1、Designation:F2329/F2329M15Standard Specification forZinc Coating,Hot-Dip,Requirements for Application toCarbon and Alloy Steel Bolts,Screws,Washers,Nuts,andSpecial Threaded Fasteners1This standard is issued under the fixed designation F2329/F2329M;the number immediately following the designation ind
2、icates 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()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers the requirements for
3、 hot-dipzinc coating applied to carbon steel and alloy steel bolts,screws,washers,nuts,and special threaded fasteners.It alsoprovides for minor coating repairs.Nails and rivets are notincluded in this specification.1.2 It is intended to be applicable to fasteners that arecentrifuged or otherwise han
4、dled to remove excess galvanizingbath metal(free zinc).1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from
5、 the two systems may result in non-conformancewith the standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-
6、bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A153/A153M Specification for Zinc Coating(Hot-Dip)onIron and Steel HardwareA394 Specification for Steel Transmission Tower Bolts,Zinc-Coated and BareA563 Specification for Carbon and Alloy Steel NutsA563M Specifi
7、cation for Carbon andAlloy Steel Nuts(Met-ric)A780/A780M Practice for Repair of Damaged and UncoatedAreas of Hot-Dip Galvanized CoatingsB487 Test Method for Measurement of Metal and OxideCoating Thickness by Microscopical Examination ofCross SectionE376 Practice for Measuring Coating Thickness byMag
8、netic-Field or Eddy-Current(Electromagnetic)Test-ing MethodsF606/F606M Test Methods for Determining the MechanicalPropertiesofExternallyandInternally ThreadedFasteners,Washers,Direct Tension Indicators,and RivetsF1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performanc
9、e InspectionF1789 Terminology for F16 Mechanical Fasteners3.Terminology3.1 Definitions:3.1.1 Terms used in this specification are defined in Termi-nology F1789 unless otherwise defined in this specification.3.1.2 batch lotquantity of identical parts cleaned,pickled,fluxed,and galvanized together at
10、one time in a galvanizingbasket.3.1.3 galvanizinghot-dip zinc coating.3.1.4 high temperature galvanizinggalvanizing processcarried out in a ceramic vessel(kettle)at an approximatetemperature ranging between 990F and 1040F 530C and560C.3.1.5 hot-dip zinc coating of mechanical fastenersprocesswhereby
11、fasteners are zinc coated by immersion in a bath ofmolten zinc,resulting in the formation of the iron/zinc alloycoating and a zinc coating at the surface of the fastener.Thisprocess involves the removal of excess zinc by spinning theparts in a centrifuge,or brushing the threaded portion,orhandling o
12、therwise to remove the excess zinc.3.1.6 production lotbatches of parts originating from thesame manufacturing lot,processed continuously throughcleaning,pickling,fluxing,dipping in molten zinc and spun ina centrifuge,or other means,without any significant change intime,temperature,and concentration
13、 of the constituents of theprocess.1This specification is under the jurisdiction of ASTM Committee F16 onFasteners and is the direct responsibility of Subcommittee F16.03 on Coatings onFasteners.Current edition approved July 1,2015.Published September 2015.Originallyapproved in 2005.Last previous ed
14、ition approved in 2013 as F2329-13.DOI:10.1520/F2329-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary
15、 of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.7 stress reliefprocess of heating parts for a definitetime at a given temperature in order to relieve stress induced bywork hardeni
16、ng.4.Ordering Information4.1 Orders for zinc coating of fasteners to this specificationshall include the following:4.1.1 Name of product(that is bolt,stud,nut,washers,orother);4.1.2 ASTM designation and year of issue,including fas-tener specification number;4.1.3 Hydrogen embrittlement relief treatment,as requiredby the purchaser(see,7.2.3);4.1.4 Quantity of fasteners to be hot-dip zinc coated;4.1.5 Stress relief or tempering temperature to which thefasteners where subjected,if applicable;4.1.6