• Bi-metal clad/lined pipes

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    Bi-metal/mechanically clad pipes, a very good alternative to the metallurgically clad pipes, have been proved efficient and reliable; and last but not least, from the economical point of view the costs, compared to an homogeneous pipe, can be reduced up to more than 55% ! In addition to this, also the expenses for installation and welding can be considerably reduced up to 25% !

    Carbon steel or high yield strength steels are used as outer pipes :
    API 5L grades: X45 – X52 – X60 – X65 – X70
    EEMUA grades: EP360 – EP415 – EP450 – EP485
    DNV grades: 360Mpa – 415Mpa- 450Mpa – 485Mpa

    Corrosion resistance liner pipes can be, but not limited to:
    Stainless steels 300 series: 304L, 316L, 317L
    Superaustenitic alloys: 6Mo, 254 SMO, 904L
    Nickel alloys: monel@ 400, inconel@ 625 and incoloy@ 825
    Liner pipes wall thickness is typically in the range 1,5-3 mm (different w.t upon agreement)

    Gieminox range for clad/lined pipes

    from 2 up to 12 meter length without circumferential seams
    from 4” up to 36” outer pipe dimensions
    from 10 up tp 35 mm wall thickness of the outer pipe

    push-out test and residual compressive stress test
    Determination of gripping force by push-out test
    Bi-axial strain gauges placement on residual compressive stress test as per API 5LD.




    Bi-metal / mechanically clad pipes are manufactured by Gieminox using our own designed and developed manufacturing process. A firm residual contact pressure is achieved by elastic and plastic behaviors of the outer pipe and inner pipe resulting to conform to international standards namely API 5LD and DNV OS-F101.

     

    Metallurgically Clad pipes and Overlay Services


A Company of ALLIED GROUP