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Introduction to plastic-coated steel pipe
Plastic-coated pipe, also known as plastic-coated steel pipe, steel-plastic composite pipe, and plastic-coated composite steel pipe, is based on steel pipe and is made of hot-dip plastic using PE (modified polyethylene) or EP (epoxy resin) as the main anti-corrosion raw material. A steel-plastic ...Read more -
Eight major defect characteristics and causes of seamless steel pipes
1. Folding of seamless steel pipes It is a state that exists on the outer or inner surface of seamless steel pipes in a straight or spiral shape, continuous or discontinuous. The main reason for the folding is that the quality of the steel pipe material is poor, there are folds in itself, or ther...Read more -
Rapid assessment and diagnosis of online weld quality of high-frequency straight seam welded steel pipes
The rapid assessment of online weld quality is based on the rapid detection of the above-mentioned processes. It can be quickly determined by comparing the process specifications of the relevant processes. Due to the differences in pipe specifications, forming processes, welding methods, technica...Read more -
Quality defects of steel pipe rolling and their prevention
The steel pipe rolling process is the main process to determine the wall thickness of seamless steel pipes. Its function is to reduce the wall thickness of perforated rough pipes. The main defects are uneven wall thickness of rough pipes, surface cracks, pits, scratches, rolling folds, punctures ...Read more -
How to choose a large-diameter 42crmo thick-walled seamless steel pipe
42CrMo thick-walled seamless steel pipe is a commonly used steel pipe material, widely used in petroleum, chemical, electric power, aviation, aerospace, and other industries. When choosing 42CrMo thick-walled seamless steel pipe, the following key factors need to be considered. First, consider th...Read more -
How to deal with the white rust on the surface of galvanized steel pipe after being exposed to rain
First: The cause of alkali (white rust, black spots) 1. The formation principle of white rust When galvanized steel pipes are tightly stacked and placed in humid air since there is no free-flowing air on the surface of the product, the surface of the zinc layer will undergo electrochemical corros...Read more -
3PE three-layer protective layer–Details of anti-corrosion steel pipe
3PE anti-corrosion steel pipe refers to a 3-layer structural polyolefin coating (MAPEC) outer anti-corrosion steel pipe, which is a commonly used anti-corrosion pipeline in China. At present, 3pe steel pipe is widely used and is an indispensable steel pipe in the pipeline industry. Do you know wh...Read more -
Several common anti-corrosion processes for spiral steel pipe anti-corrosion
Anti-corrosion spiral steel pipes play an important and different role in people’s daily lives. Anti-corrosion spiral steel pipes generally refer to the use of special technology to treat ordinary spiral steel pipes that have been treated with anti-corrosion, so that the spiral steel pipes ...Read more -
586 stainless steel pipe is an outstanding representative of high-quality stainless steel
586 stainless steel pipe, as a high-quality stainless steel material, has many unique characteristics and wide applications. In the steel industry, 586 stainless steel pipe is favored for its superior performance and diverse uses and has become one of the indispensable materials. First, the chara...Read more -
Precautions for wall thickness calculation of 15CrMo boiler oil cracking steel pipes
Precautions for wall thickness calculation of 15CrMo boiler oil cracking steel pipes. The method for calculating wall thickness in the production of 15CrMo boiler oil cracking steel pipes is: first, calculate the roller speed of each pass according to the given main and auxiliary motor speeds (Fo...Read more -
Details about the DN800 steel pipe inspection specification
Steel pipes are important materials commonly used in construction, engineering, and manufacturing industries, and for large-diameter steel pipes, such as DN800 steel pipes, their quality and safety are even more important. Therefore, strict inspection specifications are essential to ensure the qu...Read more -
Spiral steel pipes can be divided into several categories according to their uses
Spiral steel pipes can be roughly classified into four categories according to their uses: spiral steel pipes for drainage, spiral steel pipes for dredging, spiral steel pipes for piling, and spiral steel pipes for oil and gas. Spiral steel pipes for drainage Material of spiral steel pipes for dr...Read more
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