1. How is shape availability determined for A500 HSS?
AISC maintains producer listings that show available sizes and weights, updated in real-time. Producers also publish rolling schedules-1.
2. What is ASTM A1085?
A newer specification for HSS released in 2013. It offers improved material properties and guarantees the design wall thickness equals the nominal thickness, simplifying design-1-4.
3. What's the proper call-out for a rectangular A500 HSS?
Use "HSS", overall outside dimensions (in inches), and wall thickness, all as fractions. Example: HSS5×3×3⁄8-1.
4. What's the proper call-out for a round A500 HSS?
Use "HSS", outside diameter, and wall thickness, both to three decimal places. Example: HSS5.563×0.258-1.
5. Can the AISC Specification be used for shapes not in their manual?
Yes. The manual aids common shapes, but the AISC Specification itself can be used to design other shapes that meet its requirements-1.






