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What You Don't Know About Structural Steel

Time to Read: 3 m 13s

Structural steel beams form the backbone of many construction projects. But what is structural steel and how is it used?

Many people don’t know that structural steel is not one single alloy. Different concentrations of alloying elements are added to accomplish different objectives. Here are some of the most commonly found structural steel alloys:

Cold Rolled ASTM-A1008 is a low carbon steel material that comes in formed shapes such as channel and angle, for general structural applications. The additional steps for cold rolling give the steel a finer finish and improved dimensional accuracy.

Hot rolled (HR) ASTM-A36 mild (low-carbon) steel contains up to 27% carbon – more than standard mild steel. It has a minimum yield point of 36K, and is easily weldable and formable. It is one of the most widely used structural steels in a range of applications, including support frames, machinery and equipment braces, and transportation frames. HR A36 is also available in Galvanized form, for added corrosion resistance.

Hot rolled (HR) ASTM-A529 Grade 50 steel is stronger than A36, meeting the standard of 50K minimum yield strength. This steel is used for supports and structural components in bridges, buildings and other structures requiring increased strength. It can be welded, bolted, riveted, machined and fabricated easily.

 

Structural Cross Sections

 

Structural steel comes in different cross sections, including channel, angle, beam, and tee. These cross sectional shapes can either be formed or welded. Because they’re available in a huge variety of sizes and styles, steel structural shapes are used to build everything from furniture to skyscrapers. Common applications include:


  • Marine piers

  • Architecture & building construction

  • Shipbuilding

  • Truck trailers & shipping containers

  • Furniture

  • Heavy equipment

  • and more

 

 

Steel Angle Shape

 

Angle – Steel angle is available in different grades, including Cold Rolled ASTM A-1008, Hot Rolled ASTM-A36 Steel Angle, and Galvanized A36. Steel angle is used for a wide range of applications, including construction equipment, farm implements, manufacturing and repair, and fabrication. Its 90° angled shape adds an abundance of strength and rigidity to numerous projects and it is easy to weld, cut, form and machine.

 

Tee Shape

 

Tee - The “T” shape of hot rolled steel tee makes it favorable for applications where large loading bearing capabilities are a must, including fabrication, manufacturing, frames, trailers, etc. The top (flange) provides compressive stress resistance while the vertical section (web) resists shear stresses and bending. This product is also easy to weld, cut, form and machine.

 

Channel Shape

 

Channel - Steel channel can be constructed with cold rolled mild steel, hot rolled mild steel or hot rolled ASTM-A36 steel alloy. The interior may be fabricated with radius corners or 90° angled corners. Hot rolled steel channel has a mild steel structural C shape with inside radius corners that are ideal for all types of structural applications. The shape of this product is also ideal for added strength and rigidity over steel angle when a project's load is vertical or horizontal, and can be easily welded, cut, formed and machined.

 

Beam Shape

 

Beam – Hot rolled steel I-beams provide great load bearing support when used horizontally or standing as columns. They are also used regularly throughout the construction industry when heavy load support is required, such as bridges and skyscrapers.

Industrial Metal Supply offers a full line of durable, long-lasting, and versatile structural steel shapes, including steel channel, steel angle, steel beams, and steel tees, a range of standard sizes and lengths. We also provide cut-to-length services as needed to give you steel shapes that match your design requirements.

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