Document: NUREG-0800
Document ID: 8d8c874b-f1ef-4884-8228-654f526c0ce4
Document Type: srp
Title: PUMP FLYWHEEL INTEGRITY (PWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070445.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.1.1
CFR Part: 
CFR Title: 

Content:
mented. 329 Placeholder Integrated Impact. Consider replacing This Integrated Impact has not citation of ASTM A-370-1972 with the latest version, been processed. Subsections II ASTM A-370-1992. and VI would be impacted if implemented. 330 This is a minor editorial change to the terminology II ACCEPTANCE CRITERIA under used to describe the fracture toughness properties. heading 2. Fracture Toughness, The 1989 edition of ASME code, section III now change "critical stress intensity identifies the former critical stress intensity factor K factor" to "reference stress Ic as the critical or reference stress intensity factor K . intensity factor" and change K to Ir K , being K plus a standard deviation, is thus more K . Ir Ic conservative than K . Ic Ic Ir III REVIEW PROCEDURES under heading 2. Fracture Toughness, change "critical stress intensity factor" to "critical or reference stress intensity factor." 721 Placeholder Integrated Impact. Consider revising RG This Integrated Impact has not 1.14 to incorporate the results of the comparison with been processed since it concerns the latest version of this standard, ASTM A20-1993. recommended revision of RG 1.14. 881 Revise Review Procedures materials suitable for III REVIEW PROCEDURES fabrication of reactor coolant pump flywheels to under heading 1. Material include an additional grade of material. Selection, added to the last sentence of the first paragraph the specification ASME SA-508 Class 3.