hollow structural sections
The term Hollow Structural Sections (HSS) refers to high-strength welded steel tubing used as structural elements in buildings and other structures and a variety of manufactured products. It is produced in round, square and rectangular shapes and a broad range of sizes to the ASTM A500, A1085, and A1065 specifications.
Benefits of HSS
High Strength-to-Weight Ratio
HSS often is the most economical structural member due to its structural efficiencies. HSS have high radii of gyration about both axes providing superior compression performance and significant weight savings.
HSS are often favored architecturally because of their smooth sides, rounded corners and closed sections making them an ideal choice when exposing the structure is desired.
Less Surface Area for Coatings
Rectangular (including square) HSS have approximately two-thirds the surface area of an open section of comparable capacity. This means less surface preparation, less painting material and labor and reduced cementitious fireproofing.
Closed sections are advantageous for resisting torsional loads. Additionally, where cleanliness is a requirement like in food processing and other clean facilities, HSS are a natural choice due to their minimal surfaces to collect dust and debris.
The membership of the Steel Tube Institute’s HSS Committee represents the majority of North America’s producers.
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To ensure designers the necessary technical resources for using HSS, we have created the HSS Design Guides that cover specificatio…
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