Longtaidi Technology (Beijing) Co., Ltd.

The basic principle of bimetallic composite steel pipe: the outer base pipe is responsible for the role of bearing pressure and pipe rigid support, and the lined pipe bears the role of corrosion resistance and wear resistance.

The outer base pipe can choose carbon steel pipe with different diameter and wall thickness according to the flow and pressure requirements of the conveying medium. Hot-dip galvanized steel pipe, straight seam welded pipe, spiral pipe, seamless steel pipe for low and medium pressure fluid transportation, high-pressure boiler, seamless steel pipe for oil cracking, line pipe, etc. The diameter is generally in the range of φ20-φ1020mm, and the wall thickness is generally in the range of 2.5-50mm.

The lined pipe can be selected with different corrosion-resistant alloys according to the chemical composition of the conveying medium. It can be austenitic stainless steel 304, 304L, 316, 316L, copper-based alloy, nickel-based alloy, Hastelloy, titanium, titanium alloy, duplex stainless steel and other new high corrosion resistance alloy materials. The wall thickness of the lining pipe can be designed at about 0.3-5mm according to the requirements of service life and welding process.