Evaluation of safe-end weld materials and safe-end replacement experience

Technical Report · Sat Feb 01 04:00:00 EST 1986

OSTI ID:6224593

Carnahan, R A; Horn, R M

The first objective of this program was to review BWR operating plant fabrication drawings and weld procedures to determine weld materials used in recirculation safe end to nozzle joints and safe end nozzle welds. The second objective of this program was to characterize the recirculation safe end replacement activities at five operating BWR's; Duane Arnold, Monticello, Nine Mile Point-1, Santa Maria de Garona (Nuclenor), and Pilgrim. For each plant, discussion was provided to characterize safe end removal, replacement safe end design, and safe end installation. Special procedures used to aid any of the tasks or to repair weld butters were discussed. Specifically, for all plants, low carbon type 316 stainless steel was used for the replacement safe ends except for Duane Arnold where Alloy 600 was used. 51 figs.

• Research Organization: General Electric Co., San Jose, CA (USA). Nuclear Systems Technology Div.
• OSTI ID: 6224593
• Report Number(s): EPRI-NP-4443; ON: TI86920161
• 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
ALLOYS
BWR TYPE REACTORS
CHROMIUM ALLOYS
CONTAINERS
COOLING SYSTEMS
ENERGY SYSTEMS
EVALUATION
INCONEL ALLOYS
JOINTS
MATERIALS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NOZZLES
PIPES
PRESSURE VESSELS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR MATERIALS
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
WELDED JOINTS