1、Designation:A18314Standard Specification forCarbon Steel Track Bolts and Nuts1This standard is issued under the fixed designation A183;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses
2、indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers carbon steel track bolts andcarbon steel nuts for
3、use in conjunction with joint bars toconnect rails in railroad track.1.2 Heat-treated bolts for general track use.1.3 Medium carbon nuts for general application on trackbolts.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconve
4、rsions to SI units that are provided for information onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:2A700 Practices for Packaging,Marking,and Loading Meth-ods for Steel Products for Shipment(Withdrawn 2014)3F606 Test Methods for Determining the Mechanical Proper-ties of
5、 Externally and Internally Threaded Fasteners,Washers,Direct Tension Indicators,and Rivets2.2 ASME Standards:4B1.1 Unified Inch Screw ThreadsB18.10 Track Bolts and Nuts2.3 AREMA Standard:5American Railway Engineering and Maintenance-of-WayAssociation Manual,Design of Track Bolts and Nuts,Chapter 4,P
6、art 13.Ordering Information3.1 Orders for track bolts and nuts under this specificationshall include the following information:3.1.1 Quantity of bolts and nuts(weights),3.1.2 ASTM designation and date of issue,3.1.3 Design of bolt:oval or elliptical neck(see 2.3),3.1.4 Dimensions of bolt:nominal dia
7、meter and lengthunder head,3.1.5 Nominal size of nut,thickness,and chamfer angle(see2.3),3.1.6 Thread fit of nuts on bolts:free or wrench-turn fit(see2.2),and3.1.7 Certification or test reports,if required(see Section12).4.Manufacture4.1 The steel shall be made by the open-hearth,basic-oxygen,or ele
8、ctric-furnace process,and may be either continu-ous strand or ingot cast.4.2 Bolts,including the head and oval or elliptical neck,may be produced by hot or cold forging at the option of themanufacturer.4.3 Bolt threads may be machine cut or hot-or cold-rolledat the option of the manufacturer.4.4 Bol
9、ts shall be heat-treated by quenching in a liquidmedium from above the austenitizing temperature,and tem-pering at a temperature not less than 750F(399C).5.Chemical Requirements5.1 The steel shall conform to the requirements for chemicalcomposition specified in Table 1.1This specification is under t
10、he jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.01 on Steel Rails and Accessories.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 1935 to replace A50,A51.Combined with A76 in 1980.L
11、ast previousedition approved in 2009 as A183 03(2009).DOI:10.1520/A0183-14.2For 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
12、 website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Two Park Ave.,New York,NY 10016-5990,http:/www.asme.org.5Available from the American Railway Engineering and Main
13、tenance-of-WayAssociation(AREMA),10003 Derekwood Lane,Suite 210 Lanham,MD 20706,http:/www.arema.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);5.2 Heat or Cast AnalysisAn analysis of each he
14、at or castshall be made by the manufacturer to determine the percent-ages of the elements specified in Table 1.The analysis shall bemade from a test sample taken preferably during the pouring ofthe heat.The chemical composition thus determined shallconform to the heat-cast requirements of Table 1.5.
15、3 Product AnalysisAn analysis may be made by thepurchaser from a finished bolt or nut.The chemical composi-tion thus determined shall conform to the product requirementsof Table 1.The phosphorous content thus determined shall notexceed that specified in Table 1 by more than 25%.Note thatrephosphoriz
16、ed or resulfurized material is not subject torejection based on product analysis for these elements.6.Tensile Requirements6.1 Tension Tests:6.1.1 The material as represented by a tension test of afull-section bolt with nut assembled,or by a specimen ma-chined from a finished bolt shall conform to the respectiverequirements specified in Table 2 or Table 3.6.1.2 Full-section and reduced-section bolt tension testsshall be performed as described in Test Methods F606.6.1.3 Nuts shall be tested by ass
