NB/T 20002.7-2013 (English Version) PDF

Scope: This standard specifies the requirements for welding material acceptance, process qualification, welder qualification, product welding and inspection for wear-resis ant surfacing in mechanical equipment of nuclear is ands in pressurized water reactor nuclear power plants. This standard is applicable to the welding and inspection of wear-resis ant surfacing layer oxyacetylene surfacing, electrode arc surfacing, tungsten argon arc welding and plasma arc surfacing in mechanical equipment of nuclear is ands in pressurized water reactor nuclear power plants.

NB/T 20002.7-2013 Referenced Document

GB/T 1480 Metallic powders.Determination of particle size by dry sieving
GB/T 230 Metallic materials--Rockwell hardness test
GB/T 25778-2010 Procurement guidelines for welding consumables
GB/T 4340.1 Metallic materials.Vickers hardness test.Part 1:Test method
GB/T 4340.2 Metallic materials.Vickers hardness test.Part 2:Verification and calibration of testing machines
GB/T 4340.3 Metallic materials.Vickers hardness test.Part 3:Calibration of reference blocks
GB/T 4340.4 Metallic materials—Vickers hardness test—Part 4：Tables of hardness values*， 2022-03-09 Update
NB/T 20002.1 Welding code for nuclear island mechanical equipment of pressurized water reactor nuclear power plant Part 1: General requirements*， 2021-12-22 Update
NB/T 20002.2 Welding code for nuclear island mechanical equipment of pressurized water reactor nuclear power plant Part 2: Acceptance of welding filler materials*， 2021-12-22 Update
NB/T 20002.4 Welding code for mechanical components of PWR nuclear islands.Part 4: Qualification of filler materials
NB/T 20003.2 Non-destructive testing of nuclear island machinery and equipment in nuclear power plants Part 2: Ultrasonic testing*， 2021-01-07 Update
NB/T 20003.3 Non-destructive testing of nuclear island machinery and equipment in nuclear power plants Part 3: Radiographic testing*， 2021-01-07 Update
NB/T 20003.4 Non-destructive testing of nuclear island machinery and equipment in nuclear power plants Part 4: Penetration testing*， 2021-01-07 Update

2021 NB/T 20002.1-2021 Welding code for nuclear island mechanical equipment of pressurized water reactor nuclear power plant Part 1: General requirements
2013 NB/T 20002.1-2013 Welding code for mechanical components of PWR nuclear islands.Part 1:General requirements
0000 EJ/T 1027-1996