Application of drill pipe thread for spiral steel pipe
In the production process, the thread of the drill pipe of the spiral submerged arc welded steel pipe is used to check the tightness of … Read more
permanent
Advantages and disadvantages of high frequency welding
The high-frequency erw steel pipe is different from the ordinary welded pipe welding process. The weld bead is melted from the base material of the … Read more
Difference between precision and hardness of hot-rolled and cold-drawn seamless steel tubes
Hot-rolled seamless steel pipe is divided into general steel pipe, low and medium pressure boiler seamless steel pipe, high pressure boiler seamless steel pipe, alloy … Read more
High-quality seamless pipe quality identification method
High-pressure seamless steel pipes for pseudo-deterioration equipment usually have the following characteristics: Pseudo-deteriorating fertilizer The pseudo-deteriorating fertilizer device is easy to fold with a high-pressure … Read more
Purpose of high-frequency straight seam electric resistance welded pipe
Straight seam steel pipes are mainly used in domestic water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction. For … Read more
3PE Anti-corrosion steel pipe knowledge for water conservancy projects
The base material of anti-corrosion steel pipe mainly includes straight seam steel pipe, spiral steel pipe and seamless steel pipe, and has a wide range … Read more
