UNSPSC 31311102: Carbon steel solvent welded pipe assemblies

UNSPSC 31311102 Carbon steel solvent welded pipe assemblies (Commodity) describes piping infrastructure and related fittings that state and local governments procure for water systems, stormwater drainage, natural gas distribution, aviation facilities, and industrial equipment maintenance. Recent state and local solicitations under this code show governments buying HDPE and PVC pipes in various diameters with associated couplings, elbows, and fittings for as-needed supply; portable and shop welding services for fabrication and repair on steel and stainless steel components at water treatment plants, lift stations, and wastewater facilities; and specialized outfall piping replacement for coastal stormwater infrastructure. The issuing bodies are mixed—city public works departments (Phoenix, Palm Bay, Lawrenceville, Augusta), county solid waste and water authorities (Hillsborough, Palm Beach, Notla), and regional water and wastewater service providers. Phoenix Public Works has posted two separate IFBs for industrial pipe supply in the past two months, indicating recurring demand at that jurisdiction.

Geographic activity clusters in Florida (Orange County, Broward County, Palm Bay, Hillsborough County) and the Southeast (Georgia, Arizona, California). Representative recent opportunities include the City of Phoenix Public Works Department IFB 27-SW-0447 for supply of HDPE and PVC pipe with fittings and hand tools on an as-needed, three-year term with two one-year extensions, offers due September 30, 2026, subject to DBE-N compliance and FAA Grant Assurances for Phoenix Sky Harbor and subordinate airport facilities; the City of Augusta, Georgia ITB 27-116 for various HDPE pipe, couplings, and end sections for down-drain installation and maintenance, bids due September 29, 2026, with MWBE program requirements and local-bidder preferences on awards under $100,000; Broward County's open-end welding and fabrication services RFP (OPN2131884B2) with bids due July 1, 2026, covering portable and shop welding on steel, stainless steel, and aluminum at water treatment plants and wastewater facilities, with SBE and CBE procurement preferences; and the City of Lawrenceville's request for natural gas pipe materials supplier with just-in-time delivery coordination for the Cedars Road to Sugarloaf Parkway DOT Project 13895, bids due July 23, 2026. Contracts typically run one to three years with firm fixed pricing, require local inventory and 24- to 48-hour delivery capability, and often include insurance and bonding requirements. DBE-N, SBE, CBE, and local-bidder preferences appear across multiple solicitations.