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: