stainless steel flanges

According to the news, as the key equipment of the solar thermal power generation system, the vacuum collector of the trough Fresnel generator and the molten salt pipeline of the tower generator need to maintain stable operation under high temperature conditions for a long time, which leads to the main Some domestic stainless steel pipe manufacturers, originally represented by the central enterprise  Xinxing Ductile Iron Pipes Co Ltd  has been highly recognized in this field, and gradually developed and produced domestic  stainless steel pipes  that can meet the needs of the CSP industry. Xinxing Ductile Iron Pipes Co Ltd has become the first central enterprise in China that possesses pipe performance in the CSP market. So far, its products such as TP321, S31608,  347H stainless steel pipes  and P91 boiler pipes have been successfully supplied to the first batch of CSP demonstration projects in Inner Mongolia, Qinghai, Gansu and other countries. Xin...

There is a method of inspection called nondestructive testing for  stainless steel pipes , so what is nondestructive testing, and what types of nondestructive testing are included? Ultrasonic testing (UT)  is performed using sound waves. The sound moves linearly in the metal, and the sound wave is reflected in the transition between the two materials. This phenomenon is used to detect irregularities. All materials that can be penetrated by ultrasound are suitable for this method: metal, aluminum, copper, stainless steel, etc. Ultrasonic testing Ultrasonic testing can detect defects in the depth of the material with different materials throughout the thickness range without destructive test. Ultrasound testing is also faster than radiography. Applications: Wall thickness measurement, crack detection, weld detection, corrosion / erosion detection. Magnetic testing (MT)  can identify defects directly below the surface. This can only be done in magnetizable grades...

Stainless Steel Heat Exchanger Coiled Tube A213/A269 TP304L, TP316/316L, TP310S, TP321H, 904L Heat coiled exchanger tube  is one of the  stainless steel tubings  which in an extensive range of austenitic stainless steels, duplex stainless steels, nickel alloys, titanium and zirconium, suitable for all types of heat exchangers, such as seawater coolers, condensers, evaporators, heaters and re-heaters. Features: Usually used for heating and cooling. Pure titanium tube has super strong corrosion proof ability and high intensity. The seamless titanium tube was tested by 2.0MPa pressure to make sure the tube is strong and not leakage . It has the character of strong corrosion resistance, good heat resistance, high conductivity, non-toxic, no-scale, no-blocking, no contamination of medium, and not easy to formed oxides on the surface. Size: 1/2” to 60” (DN15 ~DN1500), outer diameter up to 1500mm Rate: SCH5S to SCHXXS Standard: ASTM A312, A213, A268,A269, A249,...

The corrosion resistance of stainless steel pipes mainly depends on the surface passivation layer Stainless steel pipe, like  duplex pipe and fittings  has good corrosion resistance, high temperature oxidation resistance, good low temperature performance and excellent mechanical and processing performance. Therefore, it is widely used in chemical, petroleum, power, nuclear engineering, aerospace, marine, pharmaceutical, light industry, textile and other sectors. The corrosion resistance of stainless steel mainly depends on the surface passivation layer. If it is incomplete or defective, the stainless steel pipe will still be corroded. Principle of  duplex pipe ,  seamless pipe  pickling and passivation: The corrosion resistance of stainless steel is mainly because the surface is covered with a very thin (about 1nm) dense passivation layer, which is the basic barrier for stainless steel protection. The passivation of stainless steel has dynamic charac...

There is an oxide coating on the surface of the stainless steel duplex pipe . The layer is thin and dense, and it is not easy to fall off. Under normal conditions, the stainless steel slab will produce a layer of 0.2 to 0.3 mm in the heating furnace. The impurities in it can be removed. Otherwise it must be brought into the final product. Stainless steel slabs can not be cleaned with fire, it will cause the composition and crystal phase composition of the cleaning area, which will affect the corrosion resistance of the stainless steel pipe products. Mechanical cleaning is a common and effective method of stainless steel surface treatment. The general cleaning methods are oxide scale cleaning machine processing, water brust and shot blasting machine cleaning. Scale cleaning machine: scale cleaning machine is mainly composed of steel brush roller, driving device, high pressure water system, cooling water system and clamping device. Two steel wire rollers (...