(1) Pockmarking on the surface: Pockmarking is an irregular uneven defect on the steel surface caused by severe wear of the rolling groove. Because manufacturers of fake and inferior square steel tubing pursue profits, groove rolling often exceeds the standard;(2) Cracks are easy to occur: the reaso
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The All-China Federation of Industry and Commerce released the "2023 China's Top 500 Private Manufacturing Enterprises List" in Jinan on September 12. We are pleased to see that Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. ranked 338th with a score of 25,750.71 millio
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There are four main common internal defects in rectangular square tubes: first, slag inclusion, which is an impurity phase or foreign particles surrounded by a solid metal matrix; second, decarburization, which is the surface layer of steel and iron-based alloy materials or parts. The phenomenon of
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The quality and performance of square tubeshave a lot to do with the content of specific elements in the raw steel. Let's introduce ten elements that have a greater impact:(1) Aluminum: It can refine the grain structure of steel and inhibit the aging of low-carbon steel. Improving the toug
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TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD
