NB/T 20007.28-2014 Stainless steel for pressurized water reactor nuclear power plants.Part 28: Class 3 pressure-retaining austenitic-ferritic (duplex) stainless steel castings for seawater application (English Version)
This part specifies the technical requirements for manufacturing, chemical composition, mechanical properties, test methods, non-destructive testing and other technical requirements for grade 3 seawater corrosion resis ant austenitic-ferritic duplex stainless steel pressure castings for pressurized water reactor nuclear power plants. This section applies to grade 3 seawater corrosion-resis ant austenitic-ferritic duplex stainless steel pressure castings for pressurized water reactor nuclear power plants, including ZG03Cr22Ni6Mo3N, ZG04Cr26Ni5Cu3Mo2N, ZG03Cr25Ni7Mo5N and ZG03Cr25Ni8Mo4CuWN.
NB/T 20007.28-2014 Referenced Document
GB/T 223.11 Determination of chromium content in iron, steel and alloy by visual titration or potentiometric titration
GB/T 223.18 Methods for chemical analysis of iron steel and alloy.The sodium thiosulfate separation iodimetric method for the determination of cupper 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 223.25 Methods for chemical analysis of iron, steel and alloy.The dimethylglyoxime gravimetric method for the determination of nickel content
GB/T 223.28 Methods for chemical analysis of iron,steel and alloy--The α-benzoinoxime gravimetric method for the determination of molybdenum content
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 223.36 Methods for chemical analysis of iron, steel and alloy. The neutral titration method for the determinaion of nitrogen content after distillation separation
GB/T 223.43 Iron,steel and alloy.Determination of tungsten content.Gravimetric method and spectrophotometric method
GB/T 223.5 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate spectrophotometric method
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 spectrophotometic method and antimony phosphomolybdate blue spectruophotometric 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 Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method*， 2022-07-11 Update
GB/T 223.64 Iron,steel and alloy.Determination of manganese content.Flame atomic absorption spectrometric method
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 Iron,steel and alloy.Determination of sulfur content.Gravimetric method
GB/T 223.75 Iron,steel and alloy.Determination of boron content. Methanol distillation-curcumin photometric method
GB/T 223.78 Methods for chemical analysis of iron,steel and alloy-Curcumin spectrophotometric method for the determination of boron content
GB/T 223.81 Iron,steel and alloy-Determination of total aluminum and total aluminum and total boron contents-Microwave digestion-inductively coupled plasma mass spectrometric method
NB/T 20007.28-2014 history
2014NB/T 20007.28-2014 Stainless steel for pressurized water reactor nuclear power plants.Part 28: Class 3 pressure-retaining austenitic-ferritic (duplex) stainless steel castings for seawater application