Product Description
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
| OD |
Wall
(inch) |
Materials |
Standard |
Working Pressure
(MPa) |
Length |
| 1/8" |
0.02,0.028,0.035 |
Austenitic steel 304L (UNS S30403)
Austenitic steel 316L (UNS S31603)
Duplex 2205 (UNS S32205 & S31803)
Super Duplex 2507 (UNS S32750)
Incoloy 825 (UNS N08825)
Inconel 625 (UNS N06625) |
ASTM-A 269
ASTM-A 632
ASTM-A 789
ASTM-B 704 |
60-120 Mpa |
Customized |
| 3/16" |
0.02,0.028,0.035,0.049 |
| 1/4" |
0.02,0.028,0.035,0.049,0.065.0.083 |
| 5/16" |
| 3/8" |
| 1/2" |
| * OD: Up to 1 inch |
Chemical Application:
| Chemical Composition,% |
| Standard |
ASTM A269 |
ASTM A789 |
ASTM B704 |
| Material |
SS 304 |
SS 304L |
SS 316 |
SS 316L |
Duplex 2205 |
Super Duplex 2507 |
Incoloy 625 |
Incoloy 825 |
| UNS |
S30400 |
S30403 |
S31600 |
S31603 |
S32205 |
S32750 |
N06625 |
N08825 |
| C |
0.08 |
0.035 |
0.08 |
0.035 |
0.03 |
0.03 |
0.1 |
0.05 |
| Mn |
2 |
2 |
2 |
2 |
2 |
1.2 |
0.5 |
1 |
| P |
0.045 |
0.045 |
0.045 |
0.045 |
0.03 |
0.035 |
0.015 |
... |
| S |
0.03 |
0.03 |
0.03 |
0.03 |
0.02 |
0.02 |
0.015 |
0.03 |
| Si |
1 |
1 |
1 |
1 |
1 |
0.8 |
0.5 |
0.5 |
| Ni |
8.0-11.0 |
8.0-12.0 |
10.0-14.0 |
10.0-15.0 |
4.5-6.5 |
6.0-8.0 |
min 58.0 |
38.0-46.0 |
| Cr |
18.0-20.0 |
18.0-20.0 |
16.0-18.0 |
16.0-18.0 |
22.0-23.0 |
24.0-26.0 |
20.0-23.0 |
19.5-23.5 |
| Mo |
... |
... |
2.00-3.00 |
2.00-3.00 |
3.0-3.5 |
3.0-3.5 |
8.0-10.0 |
2.5-3.5 |
| N |
... |
... |
... |
... |
0.14-0.20 |
0.24-0.32 |
... |
... |
| Cu |
... |
... |
... |
... |
... |
0.5 |
... |
1.5-3.0 |
| Fe |
|
|
|
|
|
|
5 |
min 22.0 |
| Al |
|
|
|
|
|
|
0.4 |
0.2 |
| Ti |
|
|
|
|
|
|
0.4 |
0.6-1.2 |
| Cb+Ta |
|
|
|
|
|
|
3.15-4.15 |
... |
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