UNSPSC 31311705: Low alloy steel bonded pipe assemblies

UNSPSC 31311705 Low alloy steel bonded pipe assemblies is a Commodity code that in recent state and local procurements describes supply contracts for industrial pipe, fittings, and related materials used in municipal infrastructure, airport operations, stormwater systems, and water utilities. The code's nominal name references steel-bonded pipe, but recent solicitations show state and local buyers purchasing a broader range of piping materials and systems: HDPE and PVC pipes with fittings, concrete pipe with lift holes and flared ends, ductile iron pipe for water distribution, and fiberglass-reinforced polymer mortar (FRPM) pipe for sewer replacement. City public works departments and county water authorities dominate the issuing-body mix, with repeat solicitors including the City of Phoenix Public Works Department (which posted IFB27SW0447 in September 2026 for a three-year supply agreement for HDPE and PVC pipe, fittings, and hand tools, and IFB26SW0379 in August 2026 for identical scope), Colquitt County Georgia (concrete pipe with lift holes and flared ends for a one-year contract due October 14, 2026), and the City of Augusta Georgia (HDPE pipe, couplings, and end sections for down-drain maintenance under ITB 27-116, due September 29, 2026). The City of Dallas is also active, soliciting a five-year ID/IQ master agreement for ductile iron pipe supply to its Water Utilities department with bids due June 12, 2026.

Activity clusters in the Southeast and Southwest. Georgia (Colquitt County, Clayton County Water Authority, City of Augusta) and Florida (City of Palm Bay, Orange County, Pasco County) account for the majority of recent postings; Arizona (City of Phoenix) shows sustained repeat volume; Texas (City of Dallas, City of Arlington for concrete repair) rounds out the geographic spread. Most solicitations are on an as-needed or indefinite-quantity basis with one- to five-year initial terms and optional extensions. Delivery performance and local inventory maintenance are standard requirements; firm fixed pricing over multi-year terms is typical, with no price escalation unless specified at least sixty days prior to renewal (City of Augusta allows up to three percent escalation with documentation). DBE and small-business participation plans are common riders on federally assisted or airport-related procurements. The code shows no recent activity in northern states or in projects unrelated to municipal infrastructure replacement or maintenance.