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Cold drawn seamless steel pipe
Cold-drawn seamless steel pipe annealing: refers to the heat treatment process of heating the metal material to an appropriate temperature, maintaining it for a certain period of time, and then slowly cooling it. Commonly used annealing processes include recrystallization annealing, stress relief...Read more -
Steel mills rise, steel prices are on the strong side
On June 29, the domestic steel market mainly rose, and the ex-factory price of Tangshan Qian’an billet rose 30 to 4,040 yuan/ton. In terms of transactions, speculative demand was released, and futures and spot traders were active in picking up goods. On the 29th, the closing price of the ma...Read more -
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