We have high-quality rectangular stainless steel tube for structural steel and aesthetic construction. Our rectangular structural tube provides corrosion resistance in the harshest industrial settings, and is also used for architectural purposes. For an overview of product offerings view our stainless steel products line card. Our structural specialists can assist you with selecting our stainless steel products. View our tube sizes & weights charts. We supply a variety of stainless steel rectangular tube conforming to ASTM A554. View the standard specifications chart. View our stainless steel grade chart to help you select the products that are right for your construction needs. Our Reference Catalog includes the many different tube, pipe and other structural and piping products we offer. Included in the information are specification charts and product illustrations so you can easily identify your stainless steel products. Stainless steel rectangular tube is referred to as tube steel or structural tubing. Rectangular tubing is used for structural purposes and can be purchased in many different types of steel and alloys. Manufacturing rectangular tube goes through the same process of manufacturing pipe, but the rectangular tube goes through a series of shaping stands, meeting its final rectangular specifications.