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  • Heat treatment of steel

    The heat treatment of steel generally includes quenching, tempering and annealing. The heat treatment of steel affects the properties of metal materials. 1、Quenching: Quenching is to heat the steel to 800-900 degrees, keep it for a certain time, and then rapidly cool it in water or oil, which ca...
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  • Classification of section steel

    In addition to steel pipes, there are many metal materials used in penstock engineering, such as various section steels, steel plates and reinforcing bars. For example, section steel will be used in the design of penstock pipe support. Round steel: round steel is used to make suspenders, rings an...
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  • Can the steel market hold up?

    The spot market in the steel market is dominated by weak operation, general transaction, low speculative demand and low market sentiment. In terms of fundamentals, three aspects are clear. First, the demand is difficult to improve, especially in the heating season in the north, the demand is obvi...
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  • Difference between seamless pipe for conveying fluid and seamless pipe for structure

    Difference between seamless pipe for conveying fluid and seamless pipe for structure

    The difference between GB / T8162 seamless pipe and GB / t8163 seamless pipe for structure: GB / T8162 seamless pipe for structure is applicable to seamless pipe for general structure and mechanical structure, and GB / t8163 seamless pipe for fluid conveying is applicable to general seamless pip...
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  • Steel classification – petroleum casing

    Steel classification – petroleum casing

    Oil casing is a seamless steel pipe used to support the well wall of oil and gas wells to ensure the normal operation of the whole oil well during the drilling process and after completion. Several layers of casing shall be used for each well according to different drilling depth and geological c...
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  • Influence of coal, iron ore and other raw materials on steel

    Influence of coal, iron ore and other raw materials on steel

      There have been a lot of recent positive news, including the intensive introduction of a package of economic stabilization measures by multiple departments, and the continuous improvement of the epidemic situation in various regions.Carbon Seamless Steel Pipe.On May 31, the State Council ...
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  • Steel industry under slow economic growth

    Steel industry under slow economic growth

    面对国际形势的风云突变,粮食、能源等有关人类生存的基本物资开始水高船涨,进而面临紧缺。钢铁同样也是人类高度发展的关键原材料,它的发展会受到哪些影响呢? In the face of sudden changes in the international situation, food, energy and other basic materials related to human survival began to rise, and ...
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  • The epidemic situation and the international situation affect the steel market

      The intermittent mutated virus tried to disrupt the company’s development and business plan, but it failed. We are at a loss for the first time, and there will be no second panic. Seamless steel pipe and steel market are still loading and departure in an orderly manner. But we pay m...
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  • What is Alloy Steel Pipe(P11 Alloy Steel Tube)?

    What is Alloy Steel Pipe(P11 Alloy Steel Tube)?

    Alloy pipe is defined by the steel pipe according to the production materials (that is the material), as the name suggests, it is a pipe made of alloy; while the seamless pipe is defined by the steel pipe according to the production process (seamless), which is different from the seamless pipe....
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  • Will it affect the trend of steel during the Beijing Winter Olympics?

    The current situation of my country’s steel industry is bleak, and the continuous downward trend has burned out the last ray of hope for steel companies. Although many companies have been struggling to maintain it again and again, the demand in the steel industry has never shown signs of ...
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  • Basic knowledge of metal materials (1)

    Basic knowledge of metal materials (1)

    Pig iron and steel are collectively referred to as ferrous metals. Iron is its main component and also contains a certain amount of carbon and other trace elements. Alloys with carbon content less than 2.11% (mass) are called steel, and alloys with carbon content greater...
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  • Knowledge of steel (seamless steel pipe and plate)

    Knowledge of steel (seamless steel pipe and plate)

    1.Seamless steel pipe: seamless pipe is a kind of long steel with hollow section and no seam around. Steel pipe has hollow section, which is widely used to transport fluid, such as oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, seamless pipe ...
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