Heat Exchanger Inspection Tool

Closed Pre-Solicitation Posted

Solicitation number
NNL-FMP-0046
Agency
Responses due
Set-aside
No set-aside

Opportunity facts

Place of performance
United States

Notice details come from SAM.gov. Updated .

About this opportunity

The Department of Energy is soliciting information on inspection solutions for small, compact heat exchangers fabricated from Alloy 625 Inconel using additive manufacturing, with responses due July 22, 2026. This is a Request for Information (RFI) rather than a committed procurement.

Fluor Marine Propulsion, LLC is seeking vendor capabilities to detect flaws in heat exchangers with internal diameters ranging from 0.100 to 0.400 inches, wall thicknesses of 0.010 to 0.050 inches, and surface roughness of 10 to 200 microinches (Ra). Inspection methods must address eight flaw types: circumferential and axial volumetric flaws, circumferential and axial cracks, voids from printing errors, delamination, degradation (pitting, wear, surface cracks), and wall-thickness measurement. Solutions must accommodate inspection of internal diameter (ID), outer diameter (OD), and webbing structures connecting the tubes. While ultrasonic immersible probes have been previously considered, any method capable of detecting specified flaws will be evaluated.

The RFI requests vendor responses to eleven detailed technical questions covering probe specifications, minimum resolvable defect sizes, measurement accuracy, surface roughness impact, bend radius tolerances, and development feasibility. Respondents must complete a table detailing minimum and maximum tube ID capabilities, wall thickness specifications, and surface roughness ranges for each flaw type. No award value, period of performance, or committed procurement timeline is specified. This effort is classified under Research and Development in the Physical, Engineering, and Life Sciences (NAICS 54171).

Notice text

The Buyer is currently investigating small, compact heat exchangers (HX) fabricated by additive manufacturing (AM) using Alloy 625 Inconel. Inspection solutions (e.g., probes or other methods) are needed for smaller tube diameters than those typically used in traditional manufacturing. This scope of work seeks to obtain information on inspection capabilities at smaller tube sizes.  While ultrasonic (UT) immersible probes have been previously considered, any method capable of detecting the specified flaws of interest will be evaluated.  Additional information in attached problem statement. 

Please submit completed form and any additional inforamtion at below contact.  

Files

File Type Posted
HX Inspection Tool Problem Statement.pdf PDF

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