Closeout of IE Bulletin 79-03: Longitudinal weld defects in ASME SA-312 Type 304 stainless steel pipe spools manufactured by Youngstown Welding and Engineering Co

Technical Report · Sat Apr 01 04:00:00 EST 1989

DOI:https://doi.org/10.2172/6344615· OSTI ID:6344615

Foley, W. J.; Dean, R. S.; Hennick, A.

Documentation is provided in this report for the closeout of IE Bulletin 79-03, on the subject of fusion welded austenitic stainless steel pipe (without filler metal) manufactured by the Youngstown Welding and Engineering Company. Only pipe used or planned for use in safety-related systems is considered. The bulletin is closed out on the basis of definite criteria for all of the 121 facilities for which actions were required. This bulletin was issued by the NRC on March 12, 1979, to require certain actions by all holders of operating licenses and construction permits for power reactors. The NRC's concern was based on the discoveries of faulty longitudinal welds at Palo Verde and San Onofre. The investigations for Bulletin 79-03 led to the finding that volumetric examination of the fusion welds per the ASME Code requirements did not assure detection of centerline lack of penetration (CLP). Therefore, the problem of faulty welds applied to all manufacturers of SA-312/A-312 Type 300 Series welded steel pipe. Bulletin 79-03A was issued on April 4, 1980, to supersede the required actions of Bulletin 79-03, and to collect information on all of the subject pipe and fittings in safety-related systems. Refer to NUREG/CR-5284 for the companion closeout report on IE Bulletin 79-03A, ''Longitudinal weld defects in ASME SA-312 Type 304 stainless steel pipe.'' Background information is provided in the introduction and Appendix A of this report as well as NUREG/CR-5284.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (USA). Div. of Operational Events Assessment; Parameter, Inc., Elm Grove, WI (USA)
• OSTI ID: 6344615
• Report Number(s): NUREG/CR-5283; PARAMETER/IE-174; ON: TI89010872
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900 -- Nuclear Reactor Technology-- Reactor Safety
ACOUSTIC TESTING
ADMINISTRATIVE PROCEDURES
ALLOYS
AUSTENITIC STEELS
BWR TYPE REACTORS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CONSTRUCTION PERMITS
CORROSION RESISTANT ALLOYS
DEFECTS
DOCUMENTATION
FABRICATION
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
JOINING
JOINTS
LICENSES
MATERIALS
MATERIALS TESTING
MECHANICAL STRUCTURES
NICKEL ALLOYS
NONDESTRUCTIVE TESTING
OPERATING LICENSES
PERMITS
PIPES
PWR TYPE REACTORS
REACTOR SAFETY
REACTORS
REGULATIONS
SAFETY
SAFETY STANDARDS
STAINLESS STEEL-304
STAINLESS STEELS
STANDARDS
STEEL-CR19NI10
STEELS
SUPPORTS
TESTING
ULTRASONIC TESTING
WATER COOLED REACTORS
WATER MODERATED REACTORS
WELDED JOINTS
WELDING