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盛仕达钢铁股份有限公司

Product News

  • What should be done at the end of cooling of large-diameter steel pipes

    What should be done at the end of cooling of large-diameter steel pipes

    (1) When the cooling is over, that is, when the temperature of the surface layer and the core part are all the same, the elastic deformation of the surface layer and the core part also disappears and return to the original state. Although instantaneous thermal stress is generated during the cooli...
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  • What requirements should be met for weld repair of pressure steel pipes

    What requirements should be met for weld repair of pressure steel pipes

    (1) Before repair, the causes of steel pipe defects should be analyzed and corresponding repair measures should be proposed. (2) When reworked steel pipes require repair welding, qualified welding processes should be used and welded by qualified welders. (3) When the number of repairs for the sam...
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  • What is a stainless steel profile

    What is a stainless steel profile

    Stainless steel profiles are stainless steel materials with different cross-sectional shapes obtained by hot melting and extruding stainless steel rods. The production process of stainless steel profiles mainly includes three processes: casting, extrusion, and coloring. Among them, coloring mainl...
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  • Embroidery removal technology for submerged arc steel pipes

    Embroidery removal technology for submerged arc steel pipes

    Introduction to the embroidery removal technology of submerged arc steel pipes: During the anti-corrosion construction process of oil and gas pipelines, the surface treatment of large-diameter submerged arc steel pipes is a key factor that determines the anti-corrosion service life of the pipelin...
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  • What is the difference between high-pressure boiler steel tubes and low- and medium-pressure boiler steel tubes

    What is the difference between high-pressure boiler steel tubes and low- and medium-pressure boiler steel tubes

    The differences between high-pressure boiler steel tubes and low- and medium-pressure boiler steel tubes are as follows: 1. Different implementation standards High-pressure boiler steel tube implementation standard: GB/T5310-2018 Low and medium pressure boiler steel tube implementation standards:...
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  • What is the main function of valves

    What is the main function of valves

    Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveyed medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. V...
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  • Non-destructive testing of steel pipe fittings

    Non-destructive testing of steel pipe fittings

    The relevant provisions in the national standard for steel pipe fittings “GB/T13401-2017 Technical Specifications for Steel Butt Welded Pipe Fittings”: 7.3 Non-destructive testing 7.3.1 Tees, crosses, press-formed reducers, and pipe caps formed by the direct cutting of bars of all mat...
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  • The meaning and classification of stainless steel pipe corrosion

    The meaning and classification of stainless steel pipe corrosion

    In a corrosive environment, the damage caused by chemical or electrochemical interactions between metal and surrounding media is called corrosion. In a corrosive environment, when stainless steel is improperly selected, corrosion will also occur. There are many classification methods for corrosio...
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  • Production process of carbon steel welded pipe

    Production process of carbon steel welded pipe

    Carbon steel welded pipes are mainly divided into three processes: electric resistance welding (ERW), spiral submerged arc welding (SSAW) and straight seam submerged arc welding (LSAW). The carbon steel welded pipes produced by these three processes have their own positioning in the application f...
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  • Advantages and disadvantages of thermal expansion carbon steel pipes

    Advantages and disadvantages of thermal expansion carbon steel pipes

    At present, steel pipes are widely used and have many types. Thermal expansion carbon steel pipe is one of them. It has many advantages, but of course it is not without any disadvantages. The following is a detailed explanation of the advantages and disadvantages of hot-expanded steel pipes by ca...
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  • What details should be paid attention to when using directly buried insulation pipes

    What details should be paid attention to when using directly buried insulation pipes

    Direct buried insulation pipe has always been used as a special material and has been demanded by more construction sites, but it is precisely because of its particularity that there are many places that need everyone’s attention in the process of use. In the entire laying process of the di...
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  • What are the precautions for the construction of polyurethane direct buried pipes?

    What are the precautions for the construction of polyurethane direct buried pipes?

    With the development of the pipeline industry, new materials are gradually listed in the market. As an efficient product in the thermal insulation industry, the polyurethane direct-buried thermal insulation pipe has excellent thermal insulation characteristics and efficient work efficiency. It is...
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