Closeup of Conventional Coiled Tubing spool

QT-800 Coiled Tubing

QT-800 is manufactured from high-strength, low-alloy steel (HSLAS) with alloying additions to provide resistance to atmospheric corrosion. The chemical composition of QT-800 meets the specification requirements of API 5ST CT80.

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  • Ruler Specifications
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Description

QT-800 offers increased axial load, cycle life, and reduced ovality growth required for the more demanding applications than the QT-700 while still performing well in sour service.

For the appropriate sizes, QT-800 can be routinely ordered as a True-Taper™ string; straight-wall, straight-wall flash-free string; or as a string with an electric wireline or capillary tube installed.

Specifications

QT-800 Coiled Tubing Mechanical Properties

 

Outside diameter

0.750 to 3.500 in. (19.1 to 88.9 mm)

Wall thickness

0.087 to 0.250 in. (2.2 to 6.35 mm)

Minimum yield strength

80,000 psi (552 MPa)

Minimum tensile strength

90,000 psi (621 MPa)

Maximum hardness

22 HRC

Resources
  • QT-800 Technical Data Sheet

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