UNSPSC 40175311: Pipe Tube

Pipe tube refers to round, square, rectangular and oval hollow sections that are used for pressure equipment, for mechanical applications, and for instrumentation systems.

UNSPSC 40175311 Pipe Tube is a Commodity code representing welding and construction materials that state and local governments procure for infrastructure, maintenance, and educational purposes. Recent opportunities show state and local jurisdictions purchasing steel pipe, tubing, and tube components for water treatment facilities, correctional institutions, educational programs, and general construction. The Colorado Department of Corrections sought structural steel components for job training at a correctional facility; the Community College of Denver's Advanced Manufacturing Center solicited carbon steel pipe, tubes, and sheet materials for its welding program; and West Basin Municipal Water District acquired rain barrel flex arms and tubes for water conservation infrastructure. The code spans both commodity supply (off-the-shelf tubular stock in various gauges and dimensions) and installation-ready products (pre-fabricated tubes with specified connections and finishes).

Issuing bodies include special-purpose water districts, state correctional and education departments, county and municipal public works agencies, and community college systems. West Basin Municipal Water District appears as a repeat buyer. Activity concentrates in California, Colorado, and the Mountain West, with secondary activity in Texas, Florida, and the Northeast. Representative recent opportunities include the Colorado Department of Corrections' metal products solicitation (DQ 2026000365, documented quote, response due March 27, 2026) for square tubes, angle iron, channels, and sheet stock; Community College of Denver Advanced Manufacturing Center's welding supplies RFQ (DQ1GMAA20260005311, response due July 6, 2026) for ASTM A36 carbon steel flat bar, plate, sheet, pipe, and tubes with estimated annual spend around $55,000; and West Basin Municipal Water District's rain barrels and accessories RFQ (IFQTH0138, response due July 16, 2026) for 1,500 pre-assembled rain barrels and flex tubes for coastal Los Angeles County distribution. Price competition is tight on standardized materials, and small business or local enterprise certifications (SBE, LBE) appear in several recent solicitations as evaluation or preference factors.