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Seamless Redrawn Capillary 1 2 Stainless Coil Tubing Injection Line Duplex 2205

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Seamless Redrawn Capillary 1 2 Stainless Coil Tubing Injection Line Duplex 2205

Seamless Redrawn Capillary 1 2 Stainless Coil Tubing Injection Line Duplex 2205
Seamless Redrawn Capillary 1 2 Stainless Coil Tubing Injection Line Duplex 2205 Seamless Redrawn Capillary 1 2 Stainless Coil Tubing Injection Line Duplex 2205 Seamless Redrawn Capillary 1 2 Stainless Coil Tubing Injection Line Duplex 2205

Large Image :  Seamless Redrawn Capillary 1 2 Stainless Coil Tubing Injection Line Duplex 2205

Product Details:
Place of Origin: China
Brand Name: Meilong Tube
Certification: ISO9001 : 2015
Model Number: 3 / 8 '' OD x 0.065 '' WT
Payment & Shipping Terms:
Minimum Order Quantity: 1000 meters
Packaging Details: Level wound coiled on spools/drums, and packed in wooden cases
Delivery Time: 7 days
Payment Terms: L/C, T/T
Supply Ability: 100 metric tons per month (including duplex steel tubing, nickel alloy tubing)

Seamless Redrawn Capillary 1 2 Stainless Coil Tubing Injection Line Duplex 2205

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



ASTM A-789

ASTM A-789

Nickel alloy:



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.




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 Details
Suzhou Meilong Tube Co., Ltd.

Contact Person: Mr. John Chen

Tel: +8618551138787

Fax: 86-512-67253682

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