UNSPSC 31311602: Carbon steel sonic welded pipe assemblies

UNSPSC 31311602 Carbon steel sonic welded pipe assemblies (Commodity) covers welded carbon steel piping products for water, wastewater, stormwater, and gas distribution infrastructure. State and local governments procuring under this code are acquiring finished pipe assemblies—typically reinforced concrete pipe (RCP), high-density polyethylene (HDPE), corrugated metal pipe, and sonic-welded steel components—for new construction, rehabilitation, and replacement of municipal utility systems. Recent solicitations show a mix of supply contracts on annual or multi-year open-end arrangements, emergency infrastructure replacement projects, and construction work encompassing piping materials alongside installation labor and site restoration. Issuing bodies include county water and wastewater authorities (Orange County, Florida; Gwinnett County, Georgia; Broward County, Florida), municipal public works and utilities departments (City of Phoenix, City of Lawrenceville, City of Palm Bay, City of Tucson), regional authorities (Notla Water Authority, Georgia), and state procurement offices (State of California). Counties and cities predominate; water and wastewater utilities are the primary repeat buyers.

Recent activity spans the Southeast (Florida, Georgia) and Southwest (Arizona, California). Representative solicitations include Orange County, Florida's IFB Y26-126 for Sewer Pipes and Fittings (January 2026, five-year term, estimated $28.7 million spending with PVC and ductile iron products on demand), Gwinnett County, Georgia's ITB BL079-26 for annual stormwater pipe purchases (May 2026, four-year term plus renewals, RCP and HDPE in multiple diameters), the City of Phoenix Public Works Department's IFB 26-SW-0379 for industrial pipe and fittings (August 2026, three years plus two one-year extensions, HDPE and PVC with 24–48-hour delivery requirements and DBE program compliance), City of Lawrenceville's ITB for natural gas pipe materials for the Cedars Road to Sugarloaf Parkway DOT project (July 2026), and Orange County's sealed-bid emergency replacement of Wallington Drive Bridge and Egret Way Bridge (July 2026, $6.2 million, encompassing full bridge replacement with piping infrastructure). Additional activity includes Broward County's RFP OPN2131884B2 for welding and fabrication services on carbon and stainless steel components at water treatment plants (July 2026, two-year initial term plus three one-year renewals, SBE and CBE procurement preferences applied).