NB/T 20230-2013
Fracture toughness requirements for materials uesd for coolant pressure boundary of pressurized water reactor (English Version)

Standard No.

NB/T 20230-2013

Language

Chinese, Available in English version

Release Date

2013

Published By

Professional Standard - Energy

Latest

NB/T 20230-2013

Replace

EJ/T 721-1992

Scope

This standard specifies the fracture toughness test requirements and minimum fracture toughness requirements for pressurized water reactor coolant pressure boundary materials. This standard applies to ferritic steel for pressurized water reactor coolant pressure boundary. This standard does not apply to welded joints and the welding materials used in the pressure boundary.

NB/T 20230-2013 Referenced Document

• GB/T 229 Metallic materials—Charpy pendulum impact test method*， 2020-09-29 Update
• GB/T 6803 Drop weight test method for non-plastic transition temperature of ferritic steels*， 2023-12-28 Update
• NB/T 20220 Irradiation surveillance of reactor pressure vessels (RPVs) for light-water cooled reactors

NB/T 20230-2013 history

• 2013 NB/T 20230-2013 Fracture toughness requirements for materials uesd for coolant pressure boundary of pressurized water reactor
• 1992 EJ/T 721-1992 Fracture Toughness Requirements of PWR Coolant Pressure Boundary Materials

NB/T 20230-2013 Fracture toughness requirements for materials uesd for coolant pressure boundary of pressurized water reactor has been changed from EJ/T 721-1992 Fracture Toughness Requirements of PWR Coolant Pressure Boundary Materials.