Steel sections are the bread and butter of steel fabrication. Designers, architects and engineers choose different sections for their aesthetics and structural qualities – their choices determined by size, weight and profile. Steel is extremely versatile and can be moulded to many different shapes. This mean fabricators like Steel Fabrication Services can fashion steel into to almost any shape or size, however this carries a premium. On the other hand there are many common steel sections that you will see used throughout steel construction and fabrication, and would have come across in structures everyday.
From circular hollow sections to flat bars, here’s a look at the most common steel sections and their common uses.
Angled structural steel sections can either either be equal or unequal. Both are right angled, however, unequal sections have different sized axis’ making them L-shaped. This kind of section is much stronger (up to 20%) with much higher strength to weight ratios. Angled section are used in residential construction, infrastructure, mining and transport. They are available in wide range of lengths and sizes.
Parallel Flange Channels
These channelled beams are U-shaped with right angled corners – a bit like a stick of staples. They come in many different sizes, however, the two sides are always the same length and are parallel to each other. They also offer a high strength to weight ratio and have similar uses to angled sections.
Tapered Flange Beams
Taper flange beams are I-shaped sections and are also available in a wide-variety of sizes. In construction these are often used for cross-sections of girders. Though they have quite high resistance ratios, they are not usually recommended when pressure is present along their length as they are not torsion (twisting) resistant.
Circular Hollow Sections
Circular Hollow Sections have hollow tubular cross sections and have much higher resistance to torsion that tapered flange beams. Thickness of the walls are uniform around the entire circle which makes this beams great for use with multi-axis loading applications.
Rectangular Hollow Sections
Similar to circular hollow sections however they have rectangular cross sections. They are very popular in many mechanical and structural applications. Their flat surfaces make them prime for use in joining and fabrication.
Square Hollow Sections
Like their hollow section brothers but with square cross sections, these are used in smaller applications such as columns or posts. However they are unsuitable for beams as their shapes are inherently difficult to bolt into other shapes. They are also known as ‘box sections’.
The most versatile steel section as they require to be attached to another section. In some cases they can be attached to another section as a strengthening tool. They are also often referred to an ‘plates’.
If you are considering steel for any construction purposes and would like a professional opinion, we can help. Our team expert structural steel fabricators have the experience and knowledge to answer any of your questions and will ensure that you find the best solution to suit your needs. To contact us today, simply call, fax, email for a steel quote or drop by our Brookvale location.