Bi-metal composite clad pipe

Bi-metal Clad Pipe and Bend are cast with mold vanishing vacuum suction casting cladding process. Outer of straight pipe is common steel pipe, cladding realized by forming high chromium lining via centrifugal forming technique.

Bi-metal composite clad pipe takes carbon steel or low alloy steel pipe as base pipe and CRA pipe as layer or lining pipe by patented technology and special equipment, it is produced in a special metallurgical or mechanical process to guarantee a tight bonding between base pipe and layer or lining pipe and combines strength of carbon steel or low alloy steel and corrosion resistance of CRA into one innovated pipe which is cost effective and reliable.

We produce bimetal mechanically lined pipes using unique hydraulic forming technique to achieve a perfect bond between base pipe and lining pipe. The great advantage of hydraulic forming technique is that the pressure can be distributed equally over the girth, therefore achieve a perfect bond. This process could minimize the surface damage of CRA lining pipe. By seal welding or bead welding, the end of lined pipe is convenient for site assembly. We can produce bimetal mechanically lined pipes with outer diameter of 15mm-1118mm and cut-length of 3-12m.
CRA Longitudinally Welded Pipes
Our welding process is the most advanced way of producing welded pipes with a variety of specifications and materials such as stainless steel, nickel alloys, titanium alloys. We can meet customers’ satisfaction in large-diameter, thin-wall, straightness, roundness and other technical requirements,guarantee corrosion resistance performance of the CRA longitudinally welded pipe.

applications of Bi-metal composite clad pipe

Oil and gas collection pipelines, oil and gas well casing, sewage return line;Chemical heat exchanger tube bundle;Electric power except brine, desulfurization pipeline, etc.Metallurgy, seawater desalination, pharmaceutical chemical, sewage treatment, new energy, food processing and other industries.

Cold, hot water pipe, direct drinking water pipe, heating, solar energy, ground source heat pump;Civil buildings to water pipes and water pipes;Air conditioning circulating pipe, fine decoration high-grade commercial housing to the water pipe.

1. Manufacturing Process of Bimetal Clad Pipe and Bend:
Bimetal Clad Pipe and Bend are cast with mold vanishing vacuum suction casting cladding process. Outer of straight pipe is common steel pipe, cladding realized by forming high chromium lining via centrifugal forming technique. Outer of bend uses hot-bending bend and lining is cast with high-chromium cast iron. Bends and other profile sections can be cladded in whole and this process has changed the traditional practice to fabricate bend and other profile sections by drawing polyline without changing flow pattern of material inside piping,greatly reducing conveyance resistance of material.

Advantages of Bi-metal composite clad pipe Compared with Traditional Wear Resistant

1. Good wear-resistance, giving full play to wear-resistance of high chromium cast iron.
2. Withstanding high pressure:
Bi-metal Lined Steel Pipe and bend can be used for any pressure rating. Close bonding of outer and lining by adopting special process make cladding interlayer molten-joint to ensure reliable operation.
3. Good mechanical impact and thermal impact resistance property.
4. Convenient in connection for installation:
Bi-metal Lined Steel Pipe and bend can be cut and welded as you like.

Physical Properties of Bi-metal Lined Steel Pipe: