• QT-900

    First manufactured in 1997 in response to customer’s requirements for a long reach, high pressure coiled tubing, QT-900 achieves a higher fatigue cycle life at higher pressures than all lower strength-rated coiled tubing materials, while performing well in sour service.

    Please scroll down to view available string designs, sizes and mechanical properties for QT-900.


    Available Strings

    • Straight wall
    • Straight wall Flash-Free
    • String with an electric wireline or capillary tube installed


    QT-900 is manufactured from high strength low alloy steel (HSLAS) with alloying additions to provide resistance to atmospheric corrosion. The chemical composition of QT-900 meets the specification requirements of API 5ST CT-90. 

    Outside Diameter0.750” - 3.500” (19.1 mm - 88.9 mm)
    Wall Thickness0.087” - 0.250” (2.2 mm - 6.35 mm)
    Minimum Yield Strength90,000 psi (621 MPa)
    Minimum Tensile Strength98,000 psi (676 MPa)
    Maximum Hardness22 HRC 

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