Steel Square Tube ASTM A500 (Square HSS)
Cold-formed ERW square hollow structural sections (HSS) to ASTM A500 Grade B and Grade C, from ¾" × ¾" to 20" × 20" (19.05–508 mm), walls 0.063" to 0.750" (1.6–19.05 mm). Standard length 6 m (20 ft), special lengths on request.
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Available Sizes & Finishes
126 sizes available
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Thickness (mm)
Applications & Selection Guide
ASTM A500 square HSS is cold-formed, electric-resistance welded structural tubing: the standard closed section for columns, posts, frames, trusses and canopies in steel buildings across the US and Latin America. It is offered in Grade B (minimum yield 46 ksi / 315 MPa) and Grade C (50 ksi / 345 MPa).
Sizes run from ¾" × ¾" to 20" × 20" with walls from 0.063" to 0.750". Each size page gives the HSS designation, metric dimensions, weight in lb/ft and kg/m, and section properties calculated with the AISC design wall of 0.93 × nominal and a 2t corner radius. The internal weld bead can be removed on most sizes from 2" × 2".
Standard length is 6 m (about 20 ft); special lengths are available on request. The minimum order is 10 t per size; if the size is already in production, we can accept orders from 5 t. We ship from Türkiye to US and Latin American ports with mill test reports.
Product Information
Material Grade
ASTM A500 Grade B, Grade C
Manufacturing Standard
ASTM A500/A500M
Material Type
Steel
Category
Square HSS
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