Product Details:
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Alloy: | Duplex 2205, UNS S32205 | Surface: | Clean And Bright |
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Condition: | Annealed | Properties: | Enhanced Tensile And Yield |
Feature: | High Pressure Tubing | Application: | Down Hole Hydraulic Control In Oil And Gas Wells |
Standard: | ASTM A789 | Size: | Tight Dimensional Tolerances |
Application Standard: | NACE MR0175 / ISO15156 | Test: | 100% Length Is Hydraulic Tested |
High Light: | Duplex 2205 Stainless Steel Coiled Tubing,Stainless Steel Coiled Tubing 1.65mm,Control Line Tubing 0.065IN |
3 / 8 '' OD x 0.049 '' WT Duplex 2205 stainless steel tubing coil capillary tube
Meilong Tube specially manufactures seamless and redrawn, welded and redrawn hydraulic control line capillary tube which are made from corrosion-resistant austenitic, duplex, super duplex stainless steels and nickel alloy grades. The tubing is used as hydraulic control lines and chemical injection lines specially serving oil and gas, geothermal industry.
Typical Size of Stainless Steel Tubing Capillary Tube
Outside diameter of chemical injection lines is mainly 3/8’’ (9.53mm).
Wall thicknesses: 0.035’’ (0.89mm), 0.049’’ (1.24mm), 0.065’’ (1.65mm), 0.083'' (2.11mm)
Control line tubing is available in lengths from 400 feet (122 meters) to 32,808 feet (10,000 meters). No orbitally butt welds.
Other specifications (1/8’’ to 3/4’’) are available on request.
Importance of Stainless Steel Tubing Capillary Tube
Each one stainless steel tubing capillary tube is a completely continuous length without orbital welds.
Each one tubing coil is hydrostatic tested at minimum 10,150 psi.
The test can be witnessed on site by the third party inspectors (SGS, BV, DNV).
Other tests are eddy current test, chemicals, flattening, flaring, tensile, yield, elongation, hardness for the material quality.
Application for Stainless Steel Tubing Capillary Tube
Chemical Injection Line
A small-diameter conduit that is run alongside production tubulars to enable injection of inhibitors or similar treatments during production. Conditions such as high hydrogen sulfide [H2S] concentrations or severe scale deposition can be counteracted by injection of treatment chemicals and inhibitors during production.
A general term for injection processes that use special chemical solutions to improve oil recovery, remove formation damage, clean blocked perforations or formation layers, reduce or inhibit corrosion, upgrade crude oil, or address crude oil flow-assurance issues. Injection can be administered continuously, in batches, in injection wells, or at times in production wells.
Other Applications
Stainless steel tubing coil control line for chemical injection
Bare and encapsulated hydraulic control line coiled alloy tubing for subsea safety valves
Velocity strings, work strings, and steel tube umbilicals
Geothermal coiled alloy tubing
Alloys for Stainless Steel Tubing Capillary Tube
Austenitic: | 316L | ASTM A-269 |
Duplex: |
S31803/S32205 S32750 |
ASTM A-789 ASTM A-789 |
Nickel alloy: |
N08825 N06625 |
ASTM B-704; ASTM B-423 ASTM B-704; ASTM B-444 |
Capillary Stainless Steel Tubing Features
Close dimensional tolerances
Considerably enhanced mechanical properties
Superior surface finish
High cleanness of inside surface
Controlled ovality, eccentricity
Chemical Compositions of Duplex 2205 for Stainless Steel Tubing
Carbon | Manganese | Phosphorus | Sulfur | Silicon | Nickel | Chromium | Molybdenum | Nitrogen |
% | % | % | % | % | % | % | % | % |
max. | max. | max. | max. | max. | ||||
0.03 | 2.00 | 0.030 | 0.020 | 1.00 | 4.5-6.5 | 22.0-23.0 | 3.0-3.5 | 0.14-0.20 |
Norm Equivalence
Grade | UNS No | Euro norm | Japanese | |
No | Name | JIS | ||
Alloy | ASTM/ASME | EN10216-5 | EN10216-5 | JIS G3463 |
2205 | S31803 | 1.4462 | X2CrNiMoN22-5-3 | SUS329J3LTB |
Material Description
Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic, like SS304 stainless, nor purely ferritic, like SS430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, Duplex 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, Duplex 2205 is the most widely used grade in the duplex family of stainless steels.
The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).
Usage of 2205 Duplex stainless steel should be limited to temperatures below 600° F. Extended elevated temperature exposure can embrittle Duplex 2205 stainless steel.
Corrosion Resistance
2205 duplex stainless steel is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.
The combination of chromium, molybdenum and nitrogen convey the good resistance of 2205 to chloride pitting and crevice corrosion. This resistance is extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. The high chromium, molybdenum and nitrogen contents of 2205 provide corrosion resistance superior to common stainless steels, such as, SS316L and SS317L in most environments.
Properties of Duplex 2205 Stainless Steel Tubing
Seam-welded & floating internal plug redrawn tubing. Supplied in the annealed condition
Continuous length without orbital joint welds
Alloy | UNS | O.D. | W.T. | Working Pressure | Burst Pressure | Collapse Pressure | Test Pressure | |
inch | inch | inch | Psi | psi | psi | psi | ||
Duplex 2205 | S32205 | 1/8 | 0.125 | 0.028 | 15,544 | 41,704 | 15,544 | 17,400 |
Duplex 2205 | S32205 | 1/8 | 0.125 | 0.035 | 19,430 | 52,130 | 19,430 | 21,025 |
Duplex 2205 | S32205 | 1/4 | 0.250 | 0.035 | 9,715 | 26,065 | 9,715 | 10,875 |
Duplex 2205 | S32205 | 1/4 | 0.250 | 0.049 | 13,631 | 31,784 | 12,821 | 14,500 |
Duplex 2205 | S32205 | 1/4 | 0.250 | 0.065 | 18,076 | 40,182 | 15,824 | 19,575 |
Duplex 2205 | S32205 | 3/8 | 0.375 | 0.035 | 6,492 | 22,226 | 6,786 | 7,250 |
Duplex 2205 | S32205 | 3/8 | 0.375 | 0.049 | 9,082 | 25,230 | 9,156 | 10,150 |
Duplex 2205 | S32205 | 3/8 | 0.375 | 0.065 | 12,056 | 29,302 | 11,629 | 13,050 |
Duplex 2205 | S32205 | 3/8 | 0.375 | 0.083 | 15,382 | 34,858 | 14,087 | 16,675 |
Duplex 2205 | S32205 | 1/2 | 0.500 | 0.049 | 6,815 | 22,574 | 7,095 | 7,250 |
Duplex 2205 | S32205 | 1/2 | 0.500 | 0.065 | 9,038 | 25,172 | 9,126 | 10,150 |
Duplex 2205 | S32205 | 1/2 | 0.500 | 0.083 | 11,540 | 28,536 | 11,217 | 13,050 |
Duplex 2205 | S32205 | 5/8 | 0.625 | 0.049 | 5,446 | 21,147 | 5,785 | 5,800 |
Duplex 2205 | S32205 | 5/8 | 0.625 | 0.065 | 7,213 | 23,038 | 7,492 | 7,975 |
Duplex 2205 | S32205 | 5/8 | 0.625 | 0.083 | 9,229 | 31,216 | 9,288 | 10,150 |
Duplex 2205 | S32205 | 3/4 | 0.750 | 0.049 | 4,534 | 20,265 | 4,887 | 5,075 |
Duplex 2205 | S32205 | 3/4 | 0.750 | 0.065 | 6,020 | 21,738 | 6,344 | 6,525 |
Duplex 2205 | S32205 | 3/4 | 0.750 | 0.083 | 7,684 | 23,560 | 7,919 | 8,700 |
Theoretical burst pressure based on minimum wall thickness, and minimum tensile strength
Theoretical collapse pressure based on minimum wall thickness, and minimum yield strength
Pressure rating at 100°F (38°C), neutral and static conditions
Tubing Process and Packing
Seamless- pierced, redrawn, annealed (multi-pass circulation process)
Welded- longitudinally welded, redrawn, annealed (multi-pass circulation process)
Packing- Tubing is level wound coiled on the metal / wooden drums or spools.
All drums or spools are packed in wooden crates for easy logistic operation.
Contact Person: Mr. John Chen
Tel: +8618551138787
Fax: 86-512-67253682