Cold Drawn High Strength Duplex Seamless Stainless Steel Coiled Tubes

Duplex stainless steel tubing coils are charactrized by good resistant to the cracking caused by chloride stress corrosion in austenitic grades, and have improved resistance to localised corrosion, very high mechanical strength. Our factory specilizes in manufacturing high quality duplex stainless steel tubing in a wide range of duplex stainless steel grades. Details as below:

Product standards:
Duplex stainless steel tubings are usually manufactrued and inspected under below standards:

• EN 10216-5 TC1/TC2
• ASTM A789,ASTM A790
• PED 97/23/EC, AD 2000
• NACE MR0175

Other requirements, standards on customers requests.

Size range:

Outside Diameter: 1/8’’ – 1/2’’ (3.175 mm – 12.7 mm)

Coiled tubing length: up to 32,808 feet (10,000 m)

Tubing with minimum orbital welds reduces the risk of leakages when connecting tubes, and suitable for delivery for customers need.

Single coiled tubing is available

The tubes are delivered with plastic caps for protection from potential contamination during storage.

Materials / steel grades:
Duplex stainless steel tubings are available in AISI standards and EN/DIN standards, and other standards on customers' requests.
UNS: S31500,S31803,S32205,S32760,S32750
EN /DIN: 1.4462, 1.4510,

Advantages:
Duplex stainless steel tubings have many advantages as below:

• High corrosion resistance;
• Significantly more uptime than carbon steel pipes and conventional stainless steel pipes
• High mechanical strength
• Lighter constructions, more compact system design and less welding.

Delivery conditions
Mostly the stainless steel coil tubing is supplied in bright annealed conditon.

Packing

Coiled tubing is level wound on the spool/reel

Metal reels and marking can be specified by the customer

Application

Control line

Chemical injection line

Electrical line

Multi-line flat pack

Hydraulic line

Tubing encapsulated conductor

Intelligent well completions

Capillary tubing

Size Chart

Chemical Application:

With the leading direction of producing High pressure extra long stainless steel control line tube(stainless steel coiled tubes), TIPTOP has become a high-tech industrial company integrating domestic research and development, production and sales. The company successfully developed a series of stainless steel testing cables in 2000. In recent years, the company has been committed to the research and development of duplex steel and nickel alloy control lines, and has been widely approved in the international market.

The company covers an area of 20,000 square meters and a building area of 12,000 square meters. The company has several stainless steel tube production lines, tube making units, tube drawing units, well-type electric furnaces, online vacuum light furnaces and other production equipment. The company also has a quality inspection center that meets the national stainless steel tube quality inspection requirements. The quality inspection center has a 300Mpa hydraulic test machine, tensile test bench, Vickers hardness tester, 500°C temperature resistance test furnace, eddy current flaw detector and a series of stainless steel products. Testing and inspection equipment to ensure the reliability and stability of the chemical and physical properties of stainless steel products.　

The company annually produces more than 3,000 tons of stainless steel control lines and other products, sales marked covers both domestic and overseas, for domestic, we are network-enterprise company of CNOOC, Petro China and Sinopec, as for international,it has been widely used in Middle East, Southeast Asia, South America, Australia and so on.　

On the premise of improving the quality of its own brand products, the company has continuously increased the research and development of new products, and has cooperated and actively invested with many domestic universities and scientific research institutions. In recent years, the company has passed the certifications of CCS, GL, DNV and other classification societies.

With our support,you will have:

1. Technical data, technical guidance and training for free
2. Professional engineer to the site for tracking service
3. "just-in-time supply"(that is, supply at any time according to the actual demand of customer), in this way customers achieve zero inventory, maximize profits.
4. Most favorable offer,we take "taking small profits" as the principle.
5. 100% qualified product,Our company will strictly follow the requirements of relevant technical standards , grasp various links of production, and ensure product performance .
6. sufficient after sales services.

We are looking forward to developing business with friends from home and abroad on the basis of equality and mutual benefits!welcoming your enquiries!