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GB/T 41157.3-2022: Fasteners for nuclear power plants - Part 3: Bolts, screws and studs made of corrosion-resistant stainless steel
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| GB/T 41157.3-2022 | English | 659 |
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Fasteners for nuclear power plants - Part 3: Bolts, screws and studs made of corrosion-resistant stainless steel
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GB/T 41157.3-2022
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Basic data | Standard ID | GB/T 41157.3-2022 (GB/T41157.3-2022) | | Description (Translated English) | Fasteners for nuclear power plants - Part 3: Bolts, screws and studs made of corrosion-resistant stainless steel | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J13 | | Word Count Estimation | 33,394 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41157.3-2022: Fasteners for nuclear power plants - Part 3: Bolts, screws and studs made of corrosion-resistant stainless steel
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Fasteners for nuclear power plants - Part 3.Bolts, screws and studs made of corrosion-resistant stainless steel
ICS 21.060.10
CCSJ13
National Standards of People's Republic of China
Fasteners for nuclear power plants
Part 3.Stainless steel bolts, screws and studs
Published on 2022-03-09
2022-10-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Code 2
5 Technical requirements 2
5.1 Materials 2
5.2 Heat treatment 4
5.3 Mechanical properties 4
5.4 Threads and tolerances 16
5.5 Dimensions and tolerances 16
5.6 Surface defects 16
5.7 NDT 16
5.8 Finishing 16
5.9 Grain size 16
6 Applicability of test methods and inspections 16
6.1 Applicability of the test method 16
6.2 Fasteners with full load-carrying capacity 16
6.3 Manufacturer's Control 17
6.4 Supplier Control 17
6.5 Purchaser's Control 17
6.6 Delivery of test results 17
7 Test methods 17
7.1 Finished tensile test 17
7.2 Wedge load test 22
7.3 Impact test 23
7.4 Hardness test 24
7.5 Inspection of Surface Defects 25
7.6 NDT 25
7.7 Grain size check 25
8 Logo and packaging25
8.1 Signs 25
8.2 Packaging 26
Reference 27
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 of Standardization Documents"
drafted.
This document is part 3 of GB/T 41157 "Fasteners for Nuclear Power Plants". GB/T 41157 has published the following parts.
--- Part 1.Alloy steel bolts, screws and studs;
--- Part 2.Carbon steel and alloy steel nuts;
--- Part 3.Stainless steel bolts, screws and studs;
--- Part 4.Stainless steel nuts;
--- Part 5.Acceptance inspection.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Machinery Industry Federation.
This document is under the jurisdiction of the National Fastener Standardization Technical Committee (SAC/TC85).
This document is drafted by. China Machinery Productivity Promotion Center, Aozhan Industrial Co., Ltd., Dingxi High Strength Fastener Co., Ltd., Zhejiang
Dongming Stainless Steel Products Co., Ltd., Shandong Gaoqiang Fastener Co., Ltd., Shaoxing Shannai High Pressure Fastener Co., Ltd., Hebei Wuweihang
Electric Technology Co., Ltd., Shanghai Qunli Fastener Manufacturing Co., Ltd., Wuxi Tengchang Hardware Products Co., Ltd., Zhejiang Haili Co., Ltd.
Company, Jiangsu Baide Special Alloy Co., Ltd., Jiangsu Xinxunda Stainless Steel Products Co., Ltd., Shandong Tengda Fastening Technology Co., Ltd.,
Machinery Industry General Parts Product Quality Supervision and Testing Center, Zhejiang National Inspection and Testing Technology Co., Ltd., Nuclear Industry Standardization Institute,
Tsinghua University, China Nuclear Power Engineering Co., Ltd., China General Nuclear Power Engineering Co., Ltd., China General Nuclear Power Research Institute Co., Ltd., China Nuclear Power Research and Design
Institute, Shanghai Nuclear Engineering Research and Design Institute Co., Ltd., Suzhou Thermal Engineering Research Institute Co., Ltd., Nanjing Fubell Hardware Products Co., Ltd., Guizhou Airlines
Tian Jinggong Manufacturing Co., Ltd., Shanghai Yaluo Precision Fastening Technology Co., Ltd., Wenzhou Xinde Electric Power Parts Co., Ltd.
This document is interpreted by the National Fastener Standardization Technical Committee.
Introduction
Fasteners are widely used in the safety systems and equipment of nuclear power plants, and undertake functions such as pressure sealing, component connection and support and fixation.
Quantity and performance play an important role in nuclear power plant safety systems and equipment performing nuclear safety functions. However, in nuclear power plant construction and equipment manufacturing
During the supervision process, it was found that there are weak links in the design, procurement, manufacture, installation and acceptance of nuclear power fasteners. GB/T 41157 "Nuclear Power
Factory Fasteners" aims to standardize the technical requirements and test methods for fasteners used in nuclear power plants, and consists of the following five parts.
--- Part 1.Alloy steel bolts, screws and studs;
--- Part 2.Carbon steel and alloy steel nuts;
--- Part 3.Stainless steel bolts, screws and studs;
--- Part 4.Stainless steel nuts;
--- Part 5.Acceptance inspection.
Fasteners for nuclear power plants
Part 3.Stainless steel bolts, screws and studs
1 Scope
This document specifies grades 1, 2, and 3 stainless steel bolts, screws and studs for pressurized water reactor nuclear power plants (hereinafter referred to as grades 1, 2, and 3 stainless steel bolts,
screws and studs), test methods and suitability for inspection, test methods and marking and packaging at room and elevated temperatures.
Note 1.The product dimensions are specified in the corresponding product standards or drawings.
This document applies to grades 1, 2 and 3 stainless steel bolts, screws and studs.
a) Manufactured from austenitic stainless steel (solution state and cold work hardening state), martensitic stainless steel or precipitation hardening stainless steel;
b) Ordinary threads complying with GB/T 192 and GB/T 196;
c) Coarse thread M5~M64, fine thread M8×1~M64×4;
d) The diameter and pitch combination specified in GB/T 193;
e) Comply with the tolerances specified in GB/T 197 and GB/T 9145.
This document does not apply to set screws and similar non-tension threaded fasteners (see GB/T 3098.3).
This document does not specify the following performance requirements.
--- Weldability;
--- Corrosion resistance;
--- Shear stress resistance;
---Torque-clamping force performance;
---Fatigue resistance.
This document may also be used for reference to grade 1, 2 and 3 stainless steel bolts, screws and studs used in other reactor-type nuclear power plants.
Note 2.The applicable maximum operating temperature for fasteners produced in accordance with this document is 370 °C. When the operating temperature exceeds 370°C, it is recommended that the user consult the relevant experts
consult.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 2 Fasteners Externally Threaded Parts Ends
GB/T 196 Basic dimensions of common thread
GB/T 197 Ordinary thread tolerance
GB/T 228.1 Tensile Test of Metallic Materials Part 1.Test Method at Room Temperature
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 230.1 Rockwell hardness test of metallic materials - Part 1.Test method
GB/T 231.1 Brinell hardness test for metallic materials - Part 1.Test method
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