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How to deal with the welding seam of the spiral steel pipe during the welding process?
When the spiral steel pipe is welded, it is easy to form a coarse columnar crystal structure with strong directionality, which is conducive to the segregation of harmful impurities and elements, promotes the formation of intercrystalline liquid film, and improves the sensitivity of hot cracks. If...Read more -
The difference between stainless steel pipe and stainless steel pipe fittings
1. Different production methods. Non-steel products have no fixed style and specifications, and are generally custom-made stainless steel pipes to cater to customers’ stainless steel products. Therefore, the production method is not fixed, and everything is subject to the customer’s p...Read more -
The seamless steel pipe for automobile frame (4130 steel pipe) is a chrome molybdenum alloy steel pipe
Seamless steel pipe (4130 steel pipe) chrome molybdenum alloy steel pipe for automobile roll cage 4130 domestic grade 30CrMo is an alloy steel containing chromium and molybdenum. Its tensile strength is generally above 750MPa. The ones seen on the market are mainly bars and thick plates. Thin-wal...Read more -
Welding requirements for welded steel pipes, anti-corrosion requirements for steel pipes
The pipe is made of welded steel pipe, and the basic form and size of the welded joint shall comply with the provisions of GB/T 985.1-2008, GB/T 985.2-2008, and GB/T 985.3-2008; the surface of the weld shall be uniform, and there shall be no cracks on the surface. , slag inclusions, needle-shaped...Read more -
Seamless square steel pipe
Seamless square steel pipe is a long strip of steel with a hollow section and no joints around it. It is made of strip steel that has been processed and rolled. Seamless steel pipes have hollow sections and are widely used as pipelines for transporting fluids, such as pipelines for transporting o...Read more -
310S stainless steel pipe plays an important role in engineering construction
The use of stainless steel pipes is now more and more extensive. Because of its good corrosion resistance, it plays a vital role in engineering construction. In the process of production, it is necessary to perform solution treatment on stainless steel pipes. The main purpose is to obtain a certa...Read more -
Spiral steel pipe for drainage
Drainage spiral steel pipe is to discharge excess water to other locations, sometimes also called drainage spiral steel pipe or spiral steel pipe for diversion pipes. The drainage spiral steel pipe is mostly large-diameter spiral steel pipe, because the throughput per unit time is large, which ca...Read more -
Pipe Q235B for sewage pipeline
Judging from the surface of the Q235B spiral steel pipe for sewage pipelines, whether the manufacturing process of the product is excellent or not, generally speaking, a good spiral steel pipe company must be careful during production, and there will be no friction defects. On the other hand, it ...Read more -
Product structure of stainless steel seamless pipe
For the product structure of stainless steel seamless pipes, many people have little knowledge, which is unfavorable for the subsequent sales of stainless steel seamless pipes, so what about the product structure of stainless steel seamless pipes? From the perspective of the product structure of ...Read more -
What is the production process of cold drawn seamless pipe
Cold-rolled and cold-drawn seamless pipes are two kinds of seamless pipe production processes, and cold-rolled, cold-drawn, cold-drawn, and cold-rolled mixed production can also be used. The cold drawing process has the advantages of simple equipment, less investment, and easy operation and maint...Read more -
What is the difference between seamless steel pipe and galvanized steel pipe
Seamless refers to the production process of steel pipes. It is introduced by the manufacturer of lined stainless steel composite pipes. The steel pipes are divided into welded and seamless. For galvanized and seamless steel pipes, it is impossible to say that there is any difference in the mater...Read more -
Derusting Technology of Alloy Steel Pipe
First of all, for the construction process of epoxy, ethylene, phenolic and other anti-corrosion coatings commonly used in alloy pipes, it is generally required that the surface of the alloy pipe reach a level close to white. Practice has proved that using this rust removal grade can remove almos...Read more