What is the cause of cracking of duplex steel stainless steel pipe? There are experts in this area to crack the seamless steel pipe inspection, and the seamless steel pipe water quality analysis.

Conclusion: The fracture is intergranular corrosion fracture. Under the condition of 60 ~ 120℃, the water chloride ion and the total hardness of seamless steel pipe are more than the standard, which is an important reason for the intergranular corrosion rupture of duplex stainless steel pipe in the ground stress.

Metal cracking should be caused by environmental erosion. There must be two existence criteria to produce a split. The presence of ground stresses and corrosive substances.

Intergranular corrosion is one of the key ineffective ways of stainless steel plate, and typical intergranular corrosion cracks show a network structure. Research on intergranular corrosion behavior of stainless steel under different corrosive substances is one of the core contents of stainless steel corrosion exploration. This paper shows a process of stress corrosion cracking of stainless steel plate and its harm to the system, expounds the reasons of its formation, and finds effective ways to prevent the occurrence of stress corrosion cracking.

Stainless steel water supply pipe interface

The key interface mode of stainless steel water supply pipe can be divided into four types, which are clamping type connection, ring expansion type connection, welding connection and self-locking type connection. The card type connection is divided into single card type and double card type. The double card type connection is the reliable interface mode. The clamping type connection adopts the action of axial pulling external force to fasten the pipe on the pipe, and then waterproof according to the sealing ring, so as to achieve the actual effect of connection. This method is very convenient and fast in practice, and has good airtightness, but it can not be disassembled and assembled.

When the ring is expanded, it is fastened on the pipeline by the action of axial pulling force, and then the tape is used to seal the ring. This kind of method can be disassembled and assembled, but the tightness is relatively general. To put it plainly, the welding joint adopts the thermal melting process to dissolve the two connectors to achieve the actual effect of connection. This method has high connection strength, but it is very easy to rust the welding, and the service life will be relatively short.

Thick wall duplex steel stainless steel pipe surface processing production process

Thick wall duplex steel stainless steel pipe surface processing production process is simple. However, in the specific processing, phosphating production and processing has a very large difficulty factor. The raw materials of thick wall duplex steel stainless steel tube can not be removed by the conventional method of derusting thick wall duplex steel stainless steel tube.

Stainless steel plate clamping pipe fittings, special clamping tools, marking device and other double-phase steel stainless steel pipe connection, easy to use, convenient assembly, convenient, simple construction technology, short construction period, low installation cost, stable construction quality, strong tensile resistance, excellent tightness, no leakage, construction site cleaning, safety, The labor efficiency of the operators is small, and the consumption of electric energy and stainless steel plate network resources are less.

Thick wall duplex steel stainless steel pipe has corrosion resistance, heat resistance, wear resistance, compressive strength, moisture resistance, and has a limit of high precision and good internal and external surface roughness, if it is soft thick wall duplex steel stainless steel pipe, and has good magnetic shielding material. Because of its special area, stainless steel pipes are widely used in industry, light industry, daily necessities and architectural decoration design.