What does HSS stand for?

What does HSS stand for?

• A. Hollow Structural Section
• B. High Strength Steel
• C. Hollow Steel Sheet
• D. Heavy Structural Section

Answer: (A)

HSS refers to hollow structural sections—steel tubes with hollow cross-sections, available in square, rectangular, or circular shapes. This hollow form gives a high strength-for-weight ratio and good torsional stiffness, making them ideal for structural frames, columns, and bracing where connections are welded or bolted. The other terms don’t fit standard structural terminology: high strength steel describes a material property, hollow steel sheet isn’t the recognized designation for structural members, and heavy structural section isn’t a typical category used for hollow tubes. In practice you’ll also hear SHS, RHS, and CHS as shorthand for square, rectangular, and circular hollow sections.