Steel Knowledge

  • How to remove oxide scale on large diameter square pipe?

    How to remove oxide scale on large diameter square pipe?

    After the square tube is heated, a layer of black oxide skin will appear, which will affect the appearance. Next, we will explain in detail how to remove the oxide skin on the large-diameter square tube. Solvent and emulsion are used t...
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  • Do you know the factors that affect the outer diameter accuracy of thick walled rectangular tubes?

    Do you know the factors that affect the outer diameter accuracy of thick walled rectangular tubes?

    The outer diameter accuracy of thick walled square rectangular pipe is determined by human, and the result depends on the customer. It depends on the customer's requirements for the outer diameter of seamless pipe, the operation and accuracy of steel pipe sizing equipmen...
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  • Do you want to make your products lighter and stronger than before?

    Do you want to make your products lighter and stronger than before?

    By using thinner and stronger structural and cold forming steels like high-strength, advanced high-strength and ultra-high-strength steels, you can save on production costs thanks to easy bendability, cold-forming properties and surface treatment. Additional savings in w...
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  • Method of removing oil on the surface of square tube

    Method of removing oil on the surface of square tube

    It is inevitable that the surface of the rectangular tube will be coated with oil, which will affect the quality of rust removal and phosphating. Next, we will explain the method of oil removal on the surface of the rectangular tube below. ...
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  • Surface defect detection method of square pipe

    Surface defect detection method of square pipe

    The surface defects of square tubes will greatly reduce the appearance and quality of products. How to detect the surface defects of square tubes? Next, we will explain the surface defect detection method of the lower square tube in detail ...
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  • How to straighten galvanized square pipe?

    How to straighten galvanized square pipe?

    Galvanized square pipe has a good performance, and the demand for galvanized square pipe is very large. How to straighten the galvanized square pipe? Next, let's explain it in detail.   The zigzag of galvanized square pipe is caused by imp...
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  • Essential difference between welded square pipe and seamless square pipe

    Essential difference between welded square pipe and seamless square pipe

    The production process of square tubes is simple, the production efficiency is high, the varieties and specifications are various, and the materials are different. Next, we will explain the essential differences between welded square tubes and seamless square tubes in detail. 1. Welded square pip...
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