Duplex Stainless Steel Capillary Coiled Tubing , 2205 2507 Hydraulic Coiled Tubing String
Corrosion Resistant Duplex Stainless Steel 2205, 2507 Hydraulic Control Line Tube
Tiptop offers a variety of duplex stainless steel, super duplex stainless steel welded and seamless tubing, depending upon the properties the tubing is required to exhibit. Other alloys and sizes are also available upon request. Duplex stainless steels (named for their austenite and ferrite compositions), has greater yield strength than austenitic stainless steel.
Standard: ASTM-A 789 Standard specification for seamless and welded ferretic/austenitic stainless steel tubing for general service. This specification covers various grades of duplex stainless steels.
Chemical Composition
| Grade | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu |
| S31803 (2205) | 0.030 | 2.000 | 0.030 | 0.020 | 1.000 | 4.5-6.5 | 21.0-23.0 | 2.5-3.5 | 0.08-0.20 | … |
| S322505 (2205) | 0.030 | 2.000 | 0.030 | 0.020 | 1.000 | 4.5-6.5 | 22.0-23.0 | 3.0-3.5 | 0.14-0.20 | … |
| S32750 (2507) | 0.030 | 1.200 | 0.035 | 0.020 | 0.800 | 6.0-8.0 | 24.0-26.0 | 3.0-5.0 | 0.24-0.32 | 0.500 |
Duplex 2205 Stainless Steel Coiled Control Line Tubing Features
Close dimensional tolerances
Enhanced mechanical properties
Superior surface finish
High cleanness of inside surface
Controlled ovality, eccentricity
Delivery condition
Cold worked
Bright annealed
Annealed and polished
Application
Control line
Chemical injection line
Electrical line
Multi-line flat pack
Hydraulic line
Tubing encapsulated conductor
Intelligent well completions
Capillary tubing
Seamless control lines are used in SCSSV, Chemical Injection, and Advanced Well Completions. Seamless tubes provide another tubing solution for our customer's complex well designs. The most common uses for Seamless line tend to be shorter length applications whereby no orbital welds are required.
Welded Control Lines are the preferred construction for lines being used in downhole oil and gas applications. Our welded control lines are used in SCSSV, Chemical Injection, Advanced Well Completions, and Gauge Applications.
| Material | OD | Wall Thickness (inch) | Working Pressure (MPa) | Length (M/Reel) |
| Duplex 2205, Super Duplex 2207 | 1/8” | 0.025”, 0.035”, 0.049” | 80--120 | 50--4000 |
| Duplex 2205, Super Duplex 2207 | 1/4” | 0.035”, 0.049”, 0.065” | 60--120 | 50--3000 |
| Duplex 2205, Super Duplex 2207 | 3/8” | 0.035”, 0.049”, 0.065” | 60--120 | 50--2500 |
| Duplex 2205, Super Duplex 2207 | 1/2” | 0.035”, 0.049”, 0.065” | 60--120 | 50--2000 |
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