• Post time: Jun-18-2019

    1. The shoddy thick-walled seamless steel pipe is prone to folding. Folding is a variety of fold lines formed on the surface of thick-walled seamless steel tubes, which often extend throughout the longitudinal direction of the product. The reason for the folding is that the inferior manufacturer ...Li plis »

  • Post time: Jun-06-2019

    What types of oil casings are there? Different types of casing used in oil extraction: Surface oil casing protects the well from contamination by shallow water and shallow gas, supports wellhead equipment and maintains the weight of the other layers of the casing. The technical oil casing separat...Li plis »

  • Post time: May-31-2019

    What is the use of oil casings? Oil casing is the lifeline for maintaining oil well operations. Due to different geological conditions, the state of the downhole is complicated, and the combined action of tension, compression, bending and torsion stress acts on the pipe body, which puts high requ...Li plis »

  • Post time: May-22-2019

    The difference between the so-called stainless steel seamless steel pipe and the carbon steel seamless steel pipe mainly refers to the difference in design rules between stainless steel and carbon steel, that is to say, the design rules of the two steels are not universal. The differences between...Li plis »

  • Post time: May-16-2019

    The seamless steel tube is a long strip of steel with a hollow section and no seams around it. Everyone can understand how to keep the seamless steel pipe, we will introduce some invalid methods. Choose the right venue and storeroom: 1. The site or warehouse where the steel is kept should be sele...Li plis »

  • Post time: Apr-28-2019

    The advantages of stainless steel stamping are as follows: 1, light weight. Significant advantages of stainless steel stamping elbows The density of the punching elbow is 0.89-0.91g/cm, which is only one tenth of that of the steel pipe. And because of its light weight, it can greatly reduce the t...Li plis »

  • Post time: Apr-22-2019

    From April 12th to 14th, the “15th Steel Industry Development Strategy and Steel Products Production and Demand Seminar” was held at the Shanghai Pudong International Conference Center. More than 1,000 representatives from more than 600 units including national ministries and commissions, industr...Li plis »

  • Post time: Apr-09-2019

    “In the face of future development, the steel industry should adhere to the supply-side structural reform as the main line and accelerate the development of high-quality. During the ’14th Five-Year’ period, at least ‘five customs’ and ‘six’ lowerings must...Li plis »

  • Post time: Mar-15-2019

    After three years of unremitting supply-side structural reform, the steel industry has already completed the goal of resolving excess capacity during the 13th Five-Year Plan period, laying a solid foundation for the sustained and healthy development of China’s steel industry. Cao Zhiqiang, ...Li plis »

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