Explore our selection of square tube in mild steel & stainless steel at Metal Supermarkets. Purchase online or in-store, all cut to your specifications., Get started on your project today! Square tube is stocked in most sizes at our metal supply warehouses in Portland, Dallas, Atlanta, Wallingford, Toledo, and Los Angeles. Standard lengths and cut to size are available. We carry square metal tubing in aluminum, brass, carbon steel, and stainless steel., Steel square tube is one of most versatile products, used in many structural, manufacturing, fabrication and repair applications. It is also used in ornamental ironwork and other aesthetic uses. Ryerson stocks square steel tubing in A513 (mechanical) and A500 (structural) grades, in a range of sizes and wall thicknesses., Square Mechanical Steel Tubing Structural steel tubing is designed to provide strength and rigidity to structures while minimizing weight. Square tubing has a square cross-section, which makes it suitable for use in applications where rectangular shapes are needed, such as the construction of frames, supports, and other structures., Square steel pipes are a versatile and popular choice for a wide range of applications. From structural support to ornamental accents, these pipes come in a variety of sizes and dimensions to meet different needs. In this article, we will explore everything you need to know about square steel pipe sizes, including their dimensions, uses, and how to select the right size for your project , Steel Square Tube Steel square tubes, also known as square hollow sections (SHS) or square steel pipes, are hollow structural steel tubing characterized by their square or rectangular cross-sectional shape. They are manufactured by bending and shaping flat steel sheets or rolling and welding steel strips into the desired shape..