Standards

NB/T 11730-2024 Active

NB/T 11730-2024 NB/T 11730-2024 Insulation Liquid - Test method for determination of surface tension of insulation liquid - Circular ring method

This document specifies the method of determining the interfacial tension of insulating liquids using the ring method under near-equilibrium conditions. To obtain the true value, the interfacial tension value is measured 180 seconds after the interface is formed. This document is applicable to mineral insulating oils and synthetic ester insulating oils.

Publish Date: 2024-12-25

NB/T 20005.10-2024 Active

NB/T 20005.10-2024 NB/T 20005.10-2024 Pressurized Water Nuclear Power Plant - Carbon Steel and Low Alloy Steel for Pressure Pipe - Part 10: Welded Steel Tubes for Class 2 and Class 3 Equipment, Filled Metal Welding Method

It is suitable for welding with filler metal in pressurized water reactor nuclear power plants for 15-MnHR steel pipes with a wall thickness of between 6.4mm and 64mm and an outer diameter of greater than or equal to 405mm, as well as Q260HR, Q265HR, Q295HR, and Q355HR steel pipes with a wall thickness of equal to or less than 80mm.

Publish Date: 2024-12-25

NB/T 20008.8-2024 Active

NB/T 20008.8-2024 Other Materials for Pressurized Water Nuclear Power Plant - Part 8: Nickel-base Corrosion Resistant Alloy Tubes

It is suitable for NS3105 nickel-based corrosion-resistant alloy pipes used in pressurized water reactor nuclear power plants. It is not suitable for heat exchange pipes of safety-class equipment in pressurized water reactor nuclear power plants.

Publish Date: 2024-12-25

NB/T 20008.4-2024 Active

NB/T 20008.4-2024 NB/T 20008.4-2024 Other Materials for Pressurized Water Nuclear Power Plant, Part 4: Nickel-chromium-iron alloy forged and rolled parts for Class 1, 2, 3 equipment

It is suitable for forged and rolled parts made of nickel-chromium-iron alloy used in Class 1, 2 and 3 equipment of pressurized water reactor nuclear power plants.

Publish Date: 2024-12-25

NB/T 20006.38-2024 Active

NB/T 20006.38-2024 The alloy steel for pressurized water nuclear power plant - Part 38: Mn-Ni-Mo steel for forged parts used in non-active back-up equipment

It is suitable for the use of 19MnNiMo and 20MnNiMo alloy steel forgings in equipment such as the core refill tank, the non-active residual heat discharge heat exchanger, the normal residual heat discharge heat exchanger, and the emergency injection tank of pressurized water reactor nuclear power plants.

Publish Date: 2024-12-25

NB/T 20006.11-2024 Active

NB/T 20006.11-2024 Pressurized water reactor nuclear power plant alloy steel - Part 11: Magnesium-nickel-molybdenum steel forgings for pressure vessel shell and head

It is suitable for the forged parts of 19MnNiMo and 20MnNiMo alloy steel used in the pressure vessel and head of pressurized water reactor nuclear power plants.

Publish Date: 2024-12-25

NB/T 20006.7-2024 Active

NB/T 20006.7-2024 Pressurized water reactor nuclear power plant alloy steel - Part 7: Molybdenum-nickel-manganese steel forged components for steam generator shell

It is suitable for forged parts made of 20MnNiMo alloy steel for the steam generator cylinders of pressurized water reactor nuclear power plants.

Publish Date: 2024-12-25

NB/T 20007.1-2024 Active

NB/T 20007.1-2024 Pressurized water reactor nuclear power plant stainless steel for pressure vessel equipment - Part 1: Austenitic stainless steel for forged parts used in Class 1, 2, and 3 equipment

It is suitable for austenitic stainless steel forgings used in Class 1, 2 and 3 equipment of pressurized water reactor nuclear power plants.

Publish Date: 2024-12-25

NB/T 20006.21-2024 Active

NB/T 20006.21-2024 The alloy steel for pressurized water reactor nuclear power plants - Part 21: Manganese-nickel-molybdenum alloy steel for integral bottom head of reactor pressure vessel

It is suitable for the forged parts made of 19MnNiMo alloy steel used in the integrated bottom head of the reactor pressure vessel in pressurized water reactor nuclear power plants.

Publish Date: 2024-12-25

NB/T 20008.10-2024 Active

NB/T 20008.10-2024 NB/T 20008.10-2024 Other Materials for Pressurized Water Nuclear Power Plant - Part 10: Nickel-based alloys for internals and control rod drive mechanisms

It is suitable for GH4145 and GH4169 nickel-based alloy rods used in the reactor internals and control rod drive mechanisms of pressurized water reactor nuclear power plants.

Publish Date: 2024-09-24

NB/T 20008.9-2024 Active

NB/T 20008.9-2024 Other Materials for Pressurized Water Reactor Nuclear Power Plants - Part 9: Nickel-based Corrosion Resistant Alloy Rods

The NS3105 nickel-based corrosion-resistant alloy rod is suitable for components such as the end of the vent pipe of the reactor pressure vessel in pressurized water reactors and the end plug of the heat transfer pipe in steam generators.

Publish Date: 2024-09-24

NB/T 20008.6-2024 Active

NB/T 20008.6-2024 Other Materials for Pressurized Water Nuclear Power Plant - Part 6: Nickel-base Corrosion Resistant Alloy Sheet

It is suitable for the water chamber partition of the steam generator in pressurized water reactor nuclear power plants, made of NS3105 nickel-based corrosion-resistant alloy plate.

Publish Date: 2024-09-24