GB/T 21833.1-2020
Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1: Tubes for heat exchanger (English Version)

Standard No.

GB/T 21833.1-2020

Language

Chinese, Available in English version

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 21833.1-2020

Replace

GB/T 21833-2008

Scope

This part of GB/T21833 specifies the ordering content, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificates of austenitic-ferritic duplex stainless steel seamless steel pipes for heat exchangers. . This section applies to austenitic-ferritic duplex stainless steel seamless steel pipes (hereinafter referred to as steel pipes) for heat exchangers.

GB/T 21833.1-2020 Referenced Document

• GB/T 11170 Stainless steel .Determination of multi-element contents.Spark discharge atomic emission spectrometric method (Routine method)
• GB/T 17395 Dimensions, shapes, masses and tolerances of seamless steel tubes
• GB/T 17897 Corrosion of metals and alloys.Corrosion test for pitting corrosion resistance of stainless steels in the ferric chloride solution
• GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
• 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/T 20124 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)
• GB/T 2102 Acceptance, packaging, marking and quality certification for steel tubular products*， 2022-10-14 Update
• GB/T 222 Permissible tolerances for chemical composition of steel products
• 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 223.26 Iron,steel and alloy.Determination of molybdenum content.The thiocyanate spectrophotometric method
• 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 223.36 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 223.59 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 223.64 Iron,steel and alloy.Determination of manganese content.Flame atomic absorption spectrometric method
• GB/T 223.85 Steel and iron.Determination of sulfur content.Infrared absorption method after combustion in an induction furnace
• GB/T 223.86 Steel and iron.Determination of total carbon content.Infrared absorption method after combustion in an induction furnace
• GB/T 228.1 Metallic materials—Tensile testing—Part 1: Method of test at room temperature*， 2021-12-31 Update
• GB/T 228.2 Metallic materials.Tensile testing.Part 2:Method of test at elevated temperature
• GB/T 230.1 Metallic materials.Rockwell hardness test.Part 1:Test method
• GB/T 241 Metal materials-Tube.Hydrostatic pressure test
• GB/T 242 Metal materials.Tube.Drift-expending test
• GB/T 246 Metallic materials—Tube—Flattening test
• GB/T 2975 Steel and steel products.Location and preparation of samples and test pieces for mechanical testing
• GB/T 4334-2020 Corrosion of metals and alloys－Test methods for intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels
• GB/T 4340.1 Metallic materials.Vickers hardness test.Part 1:Test method
• GB/T 5777-2019 Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections
• GB/T 7735-2016 Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imperfections

GB/T 21833.1-2020 history

• 2020 GB/T 21833.1-2020 Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1: Tubes for heat exchanger
• 2008 GB/T 21833-2008 Austenitic-Ferritic(duplex)grade stainless steel seamless tubes and pipes

GB/T 21833.1-2020 Seamless austenitic-ferritic (duplex) stainless steel tubes and pipes—Part 1: Tubes for heat exchanger has been changed from GB/T 21833-2008 Austenitic-Ferritic(duplex)grade stainless steel seamless tubes and pipes.

GB/T 21833.1-2020 -All Parts