Duplex Steel 2205/2507 ASTM A789 Marine Cable Industry Multi-core Tubing
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Duplex Steel 2205/2507 ASTM A789 Marine Cable Industry Multi-core Tubing


Duplex Steel 2205/2507 ASTM A789 Marine Cable Industry Multi-core Tubing

Material: TP304/L, TP316/L, S32205, Alloy 825/N08825, Alloy 400/ N04400, Alloy 625/N06625
Outer Diameter: 1/4'', 3/8'',1/2''
Wall Thickness: 0.035'',0.049'',0.065''
Length : PER FT
Application : ICV remote control
Pressure Rating : 15000 Psi
Additional Material Specs : PVDF Encapsulation Size : 3lines x 1/4" 0.049WT
Additional Features : Color coded, Oil filling, Fluid filling Encapsulation Size : 33 x 11mm

Multi-core Tubing is A small-diameter tube used to operate downhole completion equipment such as the surface controlled subsurface safety valve (SCSSV), is available in five materials, varying wallthicknesses, and a wide range of working pressure ratings. By manufacturing technique, hydraulic control line has 2 categories, Welded tube and Seamless tube.

Multi-core Tubing also is available as per the customer requirement to provide additional crush and abrasion resistance during installation.

As the well configuration, completion technique and more wells workover come up, hydraulic control line demand has been dramatically increased, more demand comes from offshore Deepwater operation, which requires encapsulation multi-core tubing. On the other hand, new technologies are being introduced to the oilfield, like intelligent completion, this boost up hydraulic control line demand.

control line mtsco (4) control line mtsco (5)

Multi-core Tubing Applications:
Downhole hydraulic control lines;
Downhole chemical injection control lines;
Subsea control lines for hydraulic power;

Smoothbore control line used in fibre optic applications;

Test to be done

Eddy current testing
Hydraulic pressure test
Radiographically testing for all orbital joints
Chemical composition
Mechanical properties
Visual inspection

UNS Designation C Si Mn P S Cr Ni Mo N Cu
max max max max max
S31803 0.03 1 2 0.03 0.02 21.0 - 23.0 4.5 - 6.5 2.5 - 3.5 0.08 - 0.20 -
S32205 0.03 1 2 0.03 0.02 22.0 - 23.0 4.5 - 6.5 3.0 - 3.5 0.14 - 0.20 -
S32750 0.03 0.8 1.2 0.035 0.02 24.0 - 26.0 6.0 - 8.0 3.0 - 5.0 0.24 - 0.32 0.5 max
S32760 0.05 1 1 0.03 0.01 24.0 - 26.0 6.0 - 8.0 3.0 - 4.0 0.20 - 0.30 0.50 -1.00

MTSCO multi-core tubing has been successfully applied to some harsh seabed and downhole conditions. Through continuous research and development, it can meet the strict quality requirements of the oil and gas industry and other industries.

We have obtained various classification society certificates such as BV, DNV, CCS, ABS, LR, etc. In addition, the factory is also equipped with eddy current test, hydraulic test, pressure test, tensile test and other test equipment to ensure the quality of products before delivery.



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