UNSPSC 30104001: Round hollow structural section HSS

A circular hollow metal profile used in structural engineering

UNSPSC 30104001 Round hollow structural section HSS is a Commodity code under which state and local governments procure structural steel components—primarily W-beams, H-piles, I-beams, and fabricated metal plates—for infrastructure, facility, and capital construction projects. Recent solicitations show county and state purchasing offices buying finished structural steel pieces in specific dimensions and quantities, sized and specified for immediate incorporation into roadways, bridges, and building systems. Greenville County, South Carolina has emerged as a repeat buyer, posting two separate sealed bids within six weeks for bridge yard materials: W-beams in August and H-piles in September 2026. The State of Illinois Department of Agriculture also solicited I-beams and metal plates for the Illinois State Fair facility. Issuing bodies include county transportation and engineering divisions, state facility management offices, and county purchasing departments. Evaluation criteria across these opportunities weight price heavily (typically 99 percent) with minor points for responsiveness, delivery capability, and insurance documentation. Vendors must provide proof of manufacturer authorization or established dealer status, maintain general liability insurance of $1 million to $2 million, submit references for similar work, and commit to firm pricing on net-30 payment terms with F.O.B. destination delivery.

Geographic activity concentrates in South Carolina and Illinois based on recent postings, with Greenville County showing consistent procurement velocity for bridge and yard infrastructure. The Greenville County IFB 27022 for W-beams closed October 9, 2026, with twelve beams (four at 27 inches, 114 pounds per foot, and eight at 27 inches, 94 pounds per foot, all 27 feet long) delivered to the Bridge Yard at 98 Camp Road, Travelers Rest, South Carolina; evaluation and tentative award occurred October 12–15 with notice to proceed October 19. The earlier Greenville County IFB 27014 for H-piles (24 total: twelve at 12 inches, 53 pounds per linear foot, 30 feet, and twelve at 12 inches, 53 pounds per linear foot, 40 feet) closed September 3, 2026, with award timeline September 8–14 and a $1 million general liability insurance requirement plus Performance and Payment Bond equal to total contract price. The State of Illinois procurement (26406AGRBLDG4B52030) solicited eight 4-inch, 7.7-pound, 15-foot I-beams at $375 per unit and two 4-foot by 8-foot metal plates at $450 per unit, closed April 30, 2026, with delivery required within 30 days of order. Sealed-bid and basic ordering agreement notice types dominate, with tight response windows (three to ten business days) and strong emphasis on manufacturer certification and delivery logistics.