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    Stainless steel decorative pipe

    不锈钢装饰管
    Also known as stainless steel welded steel pipe, referred to as welded pipe, commonly used steel or steel strip after the unit and the mold curl forming of welded steel pipe. Welded steel pipe has the advantages of simple production process, high production efficiency, many varieties and specifications, and less equipment, but its general strength is lower than that of seamless steel pipe.
    Since the 1930s, with the rapid development of high-quality strip rolling production and the progress of welding and inspection technology, the quality of weld seams has been continuously improved, and the variety and specification of welded steel tubes have been increasing, and seamless steel tubes have been replaced in more and more fields, especially in heat exchangers, decorative pipes, medium and low pressure fluid pipes, etc. 。
    There are many kinds of stainless steel pipes, but the main uses are as follows:
    Classification of stainless steel pipes
    1. Classified by production method:
    (1) Seamless pipes - cold drawn pipes, extruded pipes, cold rolled pipes.
    (2) Welded pipe:
    (a) According to process classification - gas shielded welded pipe, arc welded pipe, resistance welded pipe (high frequency, low frequency).
    (b) According to the weld seam, the straight seam welded pipe and the spiral welded pipe are separated.
    2. Classify by section shape: (1) circular steel pipe; (2) rectangular pipe.
    3. Classification by Wall Thickness: Thin-walled Steel Tube and Thick-walled Steel Tube
    4. Classified by use: (1) Civil pipes are divided into round pipes, rectangular pipes and flower pipes, which are generally used in decoration, architecture, structure, etc.
    (2) Industrial pipes: pipes for industrial piping, pipes for general piping (drinking pipes), mechanical structure/fluid delivery pipes, heat exchange pipes for boilers, food hygiene pipes, etc. Generally used in various fields of industry, such as petrochemical industry, papermaking, nuclear energy, food, beverage, medicine and other industries, high requirements for fluid media pipelines.
    SEAMLESS STEEL TUBES
    Stainless steel seamless pipe is a kind of long steel with hollow section and no joint around it.
    1. Manufacturing technology and process of seamless steel pipe:
    Smelting > Ingot > Rolling > Sawing > Peeling > Perforation > Annealing > Pickling > Ashing > Cold Drawing > Cutting > Pickling > Storage
    2. The characteristics of seamless steel pipe:
    From the above process, we can see that: first, the thicker the wall thickness of the product, the more economical and practical it will be, the thinner the wall thickness, the higher the processing cost will be; second, the process of the product determines its limitations, generally the seamless steel tube has low accuracy: uneven wall thickness, low brightness inside and outside the tube. Thirdly, its detection and shaping must be dealt with offline. Therefore, it embodies its superiority in high pressure, high strength and mechanical structure materials.
    3. Welded Steel Pipe
    Welded steel pipe, referred to as welded pipe, is a stainless steel pipe made of steel plate or strip after being rolled and formed by the machine and die.
    1. Steel plate > strip > forming > dissolution > induction brightening heat treatment > internal and external bead treatment > shaping > sizing > eddy current detection > laser diameter measurement > pickling > storage
    2. Characteristics of welded steel pipe:
    From the above process, we can see that: First, the product is continuous on-line production, the thicker the wall thickness, the greater the investment of the unit and the dissolution equipment, the less economical and practical it is. The thinner the wall thickness, the lower the input-output ratio; secondly, the process of the product determines its advantages and disadvantages. Generally, the welded steel pipe has high accuracy, uniform wall thickness, high surface brightness inside and outside stainless steel pipe fittings (the surface brightness of steel pipe determined by the surface grade of steel plate), and can be arbitrarily ruled. Therefore, it embodies its economy and beauty in the application of high precision, medium and low pressure fluids.
    There are chloride ions in the environment. Chloride ions are ubiquitous, such as salt, sweat, sea water, sea breeze, soil and so on. Stainless steel corrodes rapidly in the presence of chloride ions, even more than ordinary low carbon steel. Therefore, there are requirements for the use of stainless steel environment, and often need to wipe, remove dust, keep clean and dry.
    316 and 317 stainless steels (317 stainless steel properties see below) are molybdenum-containing stainless steels. The molybdenum content of 317 stainless steel is slightly higher than that of 316 stainless steel. Because of molybdenum in steel, the overall performance of this steel is better than that of 310 and 304 stainless steel. At high temperature, 316 stainless steel has a wide range of uses when the concentration of sulphuric acid is lower than 15% and higher than 85%. 316 stainless steel also has good chloride corrosion performance, so it is usually used in marine environment. With the development of social economy, the application of stainless steel pipe has been more and more popular. It is bound to bring about new changes in all fields.

    联系金华胜 / contact us

    联系美亿冷暖Zhenjiang Jinhuasheng Stainless Steel Co., Ltd.
    Consultation hotline: 0511-80857836
    Mobile phone number: 18852803956
    Consultation Q: 3131507619
    Company Fax: 0511-80857837
    Address: No. 50 Zhenju Road, Zhenjiang City, Jiangsu Province
    Wuxi Branch
    Consultation hotline: 0510-66927617
    Mobile phone number: 13182066718
    Company Fax: 0510-66927618
    Company Address: No. C5-330, Phase II, Dongfang Steel City, Xishan District, Wuxi City


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