- Standard No.
- NB/T 20006.14-2010
- Language
- Chinese, Available in English version
- Release Date
- 2010
- Published By
- Professional Standard - Energy
- Latest
-
NB/T 20006.14-2010
- Replace
-
EJ/T 469-1999
- Scope
- This part specifies the requirements for the manufacturing, chemical composition, mechanical properties, testing and inspection of main bolts, nuts, and gasket materials used in level 1 equipment of pressurized water reactor nuclear power plants. This section applies to the main bolts, nuts, washers of the reactor pressure vessel of the pressurized water reactor nuclear power plant and the reactor coolant pump volute bolts, nuts and No. 1 sealing case screws with a diameter of not more than 300 mm, containing or not containing vanadium 40CrNi2MoV and 40CrNi2Mo nickel-chromium-molybdenum alloy steel forged rods. Pressure regulator manhole bolts, nuts and steam generator bolt fasteners can be used as a reference.
NB/T 20006.14-2010 history
- 2010 NB/T 20006.14-2010 Alloy steel for pressurized water reactor nuclear power plants-Part 14: Forged nickel-chromium-molybdenum steel bars with or without vanadium for use in making Class 1 components bolts fastener
- 1998 EJ/T 469-1999 Specification for main bolting materials of safety class 1. equipments for pressurized water reactor nuclear power plants
- 1989 EJ 469-1989 Technical Specifications for Main Bolt Materials of Safety Level 1 Equipment of 300MW Pressurized Water Reactor Nuclear Power Plant
NB/T 20006.14-2010 Alloy steel for pressurized water reactor nuclear power plants-Part 14: Forged nickel-chromium-molybdenum steel bars with or without vanadium for use in making Class 1 components bolts fastener has been changed from EJ/T 469-1999 Specification for main bolting materials of safety class 1. equipments for pressurized water reactor nuclear power plants.