Introducing the standards for architectural columns used as pillars in medium to large-scale buildings!
Large-sized square steel pipes used for construction are referred to as "columns." Since our company successfully mass-produced large-diameter square steel pipes in 1978, they have become the mainstream material for steel frame columns. They are used as columns in medium to large-scale buildings and are categorized into several types based on standards and manufacturing methods. General structural square steel pipes conforming to JIS standards, which are manufactured through roll forming, include STKR400 and STKR490. STKR is said to be an abbreviation for "S = Steel, T = tube, K = groove, R = Rectangular," with the numbers indicating the minimum tensile strength. *For more detailed information about columns, please refer to the PDF document.
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You can view the detailed content of the column in the PDF document.
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The detailed content of the column can be viewed in the PDF document.
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Nakajima Steel Pipe Co., Ltd. is a company primarily engaged in the manufacturing of structural square steel pipes, as well as the design, production, and construction of steel structures. We have consistently provided high-performance building materials in the form of steel pipes and excellent advanced technologies. Focusing on the manufacturing of hot-formed steel pipes, we are expanding our presence in the global market, including Europe. Please look forward to the passionate steel pipe manufacturing technology of Nakajima Steel Pipe.