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GB/T 4732.6-2024: Pressure vessels design by analysis - Part 6: Fabrication, inspection and testing and acceptance
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GB/T 4732.6-2024: Pressure vessels design by analysis - Part 6: Fabrication, inspection and testing and acceptance

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ICS 23.020.30 CCSJ74 National Standard of the People's Republic of China Pressure vessel analysis and design Part 6.Manufacturing, inspection and acceptance Released on 2024-07-24 2024-07-24 implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 General Requirements 3 5 Material re-inspection, segmentation and marker transplantation 5 6 Cold and hot forming and assembly 6 7 Welding 13 8 Heat treatment 16 9 Test pieces and specimens 21 10 Nondestructive Testing 23 11 Pressure test and leakage test 25 12 Hot air cycle test 28 13 Pressure vessel factory requirements 29 Appendix A (Normative) Additional requirements for the manufacture, inspection and acceptance of forged and welded pressure vessels 31 Appendix B (Normative) Additional requirements for the manufacture, inspection and acceptance of sleeve pressure vessels 33 Appendix C (Normative) Additional requirements for the manufacture, inspection and acceptance of multi-layer wrapped pressure vessels 35 Appendix D (Normative) Additional requirements for the manufacture, inspection and acceptance of steel strip wound pressure vessels 42

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is Part 6 of GB/T 4732 "Analysis and Design of Pressure Vessels". GB/T 4732 has been published in the following parts. --- Part 1.General requirements; --- Part 2.Materials; --- Part 3.Formula method; --- Part 4.Stress classification method; --- Part 5.Elastic-plastic analysis methods; --- Part 6.Manufacturing, inspection and acceptance. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Technical Committee for Standardization of Boilers and Pressure Vessels (SAC/TC262). This document was drafted by. Hefei General Machinery Research Institute Co., Ltd., China National Machinery Industry Corporation, China Special Equipment Testing Research Institute, Erzhong (Deyang) Heavy Equipment Co., Ltd., Sinopec Engineering Construction Co., Ltd., Sinopec Nanjing Chemical Machinery Co., Ltd., Zhejiang University, China Huanqiu Engineering Corporation Beijing Branch, First Heavy Industries Group Dalian Engineering Technology Co., Ltd., Dalian Jinzhou Heavy Machinery Group Group Co., Ltd., Jiangsu Special Equipment Safety Supervision and Inspection Institute. The main drafters of this document are. Cui Jun, Chen Xuedong, Yang Guoyi, Wang Yingjun, Chen Zhiwei, Feng Qingxiao, Yao Zuoquan, Han Bing, Chen Zhiping, Yue Guoyin, Zhao Jingyu, Liu Jing, Miao Chunsheng, Fang Wunong, Huang Yongli, Xie Guoshan.

Introduction

GB/T 4732 "Analysis and Design of Pressure Vessels" provides the requirements for the construction of pressure vessels according to the analysis and design method. GB/T 150 is based on The rule design concept puts forward the requirements for the construction of pressure vessels. Pressure vessel design and manufacturing units can choose two construction methods according to the specific design conditions. One of the standards implements the construction of pressure vessels. GB/T 4732 consists of 6 parts. --- Part 1.General requirements. The purpose is to provide general requirements for pressure vessels built according to analysis and design, including relevant management requirements. Requirements, common terms and definitions, and basic requirements shared by other parts of GB/T 4732. --- Part 2.Materials. The purpose is to give the relevant requirements and material properties of steel materials in pressure vessels built according to analysis and design. Energy data, etc. --- Part 3.Formula method. The purpose is to give typical pressure components and structural design requirements of pressure vessels built according to analytical design. The thickness calculation formulas for commonly used container parts designed by the formula method are specifically given. GB/T 4732.3 can be used as The design basis of GB/T 4732.4 and GB/T 4732.5 can also be simplified and completed according to GB/T 4732.3. Analysis design. --- Part 4.Stress classification method. The purpose is to give the stress classification method used in pressure vessels built according to analysis and design. Design related regulations. --- Part 5.Elastic-plastic analysis method. The purpose is to give the elastic-plastic analysis method used in pressure vessels built according to analytical design. Relevant provisions for design in accordance with the law. --- Part 6.Manufacturing, inspection and acceptance. The purpose is to give the structural types of pressure vessels built according to analysis and design. Manufacturing, inspection and acceptance requirements for devices. GB/T 4732 includes the pressure vessel construction process based on the analysis and design method (i.e. materials, design, manufacturing, inspection, testing and verification). GB/T 4732 does not need to and cannot cover all the technical requirements and special prohibition regulations that need to be followed in the collection work. Therefore, under the premise of meeting the basic safety requirements stipulated in the safety technical specifications, there is no restriction on There is no special mention of technical content in GB/T 4732.GB/T 4732 cannot be used as a technical manual for the construction of specific pressure vessels, nor can it be used as a technical manual for the construction of specific pressure vessels. Alternative training, engineering experience and engineering evaluation. An engineering evaluation is a review of a specific Technical evaluation of products. Engineering evaluation needs to comply with the relevant technical requirements of GB/T 4732. GB/T 4732 does not restrict the use of other advanced technical methods in actual engineering construction, but engineering and technical personnel use advanced technical methods. Reliable judgment is needed when applying the law to ensure that it meets the requirements of GB/T 4732. GB/T 4732 neither requires nor restricts designers to use computer programs to analyze and design pressure vessels, but the use of computers is When analyzing and designing the program, in addition to meeting the requirements of GB/T 4732, it is also necessary to confirm. --- Reasonableness of the technical assumptions in the adopted procedures; --- The applicability of the adopted procedures to the design content; ---The correctness of the program input parameters and output results used for engineering design. When performing stress analysis and design calculations, you can choose or not to use GB/T 4732.3 as the design basis, and then use GB/T 4732.4 or GB/T 4732.5 to conduct specific design calculations to determine whether the design calculation requirements for preventing structural failure are met. Component thickness or local structural dimensions. When GB/T 4732.4 or GB/T 4732.5 is used independently as the design basis, there is no need to satisfy. Pressure vessel analysis and design Part 6.Manufacturing, inspection and acceptance

1 Scope

This document specifies the requirements for the manufacture, inspection and acceptance of steel pressure vessels using analytical design. This document is applicable to steel pressure vessels and composite plate pressure vessels and lined pressure vessels using nickel and nickel alloys as cladding, lining or cladding layer. Manufacture, inspection and acceptance of non-alloy steel, low alloy steel or high alloy steel base layers in pressure vessels and pressure vessels with cladding layers. The pressure vessels to which this document applies are single-layer welded (including pipe-type cylinder) pressure vessels, forged welded pressure vessels, and sleeve pressure vessels. Pressure vessels, multi-layer wrapped (including multi-layer cylinder segment wrapped, multi-layer overall wrapped) pressure vessels and steel strip wound pressure vessels.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 150.1 Pressure vessels Part 1.General requirements GB/T 150.2 Pressure Vessels Part 2.Materials GB/T 150.3 Pressure Vessels Part 3.Design GB/T 150.4 Pressure vessels Part 4.Manufacturing, inspection and acceptance GB/T 151 Heat Exchanger GB/T 196 Basic dimensions of common threads GB/T 197 Common thread tolerances GB/T 228.1 Tensile test of metallic materials Part 1.Room temperature test method GB/T 228.2 Tensile test of metallic materials Part 2.High temperature test method GB/T 229 Charpy pendulum impact test method for metallic materials GB/T 232 Metal material bending test method GB/T 1804 General tolerances Tolerances of linear and angular dimensions without tolerance indication GB/T 1954 Method for measuring ferrite content in chromium-nickel austenitic stainless steel welds GB/T 2039 Uniaxial tension creep test method for metallic materials GB/T 3965 Determination of diffusible hydrogen in deposited metal GB/T 4732.1 Analysis and design of pressure vessels Part 1.General requirements GB/T 4732.2 Analysis and design of pressure vessels Part 2.Materials GB/T 4732.3 Analysis and design of pressure vessels Part 3.Formula method GB/T 6396 Test methods for mechanical and process properties of composite steel plates GB/T 8923.1 Surface preparation of steel before coating - Visual assessment of surface cleanliness - Part 1.Uncoated steel Rust level and treatment level of steel surface after surface and complete removal of existing coatings GB/T 12337 Steel spherical storage tanks GB/T 16749 Pressure vessel corrugated expansion joints GB/T 21433 Test for intergranular corrosion susceptibility of stainless steel pressure vessels ...