• Steel Flanges

    A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system, provides easy access for cleaning, inspection or modification. read more

  • Pipe Fittings

    The ends of all buttweld fittings are bevelled.The shape of the bevel depending upon the actual wall thickness.This bevelled ends are needed to be able to make a "Butt weld". read more

  • Steel Pipes

    Pipe is a hollow tube with round cross section for the conveyance of products. The products include fluids, gas, pellets, powders and more. read more

After receiving the hot induction bends purchase order from Summit company, haihao pipe fittings department pay more attention on this bends production . Because of the large dimenions and high strength material.


The tangent pipe bends material in this new order is API 5L X60 steel grade, which is high requirement than our regular orders. The specification is 20″, R=8D according to the standard ASME/ANSI B16.49.  After studied the PO requirement , our engineers discussed the products with our clients and confirmed the production plan . We chose the LSAW API 5L X60 PSL1 steel pipes as the raw material ,which proved a correct and acceptable choice finally.


After the hot induction bending of the API 5L X60 pipes, we inspected the welded seam of the LSAW , the welding joint quality is still very good. dimensions of the bends and the ends all are as per the standard and clients request perfectly.
The finish of the bends is black varnish ,after we stamped the marking of hebei haihao brand (HH) on the bends, the order is finished .

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haihao has been a professional supplier of pipes,fittings and flanges, serving the world industry piping since 1982.
oil and gas industry

as a leading manufacturer,stockist and supplier, our knowledgeable and experienced technical team can understand well what you need . help you find the best solution for your regular and specific requirement.
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Serving the world flowing! Aiming to be the best in the field! Improving level of “Made in China”!”

Tom , Haihao Group

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