Detail of NB/T 20009.9-2013

Introduction of NB/T 20009.9-2013

1 Scope This standard specifies the models, technical requirements, test methods, inspection rules and etc. of carbon steel wires and fluxes for submerged arc welding of Class 1, 2, 3 components. This part is applicable to carbon steel wires and fluxes for submerged arc welding of Class 1, 2, 3 components of pressurized water reactor nuclear power plant. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies. GB/T 223.3 Methods for Chemical Analysis of Iron, Steel and Alloy-The Diantipyrylmethane Phosphomolybdate Gravimetric Method for the Determination of Phosphorus Content GB/T 223.5 Steel and Iron - Determination of Acid-soluble Silicon and Total Silicon Content - Reduced Molybdosilicate Spectrophotometric Method (GB/T 223.5-2008, ISO 4829-1:1986, ISO 4829-2:1988, MOD) GB/T 223.18 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Thiosulfate Separation Isodiametric 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 223.53 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 223.58 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 Iron, Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method 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 223.69 Iron Steel and Alloy - Determination of Carbon Contents - Gas-volumetric Method after Combustion in the Pipe Furnace GB/T 223.71 "Methods for Chemical Analysis of Iron, Steel and Alloy - The Gravimetric Method after Combustion in the Pipe Furnace for the Determination of Carbon Content" GB/T 223.72 Iron steel and alloy - Determination of sulfur content - Gravimetric method GB/T 223.79 Iron and Steel - Determination of Multi-element Contents - X-ray Fluorescence Spectrometry (Routine Method) GB/T 223.85 Steel and Iron - Determination of Sulfur Content - Infrared Absorption Method after Combustion in an Induction Furnace (GB/T 223.85-2009, ISO 4935:1989, IDT) GB/T 223.86 Steel and Iron - Determination of Total Carbon Content - Infrared Absorption Method after Combustion in an Induction Furnace (GB/T 223.86-2009, ISO 9556:1989, IDT) 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 5293 Carbon Steel Electrodes and Fluxes for Submerged Arc Welding GB/T 20123 Steel and Iron - Determination of Total Carbon and Sulfur Content Infrared Absorption Method after Combustion in an Induction Furnace (Routine Method) (GB/T20123-2006, ISO 15350:2000, IDT) GB/T 25774.1 Test Methods for Welding Consumables - Part 1: Preparation and Testing of Deposited Metal Specimens for Mechanical Properties in Steel, Nickel and Nickel Alloys (GB/T25774.1-2010, ISO 15792-1:2000, MOD) GB/T 25775 Technical Delivery Conditions for Welding Consumables - Type of Product Dimensions Tolerances and Markings (GB/T 25775-2010, ISO 544:2003, MOD) GB/T 25778 Procurement Guidelines for Welding Consumables (GB/T 25778-2010, ISO 14344:2010, MOD) NB/T 20002.4 Welding Code for Mechanical Components of PWR Nuclear Islands - Part 4: Assessment of Welding Filler Material NB/T 20003.3 Non-destructive Testing for Mechanical Components in Nuclear Island of Nuclear Power Plants - Part 3: Radiographic Testing 3 Models Models are classified according to the mechanical performance and heat treatment state of flux-wire combined deposited metal in this part. The flux-wire combination is expressed with its code. The complete model is "Fxxx-Exxx"; thereinto, the initial "F" expresses flux; the first digit following "F" expresses the minimum tensile strength of deposited metal; the subsequent letters express the state of test piece; "A" expresses as welded; "P" expresses post-weld heat treatment state; the third digit expresses the lowest test temperature of deposited metal where the impact energy is not less than 27J; those following "-" express the category or designation of the adopted welding wire. In this part, welding wire models include EM12K and EH12K, equivalent to EM12K and EH12K in AWS 5.17. The welding material manufacturer shall assess the welding material in this part according to the requirements of NB/T 20002.4. 4 Technical Requirements

Contents of NB/T 20009.9-2013

Foreword I 1 Scope 2 Normative References 3 Models 4 Technical Requirements 5 Test Methods 6 Inspection Rules 7 Packaging, Marking and Quality Certificate