UNSPSC 31311200: Riveted pipe assemblies

UNSPSC 31311200 Riveted pipe assemblies is a Class code that in practice covers a broader range of steel fabrication and metal assembly work than the nominal code name suggests. State and local governments buy custom steel fabrication services under this code, including welded and riveted structural assemblies, protective enclosures, handrails, and specialized metal works for facilities maintenance and asset protection. The issuing bodies are primarily city and municipal governments with facilities and public-works departments managing vandalism mitigation, infrastructure repair, and safety-critical construction. Vendors solicited under this code typically operate in-house fabrication shops and must demonstrate capabilities across multiple materials (steel, galvanized steel, stainless steel, aluminum) and techniques including welding, machining, metal finishing, and emergency field repairs.

The City of Tucson posted RFP No. 240080 on March 26, 2026, for steel fabrication services through its Facilities and Communications Maintenance department, with a proposal due date of November 30, 2023, at 2:00 P.M. Arizona time and a pre-submittal virtual meeting on November 16, 2023. The contract covers custom doors, steel cages, anti-vandalism boxes and covers, handrails, and specialized protective works, with an initial one-year term and up to four optional one-year extensions. Vendors must meet Section 3 Program compliance (25% of labor hours by Section 3 Workers, 5% by Targeted Section 3 Workers), DBE participation, Buy America provisions, and civil rights standards. Evaluation criteria include method of approach, qualifications, experience, and pricing, with a typical six-week project completion timeline. The solicitation reflects municipal demand in Arizona for federated fabrication services tied to HUD and transit funding streams.