Bimetallic Metallurgical Clad Pipe

Nickel-base alloy 625 is widely used because of its extensive corrosion resistance, excellent superheat resistance and fatigue strength, excellent tensile/creep deformation and fracture strength, and excellent weld ability. It is an excellent material to avoid localized corrosion (pitting and crevice corrosion), high corrosion fatigue strength, high tensile strength and resistance to chloride ion stress corrosion cracking in seawater. It is used for mooring cables, the blades of motorcycle gunboat propeller, submarine-assisted drive motors, rapid disengagement joints of submarine, exhaust pipelines of navy ship, protective jackets for submarine communication cables, submarine sensor controllers, and expansion joints of steam pipeline. Performance Characteristics 1.        Adhesion strength between layers is more than 210MPa, adhesion rate is 100% It completely solves the problem of weak adhesion strength of the layers that exits in the ordinary ...

Widely applied in heat exchange equipment, such as tube heat exchanger, coiled tube heat exchanger, serpentine tube type heat exchanger, condenser, evaporator and pipelines, etc.. Due to the particularity of titanium, titanium clad pipe commonly use flange connection mode. Performance Characteristics 1.        Adhesion strength is more than 1.2MPa, good mechanical property Titanium usually combines with 316L stainless steel, adhesion strength is 6 times more than national standard, which solves the problem of ordinary clad pipe’s low adhesion strength. 2.        Excellent machining property Titanium clad pipe has excellent mechanical property, high strength, good toughness, good resistance to crevice corrosion, pitting corrosion and stress corrosion.

This product is produced with the most global-advanced technology, through clad molding technology, and form the metallurgical grade of bimetallic copper clad tube. This product is light, has good thermal conductivity and good toughness at low temperature. It not only has the high strength like general metal but also owns the property of copper pipe, such as good formability, good workability. Besides, it is not easy to crack, break and obtain definite ability of frost resisting and impact resistance. This product can be widely used to replace the industrial and civil pure copper pipe, which means significant economic and social benefits, even represents the trend of technology replacement in the global market. Performance characteristics 1.        Adhesion strength between layers is more than 140MPa The copper clad pipe whose outer material is pressure resistant metal pipe and inner material is T2 copper seamless steel pipe. Combine thes...

Clad tube is made of high precision carbon seamless steel tube and seamless stainless steel tube, carbon steel tube is as backing steel material, thin thickness of stainless steel tube is as corrosion resistant material, and they are perfectly combined. The property of heat transfer is excellent, the binding force is very high. Performance characteristics 1.        Adhesion strength between layers is more than 210MPa, adhesion rate is 100% It completely solves the problem of weak adhesion strength of the layers that exists in the bimetal clad tube due to adopting new clad innovation process. The properties of adhesion strength and heat transfer obviously go beyond the current parameters of clad tube. The adhesion strength between layers of ordinary clad tube is 0.2MPa, it increases to more than 210MPa, by 1050 times, and adhesion rate is 100%. 2.        Thermal conductivity of clad tube achieves 200% of that of ...

The technology which really realizes combining the oil pipe with stainless steel pipe closely by using the metal melting method, which can increase the binding force by over 1050 times compared with composite pipes made through traditional mechanical process. This technology improves the safety and usability of products enormously and conforms to the future trend of industry development. Strengthen the exploration of oil and natural gas resources, stabilize the production of domestic oil, promote the rapid growth of natural gas production and promote the development and utilization of unconventional oil and gas resources like coal bed gas and shale gas. This product which will be widely used when petroleum industry gradually turns to high temperature and high pressure engineering. Nickel is an indispensable element of the production of stainless steel and the stainless steel industry takes up 40% of the nickel consumption. Electricity of consumption for producing one ton of n...

Backing Steel: API Specification 5L Cladding layer: API specification 5LC Metallurgical clad pipe: API Specification 5LD

1.        Adhesion strength between layers is more than 210MPa, adhesion rate is 100% It completely solves the problem of weak adhesion strength of the layers that exists in the bimetallic clad pipe due to adopting metallurgical clad technology. The properties of adhesion strength obviously go beyond the current parameters of clad pipe. 2.        Withstand the same as or better pressure than that of seamless steel pipe with the same size The metallurgical clad pipe can realize the ability of excellent pressure taking as 1+1 ≥ 2. After comparing, the pressure taking ability of metallurgical clad pipe is the same as or better than that of the same size seamless steel pipe. 3.        It is more economical t clad welded pipes As shown in the figure below, the corrosion resistant alloy pipe with only 1mm wall thickness (UNS 08825 nickel-base alloy welded pipe) lined oil well pipe by Tian...

Generally, the outer pipe of bimetallic metallurgical clad pipe is ordinary carbon steel pipe, the inner pipe is corrosion resistant alloy welded pipe. 1.        The carbon steel pipe is micro oxidized and restored to spongy pure iron. 2.        Iron removal by passivation, corrosion-resistant alloy pipes are alloyed 3.        Cladding after wearing pipe. 4.        Cladding through high temperature and high pressure, and form metallic bond. 5.        Make two kinds of metallic bonds anchor together, and the alloy elements  migrate with each other, and reach the state of solid solution.

Bimetallic clad pipe is the thin-wall corrosion-resistant alloy lined ordinary petroleum pipe. The corrosion resistant metal can be selected according to the corrosion environment of oil field. Normal materials are stainless steel 316L, super 13Cr, duplex stainless 2205, 22Cr, nickel-based alloy 825, etc. Bimetallic clad pipe combines the advantages of materials to show the advantages of high strength of base pipe and corrosion resistance of lining pipe which improves pipelines safety and extends pipeline life. The gathering and transportation cost of oil and gas exploitation will be significantly reduced by reducing the usage of corrosion resistant alloy pipe. In the aspect of clad pipe manufacturing method and production process, bimetallic clad pipe can be divided into two categories according to the combination form of base pipe and lining pipe: mechanical composite pipe and metallurgical clad pipe. However, mechanical composite pipe, the inner pipe is easy to peel off due...

Bimetallic metallurgical clad pipe is a kind of functional material in the field of anti-corrosion engineering for oil&gas pipeline. More than ten years’ application shows that the life of bimetallic metallurgical clad pipe is 4-6 times longer than that of conventional alloy pipe, and it has obvious economic benefits. Binder Singh et al. considered that the selection of transportation and mining pipelines for highly corrosive oil and gas fields is mainly based on corrosion rate: When the corrosion rate is lower than 5mm/a and corrosion monitoring measures are taken, carbon steel with corrosison inhibitor is supported, but the utilization rate of corrosion rate is required to be higher than 95%(in special cases, higher than 97%). Corrosion allowance and serviice life should be re-approved   in some cases where corrosion inhibition rate declines paticularly severe. When the corrosion rate is between 5mm/a and 10mm/a, use carbon steel with internal coating, and add corrosion...

With the continuous progress of the oil and gas industry, the demand of world energy is increasing, and the oil and gas resources that are easy to be extracted are becoming less and less. The exploration and development of oil and gas fields is gradually turning to the regions with more severe environmental conditions. In recent years, the oil and gas fields with high CO2, Cl-, H2S, high temperature, high pressure and element sulfur came out, the corrosion conditions led to serious corrosion in the casing pipe of oil and gas well, the gathering pipeline, especially under the influence of temperature and pressure, it is easy to cause pipeline perforation, cracking and other accidents, even fire and explosion endanger people’s lives and property. For these corrosive environments, traditional monometal and anti-corrosion technologies have been unable to meet the requirements of safe development. General steel pipe in the corrosive environment conditions prone to cracking and corro...

Shanghai Tianyang Steel Tube CO., Ltd. provides a brand new method for corrosion protection in petroleum and petrochemical industry. 1. Metallurgical Clad Oil Well Pipe 2. Metallurgical Clad Gathering Pipe 3. Metallurgical Clad Tube for Heat Exchanger(Special Solution for Refinery and Hydrogenation) The new technology name: Pressure Melting&Anchoring Technology for Bimetallic Metallurgical Clad Pipe&Tube Inner pipe material is welded corrosion resistant alloy steel pipe. The wall thickness is calculated according to the corrosion allowance. As the functional layer of bimetallic metallurgical clad pipe&tube, it makes much better resistance for corrosion. Base pipe material is seamless carbon/alloy steel pipe. The wall thickness is calculated according to the pressure. As the pressure-bearing layer of bimetallic metallurgical clad pipe&tube, it guarantees the safety under pressure.