UNSPSC 40183113: Carbon steel instrumentation tube

Instrumentation tubing is made from carbon steel, and connects to the tubing or tubes utilized to attach instruments to central piping, other machines, appliances, or plumbing equipment. Instrument tubing is usually used adjacent to these piping systems, pressure switches, valves, flow monitors, and permitting the combination of pressure gauges.

UNSPSC 40183113 Carbon steel instrumentation tube (Commodity) does not align with the recent state and local procurement activity posted under this code. The opportunities tagged to this Commodity code overwhelmingly solicit polyvinyl chloride (PVC), high-density polyethylene (HDPE), and ductile iron pipe for water and sewer infrastructure—not carbon steel instrumentation tube. The City of Phoenix Public Works Department has posted two industrial pipe and fittings contracts (IFB 27-SW-0447 in September 2026 and IFB 26-SW-0379 in August 2026) covering HDPE and PVC pipe for three-year supply-on-demand arrangements, but neither specifies carbon steel tube. The City of Augusta, Georgia (ITB 27-116, due September 29, 2026) and Douglasville-Douglas County Water and Sewer Authority (IFB 327, due October 7, 2026) both seek HDPE pipe, couplings, and fittings for water and sewer maintenance on annual and multiyear terms. Santa Clara County's Sanitation District No. 2-3 (ITB, due September 17, 2026) contracted for PVC SDR26 and HDPE pipe replacement in sewer infrastructure repair. DeKalb County, Georgia (ITB 2026-034-ITB, due August 27, 2026) solicited quick insertion valves and tapping sleeves for pressurized pipelines under a three-year multiyear contract.

The issuing bodies are water and wastewater utilities, cities, counties, and special districts across Arizona, Georgia, California, and Florida. Utilities dominate the buyer base, with repeat activity from Phoenix Public Works and regional water authorities. The geographic spread spans Arizona, Georgia (particularly the Atlanta metro region), California, and Florida. Because the recent opportunities show no substantive activity in carbon steel instrumentation tubing and the code taxonomy appears misaligned with actual state and local procurement under this number, the code warrants low pursuit priority unless your firm has production capability in PVC and HDPE pipe systems for municipal water and wastewater applications.