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GB/T 41157-2022: General principle of Konjac gel food quality
Status: Obsolete GB/T 41157: Evolution and historical versions
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General principle of Konjac gel food quality
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GB/T 41157-2022
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| GB/T 41157.1-2022 | English | 619 |
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Fasteners for nuclear power plants - Part 1: Bolts, screws and studs made of alloy steel
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GB/T 41157.1-2022
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PDF similar to GB/T 41157-2022
Basic data | Standard ID | GB/T 41157-2022 (GB/T41157-2022) | | Description (Translated English) | General principle of Konjac gel food quality | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | X11 | | Word Count Estimation | 6,662 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41157.1-2022: Fasteners for nuclear power plants - Part 1: Bolts, screws and studs made of alloy 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 1.Bolts, screws and studs made of alloy steel
ICS 21.060.10
CCSJ13
National Standards of People's Republic of China
Fasteners for nuclear power plants
Part 1.Alloy 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 I
Introduction II
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Code 2
5 Technical requirements 2
6 Applicability of test methods and inspections 9
7 Test methods 12
8 Logo and packaging24
Reference 26
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 1 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 National Machinery Productivity Promotion Center, Dingxi High Strength Fastener Co., Ltd., Zhoushan Zhengyuan Standard Parts Co., Ltd.
Company, Shaoxing Shannai High Pressure Fastener Co., Ltd., Jinyi Industrial Co., Ltd., Zhejiang Dite High Strength Bolt Co., Ltd., Shanghai Qunli
Fastener Manufacturing Co., Ltd., Shandong High Strength Fastener Co., Ltd., Zhejiang Haili Co., Ltd., Shanghai High Strength Bolt Factory Co., Ltd.,
Qifeng Precision Technology Co., Ltd., Machinery Industry General Parts Product Quality Supervision and Testing Center, Zhejiang National Inspection and Testing Technology Co., Ltd.
The company, the Institute of Nuclear Industry Standardization, Tsinghua University, China Nuclear Power Engineering Co., Ltd., China General Nuclear Power Engineering Co., Ltd., and China General Nuclear Power Research Institute have
Co., Ltd., China Nuclear Power Research and Design Institute, Shanghai Nuclear Engineering Research and Design Institute Co., Ltd., Suzhou Thermal Research Institute Co., Ltd., Nanjing Fubei
Er Hardware Products Co., Ltd., Xuzhou Ruida High-strength Fastener Co., Ltd., Ningbo Zhongjing Electric Technology Co., Ltd., Shanghai Yaluo Precision Fastener Co., Ltd.
Solid 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 1.Alloy steel bolts, screws and studs
1 Scope
This document specifies grades 1, 2, and 3 alloy steel bolts, screws and studs for pressurized water reactor nuclear power plants (hereinafter referred to as grades 1, 2, and 3 bolts, screws and studs).
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 bolts, screws and studs.
a) made of alloy 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 other grade 1, 2 and 3 alloy 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
GB/T 3098.1 Mechanical properties of fasteners Bolts, screws and studs
GB/T 3103.1 Fastener Tolerance Bolts, Screws, Studs and Nuts
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