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Precision bright tube
Precision steel pipe is a high-precision steel pipe material that has been processed by cold drawing or hot rolling. Because the inner and outer walls of the precision bright pipe have no oxide layer, withstand high pressure without leakage, high precision and high finish, cold bending without de...Read more -
Galvanized strip steel pipe (welded pipe – square pipe)
Galvanized strip steel pipe includes galvanized strip welded pipe and galvanized strip square pipe, which are often used in engineering construction, machinery manufacturing and other industries. Galvanized strip steel pipes made of normal high-quality carbon-chromium steel will not have such a s...Read more -
The working principle of stainless steel seamless tube annealing furnace
For the manufacture of stainless steel seamless pipes, the corresponding annealing treatment is carried out after each cold drawing. The purpose of annealing: reduce hardness and improve machinability. Eliminate residual stress, stabilize dimensions, reduce deformation and cracking tendency. Refi...Read more -
Why does stainless steel seamless pipe have good bearing capacity？
Stainless steel seamless pipes have good bearing performance and can withstand large impact forces. Currently widely used in frameworks. When the vehicle is turning at high speed or braking suddenly, the high-strength steel pipe can easily absorb the strong impact. The impact force ensures the ri...Read more -
Seamless Steel Pipe Manufacturing and Purchasing Habits
Many people affirm the use of seamless pipes, which are often used to transport gases and chemical liquids. But many people don’t know how it is made. And what should we pay attention to when the factory purchases seamless steel pipes. Seamless piping starts with a solid cylindrical chunk o...Read more -
LSAW pipe
Generally speaking, LSAW pipe is made of steel plate through different forming processes, such as double-sided submerged arc welding and expanding after welding. The forming methods of LSAW pipe include uo (UOE), Rb (RBE), JCO (JCOE), etc. The forming process of UOE longitudinal submerged arc wel...Read more -
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