News
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National thread price
On October 21, the price of building materials nationwide fell sharply, and futures fell sharply. The demand data was far lower than last year. Yesterday, the national building materials transaction volume was only 120,000 tons, and the market sentiment was pessimistic. Even if the inventory is l...Read more -
Iron and steel hot spot
1.On October 21, the night trading of black series increased and decreased compared with the closing price of the previous trading day. Among them, thread fell 0.2%, hot coil rose 1.63%, coking coal fell 0.23%, coke rose 3.14%, and iron ore rose 3.46%. 2.Real estate development investment data fo...Read more -
What are the differences between straight seam steel pipe and seamless steel pipe?
What we often see in life should be seamless steel pipes, straight seam steel pipes and spiral welded pipes. The following editor briefly takes you to understand how to distinguish between straight seam steel pipe and seamless steel pipe, and see what is the difference between the two! 1. ...Read more -
Causes of corrosion of hot-rolled seamless pipes
Hot-rolled seamless pipe is an ultra-thin, strong, detailed and stable chromium-rich oxide film (protective film) formed on its surface to prevent oxygen atoms from re-wetting and re-oxidizing, thereby obtaining professional anti-corrosion ability. Once the plastic film is continuously damaged du...Read more -
What kind of billet is more suitable for production of hot-rolled and cold-drawn seamless steel pipe
Tube billet is the billet for the production of seamless steel pipes, and the most widely used in my country are round continuous casting billets and rolling billets. According to the production method of tube billet, it can be divided into: ingot, continuous cast billet, rolled billet, segment b...Read more -
How to reduce the loss of seamless steel pipes?
The application range of seamless steel pipes(astm a106 steel pipes) is becoming wider and wider. In the whole process of applying seamless steel pipes, how should people keep the level of seamless steel pipes unchanged? Improve the gloss and overall wear resistance of the seamless steel p...Read more