Structural/primary Steel Vs. Secondary Steel: What’s The Difference?

When it comes to steel fabrication and erection, it’s important to understand the differences between structural/primary steel and secondary steel. Both types of steel play important roles in construction projects, but they have different characteristics, uses, and benefits. In this blog, we’ll explore the key differences between structural and secondary steel and the advantages of each.


Structural/Primary Steel

Structural steel, also known as primary steel, is the backbone of any building or structure. It is used to create the frame, beams, columns, and other key components of a building’s infrastructure. Structural steel is usually made of high-strength, low-alloy (HSLA) steel and is designed to withstand heavy loads and stress. It is often used in large-scale construction projects, such as skyscrapers, bridges, and industrial buildings.


Advantages of Structural Steel

  • High strength and durability: Structural steel is designed to withstand heavy loads and stress, making it a reliable and long-lasting material for construction.
  • Ease of fabrication and installation: Structural steel is relatively easy to fabricate and install, which can reduce construction time and labor costs.
  • Flexibility: Structural steel can be shaped and cut to meet specific design requirements, making it a versatile material for construction.

Secondary Steel

Secondary steel, on the other hand, is used to reinforce and support structural steel. It is often made of mild steel and is used to create smaller components, such as brackets, braces, and connectors. Secondary steel is usually not as strong as structural steel, but it is still an important material for construction projects.


Advantages of Secondary Steel

  • Cost-effectiveness: Secondary steel is usually less expensive than structural steel, making it a more cost-effective option for smaller components.
  • Ease of fabrication and installation: Like structural steel, secondary steel is relatively easy to fabricate and install, making it a convenient material for construction projects.
  • Versatility: Secondary steel can be used in a variety of applications, from reinforcing concrete structures to creating custom-designed components.


In conclusion, both structural/primary steel and secondary steel play important roles in construction projects. Structural steel provides the strength and durability that is needed for large-scale construction, while secondary steel offers a cost-effective and versatile option for smaller components. At SFES, our team of experts is well-versed in both types of steel and can help you select the best option for your construction project. With our commitment to quality, reliability, and authenticity, you can trust us to deliver the best results every time. Contact us today to learn more and receive a quote for your next construction project.Structural/primary Steel Vs. Secondary Steel: What’s The Difference

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