Product Details:
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Alloy: | Duplex 2205, UNS S32205 | Surface: | Clean And Bright |
---|---|---|---|
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: | Seamless 1 2 stainless coil,Redrawn Capillary 1 2 stainless coil,1 stainless steel coil tubing 2205 |
Seamless and redrawn capillary tubing injection line made from Duplex 2205
Meilong Tube specially manufactures seamless and redrawn, welded and redrawn coiled tubing 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 Chemical Injection Line
Outside diameter of control 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 Chemical Injection Line
Each one tubing coil is a completely continuous length without orbital welds.
Each one tubing coil is hydrostatic tested at minimum 11,600 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 Description for Injection Line
In all fields of the oil and gas industry, chemicals are injected into process lines and fluids. Take oilfield services, chemicals are used to film the side of the wellbore for improved stability. In pipelines they avoid build-up and keep the infrastructure healthy.
The Role of Chemical Injection Line
In the oil and gas industry we inject chemicals in order
to protect the infrastructure
to optimize processes
to assure flow
and to improve productivity
Alloys for Injection Lines
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 |
Injection Line Tubing Features
Close dimensional tolerances
Considerably enhanced mechanical properties
Superior surface finish
High cleanness of inside surface
Controlled ovality, eccentricity
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.
Duplex 2205 for Chemical Injection Line
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 |
Standard Equivalence
Grade | UNS No | Euro Standard | Japanese | |
No | Name | JIS | ||
Alloy | ASTM/ASME | EN10216-5 | EN10216-5 | JIS G3463 |
2205 | S31803 | 1.4462 | X2CrNiMoN22-5-3 | SUS329J3LTB |
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.
Application
Chemical process vessels, piping and relevant heat exchanger tubing
Pulp mill digesters, bleach washers, chip pre-steaming vessels
Food processing equipment
Oil field piping and relevant heat exchanger tubing
Flue gas desulfurization equipment
Contact Person: Mr. John Chen
Tel: +8618551138787
Fax: 86-512-67253682