Document: NUREG-0800
Document ID: e2737d9a-8e56-46cb-a97d-aaf62a442c6c
Document Type: srp
Title: PRESSURE-TEMPERATURE LIMITS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340637.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.3.2
CFR Part: 
CFR Title: 

Content:
sing this SRP section. Except in those cases in which the applicant proposed an acceptable alternative method for complying with specific portions of the Commission's regulations, the method described herein will be used by the staff in its evaluation of confor- mance with Commission regulations. Implementation schedules for conformance to parts of the method discussed here- in are contained in the referenced regulatory guide. VI. REFERENCES 1. 10 CFR Part 50, Appendix A, General Design Criteria 1, 14, 31, and 32. 2. 10 CFR Part 50, Appendix G, "Fracture Toughness Requirements." 3. 10 CFR Part 50, Appendix H, "Reactor Vessel Material Surveillance Program Requirements." 4. ASME Boiler and Pressure Vessel Code, Section III, including Appendix G, "Protection Against Nonductile Failure," American Society of Mechanical Engineers. 5. WRC Bulletin 175, "PVRC Recommendation on Fracture Toughness," Welding Research Council. 6. Branch Technical Position - MTEB 5-2, "Fracture Toughness Requirements for Older Plants," attached to this SRP section. 7. Regulatory Guide 1.99, "Effects of Residual Elements on Predicted Radiation Damage to Reactor Vessel Materials." 8. 10 CFR Part 50, paragraph 50.55a, 'Codes and Standards." 5.3.2-10 Rev. 1 - July 1981 E 1.2 1.4 1.6 1.8 20 22 24 Z6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 )/HiiCKNESS (N.) Mm AND Mb VS. WALL THICKNESS FOR SEMIELLIPTICAL SURFACE FLAW UT DEEP AND 1IXT LONG FIGURE 1 5.3.2-11 Rev. 1 - July 1981 11 kii la beI I- a Al -240 -200 -160 -120 -80 -40 0 40 80 120 160 200 240 TEMPERATURE RELATIVE TO RTNDT, (T-RTNDT), FAHRENHEIT DEGREES FIGURE 2 *2 3 4 5 6 7 8 9 10 1t WALL THICKNESS (INCHES) 45- STRESS INTENSITY FACTOR CAUSED BY THERMAL STRESS FOR CYLINDERS WITH RADIUS/THICKNESS - 10 FIGURE 3 5.3.2-12 Rev. 1 - July 1981 BRANCH TECHNICAL POSITION - HTEB 5-2 FRACTURE TOUGHNESS REQUIREMENTS A. Background Current requirements regarding fracture toughness, pressure-temperature limits, and material surveillance are covered by the ASME Code and