News

  • Post time: 01-27-2021

    Butt weld: full extent by the weld metal into the base metal penetration butt welds and Incomplete penetration butt welds. How much can not meet the needs of diameter penetration butt weld force is small, and there are severe stress concentration. Penetration butt wold butt weld short. To facilit...Read more »

  • Post time: 01-27-2021

    The carbon steel pipe is generally divided Into two kinds: structural carbon steel pipe and toil carbon steel pipe. For the former one, it is mainly used in the manufacture of various mechanical parts and engineering components, Its carbon content is generally less than 0.70%. While for the latte...Read more »

  • Post time: 01-25-2021

    Welded Steel Pipe production process is a steel sheet,strip,and other various molding methods using the straight press roll helical direction curling into a desired crossectional shape, and then by means of heart, prssure, different methods of welding weld weld together to obtain steel.Therefore,...Read more »

  • Post time: 01-22-2021

    Shanghai Top Steel Co., Ltd. produces three kinds of welded steel pipe, including ERW steel pipe, SSAW steel pipe and LSAW steel pipe. Next, Shanghai Top Steel Pipe will share the difference among them There are two kinds of welding technology used in the production of ERW steel pipe, including i...Read more »

  • Post time: 01-20-2021

    Straight seam welded pipe quality control well can be safely carried out production operations, but also to protect the personal safety of the operator inevitable elements. The main application areas for large-span Wangjiagongcheng, building steel structure engineering, electricity and EHV transm...Read more »

  • Post time: 01-19-2021

    About the cleaning of oil casing bare pipe: The bare oil casing pipes are cleaned and arrive at the processing plant. Before the formal processing, the oil stain, lime soil, oxide scale rust and old coating on the inner and outer surfaces of the pipeline must be cleaned. The rust removal methods ...Read more »

  • Post time: 01-15-2021

    Steel pipe is the most basic dimensions of the various dimensions of the length of the steel refers to steel length, width, height, diameter, radius, diameter, outside diameter and wall thickness of equal length, Legal units of measurement is the length of steel meters (m), centimeters (cm), mill...Read more »

  • Post time: 01-14-2021

    Low carbon steel is also known as soft steel, the carbon content is from 0.10 to .30% and easily accepted by various processing such as forging, welding and cutting, commonly used in the manufacturing chain, rivets, bolts, shafts, etc.. Carbon content less than 0.25% carbon steel, because of its ...Read more »

  • Post time: 01-12-2021

    Overall quenching of steel pipe With the rapid development of China’s oil industry, the demand for high-grade steel is growing, and htgh-grade steel must be quenched, and therefore the study of the overall hardening of steel is very important. The latest developed a “dip in the jet qu...Read more »

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