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GB/T 3098.1-2010: Mechanical properties of fasteners -- Bolts, screws and studs Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 3098.1: Historical versions
Similar standardsGB/T 3098.1-2010: Mechanical properties of fasteners -- Bolts, screws and studs---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT3098.1-2010J 13 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Replace GB/T 3098.1-2000 Mechanical Properties of Fasteners - Bolts, Screws and Studs (ISO 898-1. 2009, MOD) Issued on: JANUARY 10, 2011 Implemented on: OCTOBER 01, 2011 Jointly Issued by the General Administration of Quality Supervision, Inspection and Quarantine and (GAQSIQ) Standardization Administration (SAC) of the People's Republic of China ForewordThis part of GB/T 3098 (hereinafter referred to as this part) is one of the series of standards "Mechanical Properties of Fasteners". This series include. - GB/T 3098.1-2000 Mechanical Properties of Fasteners - Bolts, Screws and Studs; - GB/T 3098.2-2000 Mechanical Properties of Fasteners - Nuts - Coarse Thread; - GB/T 3098.3-2000 Mechanical Properties of Fasteners - Set Screws; - GB/T 3098.4-2000 Mechanical Properties of Fasteners - Nuts - Fine Pitch Thread - GB/T 3098.5-2000 Mechanical Properties of Fasteners - Tapping Screws; - GB/T 3098.6-2000 Mechanical Properties of Corrosion - Resistant Stainless - Steel Fasteners-Part 1. Bolts, Screws and Studs; - GB/T 3098.7-2000 Mechanical Properties of Fasteners - Thread Rolling Screws; - GB/T 3098.8-2010 Mechanical Properties of Fasteners Parts for Bolted Connections for Use at Temperatures from -200℃~+700℃; - GB/T 3098.9-2010 Mechanical Properties of Fasteners - Prevailing Torque Type Steel Nuts; - GB/T 3098.10-1993 Mechanical Properties of Fasteners Bolts, Screws, Studs and Nuts Made of Non-ferrous Metals; - GB/T 3098.11-2002 Mechanical Properties of Fasteners - Drilling Screws with Taping Screw Thread; - GB/T 3098.12-1996 Mechanical Properties of Fasteners - Cone Proof Load Test on Nuts; - GB/T 3098.13-1996 Mechanical Properties of Fasteners -Torsional Test and Minimum Torques for Bolts and Screws with Nominal Diameters 1mm to 10mm"; - GB/T 3098.14 Mechanical Properties of Fasteners - Widening Test on Nuts; - GB/T 3098.15-2000 Mechanical Properties of Fasteners - Nuts Made of Stainless-steel; - GB/T 3098.16-2000 Mechanical Properties of Fasteners - Set Screws Made of Stainless-steel; - GB/T 3098.17-1996 Mechanical Properties of Fasteners - Preloading Test for the Detection of Hydrogen Embrittlement - Parallel Bearing Surface Method; - GB/T 3098.18-2004 Mechanical Properties of Fasteners - Blind Rivets Testing; - GB/T 3098.19-2004 Mechanical Properties of Fasteners - Blind Rivets with Break Pull Mandrel; - GB/T 3098.20-2004 Mechanical Properties of Fasteners - Wing Nuts with Specified Proof Torque; - GB/T 3098.21-2008 Mechanical Properties of Fasteners - Part 21. Tapping Screws of Stainless-steel; - GB/T 3098.22-2009 Mechanical Properties of Fasteners Made of the Fine Grain Non-heat Treatment Steel - Bolts, Screws and Studs. This part is Part 1 of GB/ T 3098. This part is modified in relation to ISO 898-1. 2009 "Mechanical Properties of Fasteners Made of Carbon Steel and Alloy Steel - Part 1. Bolts, Screws and Studs with Specified Property Classes - Coarse Thread and Fine Pitch Thread" (English edition) and the main II modifications are as follows. - Standard name was modified; - In the normative references, the international standards were replaced with national standards (see Chapter 2); - Designation of "property class" for "fasteners for reducing load bearing capacity" in ISO 898-1 is not in accordance with those specified in Chapter 5 and correction was made in this part (see Tables 10, 11 and 12); - "The fracture for fasteners of ds >d2 shall be present within the free threaded length" specified in ISO 898-1 was modified as "The fracture shall be present within the free threaded length or unthreaded shank" in this part (see Section 8.2.1, Articles 9.1.6.1.2 and 9.2.6.2); - Radius of pendulum blade adopted in the impact test is unspecified in ISO 898-1 and it is specified as "2mm radius of pendulum blade shall be adopted" (see Section 9.14.5). This part replaced GB/T 3098.1-2000 “Mechanical Properties of Fasteners - Bolts, Screws and Studs. Compared with GB/T 3098.1-2000, main changes in this part are as follows. - Terms and definitions are newly added (Chapter 3); - Symbols and terms for mechanical physical properties are comprehensively updated (Chapter 4~Chapter 9); - Designation, mark, basic types and applicable test methods for property class of fasteners for reducing load bearing capacity are newly added (Chapter 5 and Sections 10.4, 8.2.2, 8.6.1 and 8.6.2); - In materials for manufacturing fasteners, "Carbon steel or carbon steel with additional element" is specified for Classes 4.6~ 6.8"; "carbon steel with additional element" is added for Classes 8.8~12.9 and replaces the "low carbon alloy steel" specified in the former standard (See Table 2); - The note in relevant materials for fasteners in Chapter 6 "where relevant countries or regions are involved, it shall be noted that some chemical elements are limited by some national regulations or prohibited for use”; - "requirements for fastener materials in GB/T 5267.3 are applicable to hot galvanizing fasteners" was added in Chapter 6; - Classes 3.6 and 10.9 were canceled, Class 12.9 was newly added and Class 12.9 was modified (Chapter 6 and Chapter 7); - Maximum content of boron is unspecified for Class 4.6~Class 6.8; - Maximum content is specified as 0.025% for Classes 8.8~12.9 phosphorus (P) and sulfur (s); - "Requirements shall be executed carefully where 12.9/Class12.9 is used" was newly added (footnote i in Table 2); - Index of strength and impact test methods were modified (Table 3 and Section 9.14); - Table 4 and Table 5 in former standard were canceled and two test series (groups) were specified (Chapter 8); - Requirements of "the manufacturer, the supplier and the demander may select their own methods to control the product quality" were newly added (see Sections 8.3, 8.4 and 8.5); - Requirements on testers were newly added (see Section 9.2.3 etc.); - Examples for tensile test devices were newly added (see Figure 2); III - Threads of internal adaptors for wedge on-load test and tensile test were newly added (see Table 14); - Index and test methods for determining percentage elongation after fracture (Af) and 0.0048d non-proportional elongation stress (Rpf) by full-size tensile test were newly added (see Chapter 9 and Appendix C); - Appendix A of the former standard "Yield Point at High Temperature or Specified Non-proportional Elongation Stress" was canceled; - Informative appendixes "Relationship between Tensile Strength and Percentage Elongation after Fracture" and Impact of High Temperature on Mechanical Properties of Fasteners" were newly added (see Appendix A and Appendix B). Appendix A and Appendix B of this part are informative. This part was proposed by China Machinery Industry Federation. This Part is under the jurisdiction of the National Technical Committee on Fasteners of Standardization Administration of China (SAC/TC 85). Drafting organization of this part. China Productivity Center for Machinery. Drafting organizations of this part. Product Qualify Supervision and Inspection Center for Universal Parts of Mechanical Industry, Shanghai Shenguang High Strength Bolts Co., Ltd., Shanghai Jinma High Strength Fasteners Co., Ltd., Hebei Xinde Electric Fittings Co., Ltd., Ningbo Jiulong Fasteners Manufacture Co., Ltd., Ningbo Eastport Fastener Manufacturing Co., Ltd., Gem-year Industrial Co., Ltd., Jiashan), China National Center for Quality Supervision and Test of Standard Parts, Rui'an Ruiqiang Standard Parts Co., Ltd., Shangdong Gaoqiang Fastener Co., Ltd., Maanshan Iron & Steel Company Limited, Dongfeng Mobile Fastener (DFMF) Co., Ltd., Fawer Automotive Parts Branch Co., Ltd., Shanghai Biao Wu High Tensile Fasteners Co., Ltd. and Ningbo Zhongji Inspection of Machinery Parts Co., Ltd. Secretariat of National Technical Committee for Standardization of Fasteners is responsible for the explanation of this part. The previous editions of the standards replaced by this part are as. - GB 3098.1-1982 and GB/T 3098.1-2000.Table of Contents1 Scope ... 1 2 Normative References ... 1 3 Terms and Definitions ... 3 4 Symbols and Abbreviated Terms ... 4 5 Designation System for Property Classes ... 5 6 Materials ... 6 7 Mechanical and Physical Properties ... 9 8 Applicability of Test Methods ... 16 9 Test Methods ... 30 10 Marking ... 52 Appendix A (Informative) Relation Between Tensile Strength And Elongation After Fracture .. 59 Appendix B (Informative) Influence of Elevated Temperatures on Mechanical Properties of Fasteners ... ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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