.
Meilong takes special care during manufacturing to assure ID and OD cleanliness of control line 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.