GB/T 13296-2023 Seamless stainless steel tubes for boiler and heat exchanger
1 Scope
This document specifies the classification and code, order information, dimension, shape, weight and permissible deviation, technical requirements, test methods, inspection rules, and packaging, marking and quality certification of seamless stainless steel tubes for boilers and heat exchangers.
It is applicable to seamless stainless steel tubes for boilers and heat exchangers (hereinafter referred to as "steel tubes").
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.11 Iron, steel and alloy - Determination of chromium content - Visual titration or potentiometric titration method
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 Iron, steel and alloy - Determination of nickel content - The dimethylglyoxime spectrophotometric method
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 determination of nitrogen content after distillation separation
GB/T 223.37 Iron, steel and alloy - Determination of nitrogen content - Indophenol blue spectrophotometric method after distillation separation
GB/T 223.40 Iron, steel and alloy - Determination of niobium content by the sulphochlorophenol S spectrophotometric method
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 223.63 Iron, steel and alloy - Determination of manganese content - Sodium (potassium) periodate spectrophotometric method
GB/T 223.84 Steel and alloy - Determination of titanium content - Diantipyrylmethane spectrophotometric 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
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 231.1 Metallic materials - Brinell hardness test - Part 1: Test method
GB/T 241 Metal materials - Tube - Hydrostatic pressure test
GB/T 242 Metallic materials - Tube - Drift expanding test
GB/T 246 Metallic materials - Tube - Flattening test
GB/T 2102 Acceptance, packaging, marking and quality certification for steel tubular products
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 6394 Determination of estimating the average grain size of metal
GB/T 7735-2016 Automated eddy current testing of seamless and welded (except submerged arc-welded) steel tubes for detection of imperfections
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 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 30062 Terminology of steel pipes and tubes
YB/T 4395 Steel - Determination of molybdenum, niobium and tungsten contents - Inductively coupled plasma atomic emission spectrometric method
YB/T 4396 Stainless steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 30062 apply.
4 Classification and code
4.1 Steel tubes are classified into two categories according to product manufacturing methods. The categories and corresponding codes are as follows:
a) Hot-rolled (extruded) steel tubes W-H;
b) Cold drawn (rolled) steel tubes W-C.
4.2 The following codes are applicable to this document:
D Nominal outside diameter (mm);
S Nominal wall thickness (mm);
Smin Minimum wall thickness (mm);
Sc Average wall thickness (the average of the maximum and minimum wall thicknesses calculated as per the minimum wall thickness and its permissible deviation, mm).
5 Order information
Contracts or orders for purchasing steel tubes based on this document shall include but not be limited to the following:
a) Serial number of this document;
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and code
5 Order information
6 Dimension, shape, weight and permissible deviation
7 Technical requirements
8 Test methods
9 Inspection rules
