Square steel pipes made of architectural structural stainless steel that allow for a variety of surface finishes and can also serve as finishing materials.
Stainless steel materials for construction structures were standardized as "JIS G 4321" in 2000, and in 2002, due to the revision of the Building Standards Act, they became usable as construction structural members, similar to ordinary steel (iron). The types of steel that can be used as construction structural members are three: SUS304A, SUS316A, and SUS304N2A. Additionally, there are H-shaped steel, equal leg angle steel, channel steel, round steel, circular steel pipes, and square steel pipes. The square steel pipes are manufactured by cold forming, so their type designation is "SUS304A-C." 【Features】 ■ Excellent corrosion resistance, improving building lifespan and simplifying maintenance ■ Various surface finishes are possible, allowing them to serve as finishing materials ■ Minimal reduction in strength due to heat, while exhibiting high toughness at low temperatures ■ Large plastic deformation capacity, rich in toughness, enhancing the seismic resistance of buildings *For more details, please refer to the PDF materials or feel free to contact us.
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【Mechanical Properties】 ■ Stainless steel material SUS304A for building structures has greater elongation and tensile strength compared to ordinary steel, making it suitable for structural members where ductility is required. ■ Although its yield strength is comparable to that of ordinary steel, it possesses significantly higher tensile strength (the yield point does not appear, and the stress-strain relationship is roundhouse-shaped, with a yield strength value of 0.1% offset yield strength). ■ Its elongation capacity is far superior to that of ordinary steel, making it an excellent material for seismic resistance. *For more details, please refer to the PDF document or feel free to contact us.
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[Usage] ■ Building structural materials: column materials, beam materials ■ Food factories, pharmaceutical factories ■ Semiconductor factories ■ Seafood processing factories ■ Movable floor pools ■ Nuclear plants ■ Bus shelters ■ Water treatment facilities ■ Signposts, clock towers, monuments ■ Piers, dust removal dam facilities, LNG, etc. * For more details, please refer to the PDF document or feel free to contact us.
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Toyo Special Steel Industry uses round pipes (steel pipes) as raw materials and is primarily based on cold roll forming processing. The three main methods it employs are drawing (draw bench - 30 years), roll forming (40 years), and extrusion (extrusion forming - 35 years). Currently, it focuses on the extrusion method for large diameter sizes and the roll forming method for medium and small diameter sizes, innovating its equipment accordingly. Currently, the 14th unit is being manufactured, with 6 units operational at the Tsuge factory.