Standard No.:	GB/T 3098.22-2009
English Name:	Mechanical properties of fasteners made of the fine grain non-heat treatment steel—Bolts,screws and studs
Chinese Name:	紧固件机械性能 细晶非调质钢螺栓、螺钉和螺柱
Chinese Classification:	J13    Fastener
Professional Classification:	GB    National Standard
ICS Classification:	21.060.10 21.060.10    Bolts, screws, studs 21.060.10
Issued by:	AQSIQ, SAC
Issued on:	2009-10-15
Implemented on:	2010-3-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	11000 words
Price(USD):	270.0
Delivery:	via email in 1 business day

1 Scope This part of GB/T 3098 specifies mechanical properties of bolt, screw, stud and screw rod (hereafter referred to as "fasteners") made of fine grain non-heat treatment steel when tested at 10℃~35℃. The fasteners, which comply with this part under the specified ambient temperature, may fail to reach the specified mechanical and physical properties under higher or lower temperature. Fasteners under the scope of this part of GB/T 3098 shall: ——be a fine grain non-heat treatment steel produced by thermomechanical rolling process; ——conform to common thread specified in GB/T 192; ——be M6~M16 coarse thread and M8×1~M16×1.5 fine thread; ——conform to diameter/pitch combination specified in GB/T 193; ——conform to thread tolerance specified in GB/T 197 or GB/T 22029. This part is not applicable to set screw and similar tension-free fasteners (see GB/T 3098.3). This part does not specify the following performance requirements: ——Weldability; ——Corrosion resistance; ——Shear stress resistance; ——Fatigue resistance. 2 Normative References The following documents contain provisions which, through reference in this part of GB/T 3098, constitute provisions of this standard. For dated references, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications do not apply. However, the parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents apply. For undated references, the latest edition of these referenced documents applies. GB/T 192 General Purpose Metric Screw Threads—Basic Profile (GB/T 192-2003, ISO 68-1:1998, ISO general purpose screw threads—Basic profile—Part 1: Metric screw threads, MOD) GB/T 193 General Purpose Metric Screw Threads—General Plan (GB/T 193-2003, ISO 261:1998, ISO general purpose metric screw threads—General plan, MOD) GB/T 196 General Purpose Metric Screw Threads—Basic Dimensions (GB/T 196-2003, ISO724:1993, ISO general purpose metric screw threads—Basic dimensions , MOD) GB/T 197 General Purpose Metric Screw Threads—Tolerances (GB/T 197-2003, ISO 965-1:1998, ISO general purpose metric screw threads—Tolerances—Part l: Principles basic data, MOD) GB/T 222 Permissible Tolerances for Chemical Composition of Steel Products GB/T 223 (all parts) Iron Steel and Alloy GB/T 224 Determination of Depth of Decarburization of Steel (GB/T 224-2008, ISO 3887:2003, MOD) GB/T 226 Test Method for Macrostructure and Defect of Steel by Etching (GB/T 226-1991, neq ISO 4969:1980) GB/T 228 Metallic Materials—Tensile Testing at Ambient Temperature (GB/T 228-2002, eqv ISO 6892:1998) GB/T 229 Metallic Materials—Charpy Pendulum Impact Test Method (GB/T 229-2007, ISO 148-1:2006, Metallic Materials Charpy pendulum impact test Part 1:Test method, MOD) GB/T 230.1 Metallic Materials—Rockwell Hardness Test—Part 1: Test Method (Scales A, B, C, D, E, F, G, H, K, N, T) (GB/T 230.1- 2009, ISO 6508-1:2005.MOD) GB/T 231.1 Metallic Materials—Brinell Hardness Test—Part 1: Test Method (GB/T 231.1-2009, ISO 6506-1:2005, MOD) GB/T 1979 Standard Diagrams for Macrostructure and Defect of Structural Steels GB/T 2101 General Requirement of Acceptance Packaging, Marking and Certification for Section Steel GB/T 2975 Steel and Steel Products—Location and Preparation of Test Pieces for Mechanical Testing (GB/T 2975-1998. eqv ISO 377: 1997) GB/T 3098.1 Mechanical Properties of Fasteners-Bolts, Screws and Studs (GB/T 3098.1-2000, idt ISO 898-1:1999) GB/T 3098.3 Mechanical Properties of Fasteners—Set Screws (GB/T 3098.3-2000, idt ISO 898-5:1998) GB/T 3098.13 Mechanical Properties of Fasteners—Torsional Test and Minimum Torques for Bolts and Screws with Nominal Diameters 1mm to 10mm (GB/T 3098.13-1996, idt ISO 898-7:1992) GB/T 4336 Test Method for Spark Discharge Atomic Emission Spectrometric Analysis of Carbon and Low-alloy Steel (Routine Method) GB/T 4340.1 Metallic Materials—Vickers Hardness Test—Part 1: Test Method (GB/T4340.1-2009, ISO 6507-1:2005, MOD) GB/T 5267.1 Fasteners—Electroplated Coatings (GB/T 5267.1-2002, ISO 4042:1999, IDT) GB/T 5267.2 Fasteners—Non-electrolytically Applied Zinc Flake Coatings (GB/T 5267.2-2002, ISO 10683:2000, IDT) GB/T 5267.3 Fasteners—Hot Dip Galvanized Coatings (GB/T 5267.3-2008, ISO 10684:2004, IDT) GB/T 5276 Fasteners—Bolts, Screws, Studs and Nuts—Symbols and Designations of Dimensions(GB/T 5276-1985, eqv ISO 225:1983) GB/T 5277 Fasteners—Clearance Holes for Bolts and Screws(GB/T 5277-1985, eqv ISO 273:1979) GB/T 5779.1 Fasteners—Surface Discontinuities—Bolts, Screws and Studs for General Requirements (GB/T 5779.1-2000, idt ISO) 6157-1:1988) GB /T 5779.3 Fasteners—Surface Discontinities—Bolts, Screws and Studs for Special Requirements (GB/T 5779.3-2000, idt ISO 6157-3:1988) GB/T 6394 Metal-methods for Estimating the Average Grain Size (GB/T 6394-2002, ASTM E112:1996, MOD) GB/T 6478 Steels for Cold Heading and Cold Extruding (GB/T 6478-2001, neq ISO 4954:1993) GB/T 9145 General Purpose Metric Screw Threads—Limits of Sizes for the Screw Threads of Medium Quality and Preferable Plan (GB/ T 9145-2003, ISO 965-2:1998, ISO general purpose metric screw threads Tolerances—Part2:Limits of sizes for general purpose external and internal screw threads Medium quality, MOD) GB/T 10561 Steel - Determination of Content of Nonmetallic Inclusions - Micrographic Method Using Standards Diagrams (GB/T 10561 -2005, ISO 4967:1998, IDT) GB/T 14981 Dimensions, Shape, Mass and Tolerances for Hot-rolled Wire Rods (GB/T 14981-2009, ISO 16124:2004, MOD) GB/T 16825.1-2002 Verification of Static Uniaxial Testing Machines—Part 1 : Tension/compression Testing Machines—Verification and Calibration of the Force-measuring System (ISO 7500-1:2004, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring system, IDT) GB/T 22029 Hot-dip Galvanized Screw Threads—On External Screw Threads There is The Clearance for Accommodating the Hot-Dip Galvanized Coat (GB/T 22029-2008, ISO 965-4:1998, ISO general purpose metric screw threads Tolerances Part4:Limits of sizes for hot-dip galvanized external screw threads to mate with internal screw threads tapped with tolerance position H or G after galvanizing MOD) GB/T 20066 Steel and Iron—Sampling and Preparation of Samples for the Determination of Chemical Composition (GB/T 20066-2006, ISO 14284:1996, MOD) YB/T 5293-2006 Metallic Materials—Forging Test 3 Terms and Definitions 3.1 finished fasteners the fasteners which have gone through all the manufacturing procedures and are not processed into machined test pieces. They may be either surface treated or not and may have full bearing capacity or reduced bearing capacity 3.2 machined test pieces the test piece machined from finished fasteners in order to evaluate material performance 3.3 physical fastener finished fasteners with rod diameter ds≈d2 or ds≥d2 or full thread screw (bolt) or full thread stud (screw rod) 3.4 waisted fastener finished fasteners with rod diameter ds

Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Symbol and Unit 5 Designation System of Performance Grade 6 Materials 6.1 Technical Conditions of Materials 6.2 Applicable Fasteners 6.3 Recommendatory Technologies 7 Mechanical and Physical Performance 8 Applicability of Test Methods 8.1 General 8.2 Load Bearing Capacity of Fastener 8.3 Selection of Manufacturer 8.4 Selection of the Supplier 8.5 Selection of the Purchaser 8.6 Enforceable Test to Fasteners or Machined Test Pieces 9 Test Methods 9.1 Wedge Load Tension Test for Bolts and Screws (Excluding Studs and Screw Rods) Products 9.2 Tension Test for Determination of Tensile Strength of Finished Fasteners 9.3 Tension Test for Bolts and Screws with Weak Heads 9.4 Proof Load Test for Finished Fasteners 9.5 Tension Test for Machined Test Pieces 9.6 Head Solidity Test 9.7 Hardness Test 9.8 Torque Test 9.9 Impact Test for Machined Test Pieces 9.10 Surface Defect Inspection 10 Marking 10.1 General 10.2 Manufacturer's Identification Mark 10.3 Marking for Fasteners of Full Bearing Capacity 10.4 Marking for Fasteners of Reduced Bearing Capacity 10.5 Packaging Marking Annex A (Normative) Specification for Hot-rolled Wire Rod Made of Fine Grain Non-heat Treatment Steel Annex B (Informative) Guideline for Use of Fasteners Manufactured Using Hot-rolled Wire Rods Made of Fine Grain Non-heat Treatment Steel

Referred in GB/T 3098.22-2009: *GB/T 192-2003 General purpose metric screw threads-Basic profile *GB/T 193-2003 General purpose metric screw threads—General plan *GB/T 196-2003 General Purpose Metric Screw Threads-Basic Dimensions *GB/T 197-2018 General purpose metric screw threads—Tolerances *GB/T 222-2006 Permissible Tolerances for Chemical Composition of Steel Products *GB/T 223-1994 *GB/T 224-2008 Determination of depth of decarburization of steels *GB/T 226-2015 Test method for macrostructure and defect of steel by etching *GB/T 228-2002 Metallic Materials – Tensile Testing at Ambient Temperature *GB/T 229-2007 Metallic Materials - Charpy Pendulum Impact Test Method *GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method *GB/T 231.1-2018 Metallic materials-Brinell hardness test-Part 1:Test method *GB/T 1979-2001 STANDARD diagrams for macrostructure and defect of structural steels *GB/T 2101-2017 General requirement of acceptance packaging marking and certification for section steel *GB/T 2975-2018 Steel and steel products—Location and preparation of samples and test pieces for mechanical testing *GB/T 3098.1-2010 Mechanical properties of fasteners—Bolts,screws and studs *GB/T 3098.3-2016 Mechanical properties of fasteners-Set screws *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 4336-2016/XG1-2017 Carbon and low-alloy steel―Determination of multi-element contents―Spark discharge atomic emission spectrometric method (routine method) *GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method *GB/T 5267.1-2002 Fasteners - Electroplated Coatings *GB/T 5267.2-2017 Fasteners―Non-electrolytically applied zinc flake coatings *GB/T 5267.3-2008 Fasteners - Hot dip galvanized coatings *GB/T 5276-2015 Fasteners—Bolts, screws, studs and nuts—Symbols and descriptions of dimensions *GB/T 5277-1985 Fasteners; Clearance holes for bolts and screws *GB/T 5779.1-2000 Fasteners-Surface discontinuities-Bolts,screws and studs for general requirements *GBT- *GB/T 6394-2017 Metal - Methods for estimating the average grain size *GB/T 6478-2015 Steels for cold heading and cold extruding *GB/T 9145-2003 General purpose metric screw threads - Limits of sizes for the screw threads of medium quality and preferable plan *GB/T 10561-2005 Steel - Determination of Content of Nonmetallic Inclusions - Micrographic Method Using Standards Diagrams *GB/T 14981-2009 Dimension shape mass and tolerance for hot-rolled round wire rod *GB/T 16825.1-2002 Verification of static uniaxial testing machines--Part 1:Tension/compression testing machines--Verification and calibration of the force-measuring system *GB/T 22029-2008 Hot-dip galvanized screw threads - On external screw threads there is the clearance for accommodating the hot-dip galvanized coat *GB/T 20066-2006 Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition *YB/T 5293-2006 Metallic materials-Forging test