東洋特殊鋼業 List of Products and Services

The "Stainless TTK-304SE" is a lightweight square steel pipe and shaped pipe with a hollow interior. It features a square SUS stainless steel pipe with a thickness of 3.0mm and sharp corners. The thick plate gives it a sense of weight, and the small edges create a sharp design. Significant weight reduction compared to flat steel allows for cost savings. It uses welded pipes that have undergone solid solution heat treatment. 【Features】 ■ Lightweight due to the hollow interior ■ Sense of weight due to the thick plate ■ Sharp design created by small edges ■ Uses welded pipes that have undergone solid solution heat treatment *For more details, please refer to the PDF document or feel free to contact us.

• Piping 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.

• Piping Materials

We offer the "To-toku Size Slide Series" of square steel pipes and shaped pipes. You can insert a square steel pipe inner tube into a square steel pipe outer tube. Square steel pipes are made from beat-cut material. Please note that when they are long, they may not be insertable due to bending or twisting. We have square and rectangular options available. 【Features】 ■ You can insert a square steel pipe inner tube into a square steel pipe outer tube. ■ Square steel pipes are made from beat-cut material. ■ We offer square and rectangular options. *For more details, please refer to the PDF document or feel free to contact us.

• Piping Materials

At Toyo Special Steel Co., Ltd., we handle "special shaped pipes." We manufacture shaped pipes tailored to their intended use, ranging from thick to thin walls and from large to small diameters. We have achieved over 300 sizes of shaped pipes in the to-toku size category. Roll forming is also suitable for shaping long products, and by cutting them to the required length, we can reduce total costs. The Tsuge factory has a production record of shaped pipes up to 13 meters in length. 【Features】 ■ Manufacturing shaped pipes tailored to their intended use, from thick to thin walls and from large to small diameters ■ Roll forming is also suitable for shaping long products ■ Reducing total costs by cutting to the required length ■ Production record of shaped pipes up to 13 meters in length (Tsuge factory) *For more details, please refer to the PDF document or feel free to contact us.

• Piping Materials

Our company has developed the "Bevel Processing for Stainless Steel SA Columns (Square Steel Pipes)." The development processing of SUS304 stainless steel has challenges such as blade wear and lifespan when using existing processing machines for ordinary steel, leading to many cases where grinding is performed. Grinding requires skilled labor to achieve a stable bevel surface. The beveling technology we have developed allows for smooth cutting of ductile stainless steel with a unique technique, resulting in a stable finish on the bevel surface. 【Bevel Processing Square Steel Pipe Sizes】 ■ Outer Diameter ・50×50 to 400×400 Square ・60×40 to 600×200 Rectangular ■ Wall Thickness: 3.0 to 19.0t ■ Steel Types: SUS304 SUS316 SUS304L SUS316L 　　　　SUS304A-C *For more details, please refer to the PDF document or feel free to contact us.

• Piping Materials

This comprehensive catalog features a wide range of square steel pipes and special-shaped pipes handled by Toyo Special Steel Industry, including the "Toto Size" series and "Structural Stainless Steel." [Featured Items] ■ Basic product information ■ Toto Size series ■ Super small square steel pipes for mechanical structures ■ Structural stainless steel square pipes, among many others *For more details, please download the PDF or feel free to contact us.

• Special Steel