ASTM_F_3125-F3125M-19.pdf

This international standard was developed incordance with internationallyrecognized pron standardizationestablished in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.Designation:F3125/F3125M-19Standard Specification forHigh Strength Structural Bolts and Assemblies,Steel andAlloy Steel,Heat Treated,Inch Dimensions 120 ksi and 150ksi Minimum Tensile Strength,and Metric Dimensions 830MPa and 1040 MPa Minimum Tensile StrengthThis standard is issued under the fixed designation F3125/F3125M:the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scopeing values from the two systems may result in non-1.1 This specification covers chemical,physical and me-conformance with the standard.chanical requirements for quenched and tempered bolts manu-1.6 Table footnotes are requirements.Notes are advisory.factured from steel and alloy steel,in inch and metric1.7 This standard does not purport to address all of thedimensions,in two strength grades,two types and two styles.safery concerns,if any,associated with its use.It is the1.1.1 This specification is a consolidation and replacementresponsibility of the user of this standard to establish appro-of six ASTM standards,including:A325,A325M,A490.priate safery,health,and environmental practices and deter-A490M.F1852andF2280.mine the applicabiliry of regulatory limitations prior to use.1.1.2 This consolidated standard is to ensure alignment1.8 This international standard was developed in accor-between standards with the same intended end use and todance with internationally recognized principles on standard-simplify the use and maintenance of structural bolt specifica-ization established in the Decision on Principles for thetions.Development of International Standards,Guides and Recom-1.2 Intended Use:mendations issued by the World Trade Organization Technical1.2.1 Bolts manufactured under this specification are in-Barriers to Trade(TBT)Committee.tended for use in structural connections covered in the Speci-fication for Structural Joints Using High-Strength Bolts,as2.Referenced Documentsapproved by the Research Council on Structural Connections.2.1 ASTM Standards:21.2.2 Bolts in this specification are furnished in sizes fromA194/A194M Specification for Carbon Steel,Alloy Steel,2 to 1-%2 in.inclusive and from M12 to M36 inclusive.and Stainless Steel Nuts for Bolts for High Pressure or1.3 Classification.Table 1:High Temperature Service,or Both1.3.I Bolts are designated by grade,which indicates inch orA354 Specification for Quenched and Tempered Alloy Steelmetric strength and style.Bolts,Studs,and Other Externally Threaded Fasteners1.3.2 Bolts are designated by type denoting raw materialA449 Specification for Hex Cap Screws,Bolts and Studschemical composition.Steel,Heat Treated,120/105/90 ksi Minimum Tensile1.3.3 Bolts are designated by style denoting Heavy HexStrength,General Usebolts or Twist-OffStyle assemblies.A563 Specification for Carbon and Alloy Steel NutsA563M Specification for Carbon and Alloy Steel Nuts(Met-1.4 Terms used in this specification are defined in F1789.ric)1.5 Units-The values stated in either SI units or inch poundA751 Test Methods,Practices,and Terminology for Chemi-units are to be regarded separately as standard.The valuescal Analysis of Steel Productsstated in each system may not be exact equivalents:therefore,B695 Specification for Coatings of Zinc Mechanically De-each system shall be used independently of the other.Combin-posited on Iron and SteelE709 Guide for Magnetic Particle TestingE1444/E1444M Practice for Magnetic Particle TestingThis specification is under the jurisdiction of ASTM Committee F16 onFasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,Nuts,Rivets and Washers.2 For referenced ASTM standards,visit the ASTM website,www.astm.org.orCurrent edition approved Dee.1.2019.Published December 2019.Originallycontact ASTM Customer Service at serviceastm.org.For Annual Book of A.STMpublished in 2015.Last previous edition published in 2018 as F3125-18.DOI:Standards volume information,refer to the standards Document Summary page on10.1520/F3125F3125M-19.the ASTM website.Copyright ASTM Intemational,100 Barr Harbor Drive,PO Box C700.West Conshohocken,PA 19428-2959.United StatesCopyright by ASTM Intl(all rights reserved):Wed Dee 18 10:21:35 EST2019Downloaded/printed byShanghai Jiaotong University(Shanghai Jiaotong University)pursuant to License Agreement.No further reproductions authorized.F3125/F3125M-19resolve controversy,shall be conducted at the frequency7.4 Coatings and Other Finishes:specified in the quality provisions of ASME B18.18.7.4.1 Permitted coatings,including supplementary lubrica-NorE 3-It is the intent of this specification that coated nuts and boltstion and nut oversize requirements,are provided in Annex Al.assemble freely when ordered together.It is recognized that the batchnature of coating process and the cumulative effect of coating thickness7.4.2 When coated fasteners are required,the purchasermay create intermittent assembly problems.Staying within the materialshall specify the process and any additional special require-limits is important for assembly strength.Users are encouraged to use thements.smallest nut overtap which permits consistent free assembly.7.4.3 Threaded components(bolts and nuts)shall be coatedby the same process,limited to one process per item with no5.Product Markingmixed processes in a lot.5.1 At a minimum.all bolts shall be marked as required in7.5 Secondary Processing:Table 2.Marking shall be on the bolt head and may be raised7.5.1 Lot control and full traceability shall be maintainedor depressed at the manufacturers option.The marking shallthroughout all outside or secondary processes.be visible after coating.7.5.2 Lots to which secondary processing has been per-5.2 Grade and Type marking,and the manufacturers markformed by any party after sale from the manufacturer must beshall be in separate and distinct locations on the head.Othertraceable using a lot number which differs from the manufac-markings,if used,such as private label distributors mark shallturers original lot number.also be separate and distinct.7.5.3 If processing that can affect mechanical properties isperformed after initial testing,the bolts shall be retested for all6.Chemical Compositionspecified mechanical properties and performance requirementsaffected by the processing.This processing includes heat6.1 120ksi/830MPA Type I bolts shall be carbon steel,treatment,hot-dip zinc coating and other processing that couldcarbon boron steel,alloy steel or alloy steel with boronaffect mechanical properties.addition at the manufacturers option,conforming to the7.5.4 Secondary processing,including lubrication,by anychemical composition specified in Table 3.party other than that which certified the assembly lot shall not6.2 150ksi/1040MPa bolts Type I shall be alloy steel orbe permitted on a Twist-Off style bolt assembly lot unlessalloy steel with boron addition at the manufacturers option.under the direction of the manufacturer.conforming to the chemical composition specified in Table 3.NorE 4-Twist-Off Style bolt performance is dependent on the torque/6.3 Type 3 bolts shall be weathering steel and shall conformtension relationship and alteration of this relationship may have an adverseto the chemical compositions A or B specified in Table 3 or beeffect on performance.produced from a material with chemical composition Basedon Corrosion Indexthat has a corrosion index of 6 or greater.8.Test Methodsas calculated from the heat analysis,and as described in G101.8.I Tensile strength,proof load,surface discontinuities,Calculation of the corrosion index shall be done using thehardness,micro-hardness,carburization/decarburization,coat-predictive method based on the data of Larabee and Coburn oring thickness,magnetic particle,rotational capacity,assemblythe predictive method based on the data of Townsend.(seetension testing and coating thickness tests,as applicable,shallGuide G10I for methods of estimating the atmospheric corro-be in accordance with Table 4.sion resistance of low alloy steels).8.1.1 Tensile strength shall be determined using the F606/6.4 If performed,product analysis made on finished boltsF606M Wedge or Axial Tension Testing of Full Size Productrepresenting each lot shall be within 10%of the value requiredMethod or the Machined Test Specimens Method depending onof the heat analysis.For example;heat analysis C 0.30-0.52size and nominal length as specified in 10.1.product analysis C 0.27-0.578.1.2 Proof load shall be determined using F606/F606MMethod 1,Length Measurement,or Method 2,Yield Strength,6.5 Heats to which bismuth.selenium.tellurium.or lead hasat the option of the manufacturer.been intentionally added shall not be permitted.8.1.3 Magnetic Particle Inspection shall be conducted on6.6 Chemical analysis shall be performed in accordance150 ksi(1040 MPa)bolts,in accordance with Table 4 and 12.1.with A751.8.1.4 Carburization/Decarburization Inspection shall beconducted on 150 ksi(1040 MPa)bolts,in accordance with7.Materials and Manufacture12.27.1 Production Method:8.1.5 Rotational Capacity Testing shall be performed on7.1.1 Bolts shall be cold formed,warm formed,hot formed.galvanized heavy hex assemblies by the responsible party.hot forged,machined,or any combination thereof.Plain finish and other coated heavy hex assemblies shall berotationally capacity tested by the responsible party when7.2 Heat Treatment:7.2.1 All bolts shall be quenched in oil from the austenitiz-specified on the inquiry and purchase order,see SupplementaryRequirement S4.Test method is as described in Annex A2.ing temperature.7.2.2 All bolts shall be tempered by reheating to not lessNore 5-Rotational capacity testing of assemblies intended to bethan800F/427Cinstalled using a twist-off feature and having been qualified in accordancewith Section 11,may offer some limited qualitative information.but does7.3 Threads may be rolled or cut.not provide relevant engineering data.Copyright by ASTM Intl(all rights reserved):Wed Dee 18 10:21:35 EST 2019 4Downloaded/printed byShanghai Jiaotong University(Shanghai Jiaotong University)pursuant to License Agreement.No further reproductions authorized.