Generic Technical Activity A-12 Fracture Toughness (Generic Letter 80-46)
… A-12 Fracture Toughness (Generic Letter 80-46) … GL80046 Distribution May 19 1980 Docket ACRS (16) NRC PDR CR BCs LOCAL … to potential susceptibility to low fracture toughness. Plants not reviewed during the generic study are already … used in steam generator upper horizontal restraints. L. St. Lucie Unit No. 1: A-515 in coolant pump snubber clevises; A- …