Detail of NB/T 20009.1-2010

Introduction of NB/T 20009.1-2010

1 Scope This part specifies the models, technical requirements, test methods, inspection rules, etc. of carbon steel covered electrodes for Class 1, 2, 3 components of pressurized water reactor nuclear power plant. This part is applicable to carbon steel electrodes for manual arc welding of Class 1, 2, 3 components (including container, heat exchanger, pump, pipeline, containment steel liner, etc.) of pressurized water reactor nuclear power plant. 2 Normative References The following documents are indispensable for the application of this document. For dated references, only the dated editions apply. For undated references, the latest editions (including any amendments) apply. GB/T 223.3 Methods for Chemical Analysis of Iron, Steel and Alloy - The Diantipyryl Methane Phosphomolybdate Gravimetric Method for the Determination of Phosphorus Content GB/T 223.11 Iron Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method (GB/T 223.11-2008, ISO 4937:1986, MOD) GB/T 223.12 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Carbonate Separation - Diphenyl Carbazide Photometric Method for the Determination of Chromium Content GB/T 223.14 Methods for Chemical Analysis of Iron, Steel and Alloy - The N-benzoy-N-phenylhydroxylamine Extraction Photometric Method for the Determination of Vanadium Content GB/T 223.18 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Thiosulfate Separation Iodimetric Method for the Determination of Copper Content GB/T 223.19 Methods for Chemical Analysis of Iron, Steel and Alloy - The Neocuproine-chloroform Extraction Photometric Method for the Determination of Copper Content GB/T 223.23 Methods for Chemical Analysis of Iron, Steel and Alloy - The Dimethylglyoxime Spectrophotometric Method for the Determination of Nickel Content GB/T 223.24 Methods for Chemical Analysis of Iron, Steel and Alloy - The Extraction Separation - The Dimethylglyoxime Spectrophotometric Method for the Determination of Nickel Content GB/T 223.26 Methods for Chemical Analysis of Iron, Steel and Alloy - The Thiocyanate Direct Photometric Method for the Determination of Molybdenum Content GB/T 223.53 Methods for Chemical Analysis of Iron, Steel and Alloy - The Flame Atomic Absorption Spectrophotometric Method for the Determination of Copper Content (GB/T 223.53-1987, eqv ISO/DIS 4943:1986) GB/T 223.54 Methods for Chemical Analysis of Iron, Steel and Alloy - The Flame Atomic Absorption Spectrophotometric Method for the Determination of Nickel Content (GB/T 223.54-1987, eqv ISO/DIS 4940:1986) GB/T 223.58 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Arsenite - Sodium Nitrite Titrimetric Method for the Determination of Manganese Content GB/T 223.59 Methods for Chemical Analysis of Iron, Steel and Alloy - The Reduced Molybdoantimonyl Phosphoric Acid Photometric Method for the Determination of Phosphorus Content GB/T 223.60 Methods for Chemical Analysis of Iron, Steel and Alloy - The Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content GB/T 223.61 Methods for Chemical Analysis of Iron, Steel and Alloy - The Ammonium Phosphomolybdate Volumetric Method for the Determination of Phosphorus Content GB/T 223.62 Methods for Chemical Analysis of Iron, Steel and Alloy - The Butyl Acetate Extraction Photometric Method for the Determination of Phosphorus Content GB/T 223.63 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium (Potassium) Periodate Photometric Method for the Determination of Manganese Content GB/T 223.64 Iron Steel and Alloy - Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method (GB/T 223.64-2008, ISO 10700:1994, IDT) GB/T 223.67 Iron Steel and Alloy - Determination of Sulfur Content - Methylene Blue Spectrophotometric Method (GB/T 223.67-2008, ISO 10701:1994, IDT) GB/T 223.68 Methods for Chemical Analysis of Iron, Steel and Alloy - The Potassium Iodate Titration Method after Combustion in the Pipe Furnace for the Determination of Sulfur Content GB/T 223.72 Methods for Chemical Analysis of Iron, Steel and Alloy - The Alumina Chromatographic Separation - Barium Sulfate Gravimetric Method for the Determination of Sulphur Content GB/T 2650 Impact Test Methods on Welded Joints (GB/T 2650-2008, ISO 9016:2001, IDT) GB/T 2652 Tensile Test Methods on Weld and Deposited Metal (GB/T 2652-2008, ISO 5178:2001, IDT) GB/T 3965 Methods for Determination of Diffusible Hydrogen in Deposited Metal GB/T 4336 Standard Test Method for Spark Discharge Atomic Emission - Spectrometric Analysis of Carbon and Low-alloy Steel (Routine Method) GB/T 4338 Metallic Materials - Tensile Testing at Elevated Temperature (GB/T 4338-2006, ISO 783:1999, MOD) GB/T 5117 Carbon Steel Covered Electrodes GB/T 20123 Steel and Iron - Determination of Total Carbon and Sulfur Content - Infrared Absorption Method after Combustion in an Induction Furnace (GB/T 20123-2006, ISO 15350:2000, IDT) EJ/T l027 Welding Code for Mechanical Components of PWR Nuclear Islands NB/T 20003.3 Non-destructive Testing for Mechanical Components in Nuclear Island of Nuclear Power Plants - Part 3: Radiographic Testing 3 Models Electrode models include E4315, E5015 and E5018. Generally, E4315 is used for the welding of 420MPa carbon steel; E5015 and E5018 are used for the welding of 490MPa carbon steel.

Contents of NB/T 20009.1-2010

Foreword I 1 Scope 2 Normative References 3 Models 4 Technical Requirements 4.1 Dimension 4.2 Coating 4.3 T-fillet Weld 4.4 Chemical Composition of Deposited Metal 4.5 Mechanical Performance of Deposited Metal (As-welded or/and Simulated Stress-relief Heat Treatment State) 4.6 Radiographic Testing for Weld 4.7 Water Content of Coating 4.8 Diffusible Hydrogen Content of Deposited Metal 5 Test Methods 5.1 T-fillet Weld Test 5.2 Chemical Compositions and Mechanical Performance Test of Deposited Metal 5.3 Radiographic Testing for Weld 5.4 Determination of Water Content of Coating 5.5 Determination of Diffusible Hydrogen Content in Deposited Metal 6 Inspection Rules 6.1 Batch Division 6.2 Sampling Method for Electrode 6.3 Acceptance 6.4 Re-inspection 7 Packaging, Marking and Quality Certificate 7.1 Packaging 7.2 Marking 7.3 Quality Certificate