Detail of GB/T 713.2-2023

Introduction of GB/T 713.2-2023

GB/T 713.2-2023 Steel plate, sheet and strip for pressure equipments - Part 2: Non-alloy and alloy steel with specified temperature properties 1 Scope This document specifies the designation expression, order information, dimension, shape, weight, technical requirements, test method, inspection rules, packaging, marking and quality certificate of non-alloy and alloy steel plates, sheets and strips for pressure equipment with specified temperature properties for pressure equipment. This document is applicable to the manufacture of steel strips and coil cutting steel plates and sheets with a service temperature of not less than -20°C and a thickness of not more than 25.4 mm for pressure equipment as well as single rolled steel plates with a thickness of 3 mm ~ 250 mm (hereinafter referred to as "steel plates"). 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 223.3 Methods for chemical analysis of iron, steel and alloy - The diantipyryl methane phosphomolybdate gravimetric method for the determination of phosphorus content GB/T 223.9 Iron, steel and alloy - Determination of aluminium content - Chrome azurol S photometric method GB/T 223.11 Iron, steel and alloy - Determination of chromium content - Visual titration or potentiometric titration method GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content GB/T 223.14 Methods for chemical analysis of iron, steel and alloy - The N-benzoy-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content 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 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 223.26 Iron, steel and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method GB/T 223.31 Iron, steel and alloy - Determination of arsenic content - Distillation-molybdenum blue spectrophotometric method 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 223.47 Methods for chemical analysis of iron, steel and alloy - The carrier precipitation-molybdenum blue potometric method for the determination of antimony content GB/T 223.50 Methods for chemical analysis of iron, steel and alloy - The phenylfluorone-CTMAB direct photometric method for the determination of tin 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 223.60 Methods for chemical analysis of iron, steel and alloy - The perchloric acid dehydration gravimetric method for the determination of silicon content GB/T 223.62 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 GB/T 223.67 Iron, steel and alloy - Determination of sulfur content - Methylene blue spectrophotometric 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 223.69 Iron, steel and alloy - Determination of carbon contents - Gas-volumetric method after combustion in the pipe furnace GB/T 223.75 Iron, steel and alloy - Determination of boron content - Methanol distillation-curcumin photometric method GB/T 223.76 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrometric method for the determination of vanadium content GB/T 223.77 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrometric method for the determination of calcium content GB/T 223.80 Iron, steel and alloy - Determination of trace bismuth and arsenic contents - Hydride generation-atomic fluorescence spectrometric method GB/T 223.82 Steel and iron - Determination of hydrogen content - Thermal conductivity/infrared method after fusion under inert gas 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 229 Metallic materials - Charpy pendulum impact test method GB/T 232 Metallic materials - Bend testing method GB/T 713.1 Steel plate, sheet and strip for pressure equipments - Part 1: General requirements GB/T 2975 Steel and steel products - Location and preparation of samples and test pieces for mechanical testing GB/T 4336 Carbon and low-alloy steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (routine method) GB/T 5313 Steel plates with through-thickness characteristics GB/T 6803 Test method for drop-weight test to determine nil-ductility transition temperature of ferritic steels GB/T 8650 Evaluation of pipeline and pressure vessel steels for resistance to hydrogen-induced cracking 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 20125 Low-alloy steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method NB/T 47013.3 Nondestructive testing of pressure equipments - Part 3: Ultrasonic testing 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 713.1 apply. 4 Designation expression The designations of carbon steel and low-alloy high-strength steel are indicated by the yield strength value and the first letter of the Chinese pinyin of the word "Qu" and the first letter of the Chinese pinyin of the word "Rong" for pressure vessels, such as Q345R. The designations of molybdenum steel and chrome-molybdenum steel are expressed by the average carbon content, letters of alloy elements and the first letter of Chinese pinyin for "vessel" of pressure vessels, such as 15CrMoR. 5 Order information The order information of steel plates shall meet the requirements of GB/T 713.1. 6 Dimension, shape and weight The dimension, shape and weight of steel plates shall meet those specified in GB/T 713.1. 7 Technical requirements 7.1 Designation and chemical composition 7.1.1 Designation and chemical composition (melting analysis) of steel shall conform to Table 1.

Contents of GB/T 713.2-2023

Foreword i Introduction iii 1 Scope 2 Normative references 3 Terms and definitions 4 Designation expression 5 Order information 6 Dimension, shape and weight 7 Technical requirements 8 Test methods 9 Inspection rules 10 Packaging, marking and quality certification Annex A (Informative) Comparison between similar designations in this document and relevant foreign standards Annex B (Normative) Chromium molybdenum alloy steel plates for hydrogen service Annex C (Normative) Test and evaluation method for hydrogen induced cracking (HIC) resistance