Bimetallic Metallurgical Clad Pipe

Downhole oil extraction Gathering and transportation Heat exchanger 

Metallurgical  oil well  clad pipe Material of backing pipe ： J55 、 K55 、 N80/L80 、 C90 、 P110/C110 、 110S , etc. Material of inner pipe ： 13Cr 、 Super13Cr 、 316L 、 UNS N08825 、 UNS N06625 、 Hastelloy G3, etc. Metallurgical  gathering  clad pipe Material of backing pipe:   L245 、 L290 （ X42 ）、 L360(X52) 、 L410(X60) 、 L555(X80), etc. Material of inner pipe ： 316L 、 UNS N08825 、 UNS N06625, etc. Metallurgical heat exchange clad tube Material of backing pipe:   10# 、 20G, etc. Material of inner pipe ： 316L 、 UNS N08825 、 UNS N06625 、 C22 、 C276 、 M400, etc.

Pipeline System offers a variety of CRA clad pipe or lined steel pipes including helical seam clad steel pipe ， longitudinal seam clad steel pipe, and seamless or welded lined steel pipe, and produces the corresponding elbows etc.in accordance with API Spec 5LD, DNV-OS-F101, SY/T6623.  Clad pipes consist of an internal CRA layer which is metallurgically bonded to the backing carbon-steel. Different manufacturing processes (e.g.  Pressure Melting and Anchor Combining,  hot rolling, weld overlay) are used to bond the CRA layer to the carbon steel. In contrast to clad pipes, lined pipes have a CRA lining that is mechanically bonded to the carrier pipe.

What are CRA Cladded Pipes ? CRA refers to corrosion-resistant alloy. The CRA cladded steel pipe is composed of a conventional carbon steel or low alloy steel pipe and a corrosion-resistant alloy layer. The CRA layer is metallurgically bonded (cladded) to the internal or external surface of the steel pipe. The carbon steel or low alloy steel pipe is called base metal, or backing steel. The CRA layer is usually called cladding material. This is economically favorable for large-diameter heavy pipelines since the relatively much thinner CRA layer not only retains enhanced corrosion-resistant properties but also reduces the cost to the minimum. The CRA clad steel pipes are widely used in pipeline transportation systems in the petroleum and natural gas industries. They are also extensively used for marine applications, chemical plant, and power plant, etc. Shanghai Tianyang Steel Tube Technology:  Bimetallic Clad Technology by Pressure Melting and Anchor Combining,  new solution fo...