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Non-destructive testing of steel pipe fittings
The relevant provisions in the national standard for steel pipe fittings “GB/T13401-2017 Technical Specifications for Steel Butt Welded Pipe Fittings”: 7.3 Non-destructive testing 7.3.1 Tees, crosses, press-formed reducers, and pipe caps formed by the direct cutting of bars of all mat...Read more -
The meaning and classification of stainless steel pipe corrosion
In a corrosive environment, the damage caused by chemical or electrochemical interactions between metal and surrounding media is called corrosion. In a corrosive environment, when stainless steel is improperly selected, corrosion will also occur. There are many classification methods for corrosio...Read more -
Production process of carbon steel welded pipe
Carbon steel welded pipes are mainly divided into three processes: electric resistance welding (ERW), spiral submerged arc welding (SSAW) and straight seam submerged arc welding (LSAW). The carbon steel welded pipes produced by these three processes have their own positioning in the application f...Read more -
Advantages and disadvantages of thermal expansion carbon steel pipes
At present, steel pipes are widely used and have many types. Thermal expansion carbon steel pipe is one of them. It has many advantages, but of course it is not without any disadvantages. The following is a detailed explanation of the advantages and disadvantages of hot-expanded steel pipes by ca...Read more -
What details should be paid attention to when using directly buried insulation pipes
Direct buried insulation pipe has always been used as a special material and has been demanded by more construction sites, but it is precisely because of its particularity that there are many places that need everyone’s attention in the process of use. In the entire laying process of the di...Read more -
What are the precautions for the construction of polyurethane direct buried pipes?
With the development of the pipeline industry, new materials are gradually listed in the market. As an efficient product in the thermal insulation industry, the polyurethane direct-buried thermal insulation pipe has excellent thermal insulation characteristics and efficient work efficiency. It is...Read more -
Common problems and solutions in the construction of directly buried thermal insulation pipes
The direct buried insulation pipe is foamed by chemical reaction of high-function polyether polyol composite material and polymethyl polyphenyl polyisocyanate as raw materials. Directly buried thermal insulation pipes are used for thermal insulation and cold insulation projects of various indoor ...Read more -
Suggestions on the peeling method of 3PE anti-corrosion coating
1.Improvement of mechanical peeling method of 3PE anti-corrosion coating ① Find or develop better heating equipment to replace the gas cutting torch. The heating equipment should be able to ensure that the spray flame area is large enough to heat the entire coating part to be peeled off at one ti...Read more -
About 3PE anti-corrosion steel pipe coating peeling method
Mechanical peeling method of 3PE anti-corrosion coating At present, in the process of gas pipeline maintenance, the peeling method of 3PE anti-corrosion coating is proposed based on the analysis of the structure and coating process of 3PE anti-corrosion coating [3-4]. The basic idea of peeling ...Read more -
Application of Polyurea Anticorrosion Coating on Pipeline
From the perspective of the coating temperature range, epoxy powder coating and polyurea anti-corrosion coating can be used normally in soil corrosion environments ranging from -30 °C or -25 °C to 100 °C, while the three-layer structure polyethylene The maximum service temperature of the anti-cor...Read more -
Developed high temperature resistant 3pe anticorrosion
With the decline of energy and resource reserves, the pipeline fleet transports more and more gas, asphalt and other low-quality petroleum products, and the construction of marine pipelines is also developing continuously. Development has been uninterrupted. The following is an introduction to so...Read more -
Supply and demand imbalance in Europe’s HRC market stalls
Trading in the European HRC market has been weak recently, and HRC prices are expected to fall further amid sluggish demand. At present, the feasible level of HRC in the European market is around 750-780 euros / ton EXW, but buyers’ purchasing interest is sluggish, and no large-scale transa...Read more