A study of relative plutonium and orallay values is being made by representatives of the production sites under direction of AEC Headquarters. Division of Production. (Oralloy is uranium enriched to 93-15 percent U-235.) Under study assumptions that will be detailed later, oralloy would cost less than formerly, and may be cheap enough to enrich production reactor discharged uranium to reactor input assays. To date uranium recycle enriching assays have been held below two percent U-235 -- usually 1.2 to 1.5. Use of orallay for enriching reactor tails would conserve U-236. which would increase neptunium and Pa-238 production. There may be other profitable reactor uses for the cheaper oralloy.The intent of this document is to give the oralloy cost data to those who may study or evaluate oralloy use, and to explain the basis for oralloy cost so that the validity of any use may be assessed.