Appendix A - Technical Specification - MITR Plate Fabrication HIP Can Study - Request for Proposals

Appendix A – Technical Specification
MITR HIP Can Study and Plate Feedstock
Revision 0, September 16, 2026
I.

GENERAL

A. Background

Battelle Memorial Institute, Pacific Northwest Division (Battelle), operator of the Pacific Northwest National Laboratory (PNNL) for the U.S. Department of Energy, is seeking an offeror to Plate Fabrication components. The United States High Performance Research Reactor (USHPRR) project is focused on converting the few remaining research reactors in the United States to High Assay Low Enriched Uranium (HALEU). This conversion requires a new high density fuel form. The selected fuel is U-10Mo foils encapsulated into aluminum cladding. The cladding is diffusion bonded to the fuel foil with a hot isostatic process (HIP).
Historically, the process used draw quality (DQ) carbon steel with carbon steel strong backs. Substantial resources were required to clean the carbon steel prior to use. Therefore, the project would like to transition to stainless steel (SS) cans. Another challenge is the application of the debond agent (Neolube 1.1). Manual application via paint brush resulted coatings that were not uniform. To address both these challenges, the desire is to evaluate both stainless steel components and getting the components pre-coated with the debond agent. Prior to placing steady state orders, Battelle will be performing a surrogate test of the improved cans and intermediate products.
TABLE I Plate Components HIP Study (Intermediate Products) Item No

Item
C67T04V0
C67T03V0
C67T02V0
C67T01V0
C66T03V0
C66T02V0
C66T01V0
A23T01V0
A22T01V0
A21T01V0
C63T01V0

C65T01V0
C64T01V0
C62T01V0

Description
0.001" Shim
0.002" Shim
0.005" Shim
0.010" Shim
0.009" Pocket Plate
0.012" Pocket Plate
0.015" Pocket Plate
0.015" Thick Foil
0.019" Thick Foil
0.027" Thick Foil

10 Gauge Bottom

Strongback

10 Gauge Top Strongback

18 Gauge Strongback

MITR HIP Can Lid

Material
Quantity
1018 carbon steel or approved equal
1018 carbon steel or approved equal
1018 carbon steel or approved equal
1018 carbon steel or approved equal
6061-T6 Aluminum
6061-T6 Aluminum
6061-T6 Aluminum
Haynes 214
Haynes 214
Haynes 214
1018 carbon steel or approved equal
1018 carbon steel or approved equal
1018 carbon steel or approved equal
DQ Steel

Appendix A – Technical Specification
MITR HIP Can Study and Plate Feedstock