Coiled Tubing

MEILONG TUBE manufactures high quality laser seam welded corrosion resistant alloy coiled tubing for a variety of downhole and offshore applications, including extremely long length coiled tubing. Applications include gas and chemical injection, hydraulic control line, steel tube umbilicals, and work and velocity strings.

Typical dimensional range
Outside diameter
Wall thickness 6.35mm
0.250’’ 7.95mm
0.313’’ 9.53mm
0.375’’ 12.7mm
0.500’’ 15.88mm
0.625’’ 19.05mm
0.750’’
0.89mm / 0.035’’
1.24 / 0.049
1.65 / 0.065
2.11 / 0.083
Other sizes are available on request

Steel grades
Austenitic steel 316L, UNS S31603
Duplex 2205, UNS S3205
Super duplex 2506, UNS S32750
Alloy 625, UNS N06625
Alloy 825, UNS N08825

Applied standards
ASTM A-269 / ASME SA-269
ASTM A-789 / ASME SA-789
ASTM B-704 / ASME SB-704

MEILONG TUBE manufactures high quality laser seam welded corrosion resistant alloy coiled tubing for a variety of downhole and offshore applications, including extremely long length coiled tubing. Applications include gas and chemical injection, hydraulic control line, steel tube umbilicals, and work and velocity strings.

Typical dimensional range

Other sizes are available on request

Steel grades

Austenitic steel 316L, UNS S31603

Duplex 2205, UNS S3205

Super duplex 2506, UNS S32750

Alloy 625, UNS N06625

Alloy 825, UNS N08825

Applied standards

ASTM A-269 / ASME SA-269

ASTM A-789 / ASME SA-789

ASTM B-704 / ASME SB-704

Quality assurance

The quality of our products for the control line in oil and gas sector is assured not just during the controlled manufacturing process but also by way of finished product testing. Typical tests include:

• Non-destructive tests (ET, UT)

• Hydrostatic tests

• Surface finish controls

• Dimensional accuracy measurements

• Flare and coning tests

• Mechanical and chemical property testing