GB/T 38681-2020
Seamless corrosion resistant alloy pipes and tubes for industrial furnace (English Version)

Standard No.

GB/T 38681-2020

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 38681-2020

Scope

This standard specifies the classification and code, order content, shape, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of corrosion-resistant alloy steel tubes for industrial furnaces. This standard is applicable to iron-based and name-based corrosion-resistant alloy seamless pipes (hereinafter referred to as alloy pipes) for industrial furnaces in petroleum refining, chemical industry, polysilicon and other industries with a nominal outer diameter not greater than 406 mm and a nominal wall thickness not greater than 60 mm. ).

GB/T 38681-2020 Referenced Document

• GB/T 10561 Standard grading chart microscopic examination method for determination of non-metallic inclusion content in steel*， 2023-05-23 Update
• GB/T 11170 Stainless steel .Determination of multi-element contents.Spark discharge atomic emission spectrometric method (Routine method)
• GB/T 11261 Steel and lron - Determination of oxygen content - The pulse heating inert gas fusion-infra-red absorption method
• GB/T 15007 Designations of corrosion resistant alloy
• GB/T 15260 Test method for intergranular corrosion of nickel base alloy
• GB/T 17395 Dimensions, shapes, masses and tolerances of seamless steel tubes
• 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 2102 Acceptance, packaging, marking and quality certification for steel tubular products*， 2022-10-14 Update
• GB/T 223.11 Determination of chromium content in iron, steel and alloy by visual titration or potentiometric titration
• GB/T 223.17 Methods for chemical analysis of iron,steel and alloy--The diantipyrylmethane photometric method for the determination of titanium content
• 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 223.25 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 223.5 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate 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 223.63 Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method*， 2022-07-11 Update
• GB/T 223.65 Steel, iron and alloy.Determination of cobalt content.Flame atomic absorption spectrometric method
• GB/T 223.79 Iron and steel-Determination of multi-element contents-X-ray fluorescence spectrometry (Routine method)
• GB/T 223.8 Methods for chemical analysis of iron,steel and alloy The sodium fluoride separation-EDTA titration method for the determination of aluminium content
• GB/T 223.85 Steel and iron.Determination of sulfur content.Infrared absorption method after combustion in an induction furnace
• GB/T 223.9 Iron,steel and alloy.Determination of aluminium content.Chrome azurol S photometric method
• 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 2975 Steel and steel products.Location and preparation of samples and test pieces for mechanical testing
• GB/T 38681 Seamless corrosion resistant alloy pipes and tubes for industrial furnace
• GB/T 5777 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 6394 Determination of estimating the average grain size of metal
• GB/T 7735 Automatic eddy current testing for flaws in seamless and welded (except submerged arc welded) steel pipes Amendment No. 1*， 2021-04-30 Update
• NB/T 47013.5 Nondestructive testing of pressure equipments.Part 5: Penetrant testing
• YB/T 4395 Steel.Determination of molybdenum, niobium and tungsten contents.Inductively coupled plasma atomic emission spectrometric method

GB/T 38681-2020 history

• 2020 GB/T 38681-2020 Seamless corrosion resistant alloy pipes and tubes for industrial furnace