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ASTM A183 - 14.pdf

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ASTM A183 - 14.pdf

Designation A183 − 14Standard 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 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 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 mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards2A700 Practices for Packaging, Marking, and Loading Meth-ods for Steel Products for Shipment Withdrawn 20143F606 Test Methods for Determining the Mechanical Proper-ties of Externally and Internally Threaded Fasteners,Washers, Direct Tension Indicators, and Rivets2.2 ASME Standards4B1.1 Unified Inch Screw ThreadsB18.10 Track Bolts and Nuts2.3 AREMA Standard5American Railway Engineering and Maintenance-of-WayAssociation Manual, Design of Track Bolts and Nuts,Chapter 4, Part 13. Ordering Information3.1 Orders for track bolts and nuts under this specificationshall include the following information3.1.1 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 diameter 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 electric-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 Bolts 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 the 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. Last 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 standard’s Document Summary page onthe ASTM 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 Maintenance-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 heat 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 1.5.3 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 thatrephosphorized or resulfurized material is not subject torejection based on product analysis for these elements.6. Tensile Requirements6.1 Tension Tests6.1.1 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 assembling the nut on the boltwith which it is to be used, and testing as described under thefull-section tension test for bolts in Test Methods F606.6.1.4 The bolt-nut assembly shall be capable of reaching theminimum load specified in Table 2 before failure of theassembly.6.2 Number of Tests6.2.1 BoltsOne full-section tension test and one reduced-section tension test shall be made by the manufacturer fromeach lot of bolts. Each lot shall consist of not more than oneheat of steel, heat-treated in the same furnace load in a batchheat-treating operation or under the same conditions in acontinuous heat-treating operation, with no lot to exceed 10tons 9.7 Mg.6.3 Retests6.3.1 BoltsIf the result of the full-section or reduced-section tension tests of any lot does not conform to thespecified requirements, the manufacturer may re-heat treatsuch lot, not more than two times, in which case two additionalfull-section and two additional reduced-section tension testsshall be made from the retreated lot. If all retest resultsconform to the specified requirements, the lot shall be ac-cepted.6.3.2 If the percentage of elongation of any reduced sectiontest specimen is less than that specified and any part of thefracture is more than3⁄4 in. 19 mm from the center of the gagelength, a retest shall be allowed.6.3.3 If during the full-section tension test a flaw is detectedin the bolt or nut that does not permit attainment of the testrequirements, the manufacturer shall be permitted to conductsorting or other reconditioning to eliminate the material con-taining that flaw, after which the test shall be repeated.7. Dimensions and Permissible Variations7.1 Track bolts manufactured in accordance with this speci-fication may have either oval or elliptical necks; the nuts maybe square or heavy square, with 25 chamfer, or heavy squarewith 60 chamfer.7.2 The bolts and nuts shall conform to the designs andnominal dimensions specified by the purchaser in the order orcontract, subject to the tolerances and variations prescribed inANSI B18.10.8. Threads and Thread Fit8.1 The threads and thread fit of bolts and nuts shall be asdescribed in ANSI B18.10 for either free fit or wrench turn fitas specified by the purchaser in the order or contract. Thespecification provides that free-fit threads shall be providedunless wrench-turn fit is specified in the order or contract.8.2 The torque to assemble the nut on the bolt for free-fit orwrench-turn-fit requirements shall be followedTABLE 1 Chemical RequirementsElement, Bolts NutsHeat-Cast Heat-CastCarbon, min or range 0.28–0.55 0.30–0.55Phosphorus, max 0.030 0.04Sulfur, max 0.050 0.06TABLE 2 Full-Section Tension Test RequirementsNominal Bolt Size, in. mm Threads per Inch Stress Area, in.2cm2 Minimum Full-Section Test Load,lbf kN7⁄8 22.2 9 0.462 2.98 50 800 22615⁄16 23.8 9 0.540 3.48 59 400 2641 25.4 8 0.606 3.96 66 600 2961-1⁄16 27.0 8 0.695 4.48 76 400 3401-1⁄8 28.6 7 0.763 4.92 83 900 373TABLE 3 Reduced-Section Tension Test RequirementsProperty Minimum RequirementTensile strength, psi MPa 110 000 760Yield point, psi MPa 80 000 550Elongation in 2 in. or 50 mm, 12Reduction of area, 25A183 − 142Copyright by ASTM Intl all rights reserved;8.2.1 Free FitThe torque for free fit shall be 10 lbf-ft 14N-m maximum experienced during assembly.8.2.2 Wrench-Turn FitThe nut shall have a free fit for atleast two threads in starting on the bolt. When engaged for thethickness of the nut plus two threads, the torque shall fallwithin 10–110 lbf-ft 14–149 N-m. When engaged for theremainder of the thread length, the torque shall not exceed themaximum requirement.9. Workmanship9.1 The bolts and nuts shall be neatly formed and free of finsand nicks that would affect application. The head of the boltshall be concentric with the shank, with the underside at rightangles to the axis of the bolt. The bolts and nuts shall be freeof injurious imperfections and shall have a workmanlike finish.10. Inspection10.1 The manufacturer shall afford the purchaser’s inspectorall reasonable facilities necessary to satisfy that the material isbeing produced and furnished in accordance with this specifi-cation. Mill inspection by the purchaser shall not interfereunnecessarily with the manufacturer’s operations. All tests andinspections shall be made at the place of manufacture, unlessotherwise agreed upon.11. Rejection and Rehearing11.1 Material that fails to conform to the requirements ofthis specification may be rejected. Rejections shall be reportedto the manufacturer or supplier promptly and in writing. In caseof dissatisfaction with the test results, the manufacturer orsupplier may make claim for a rehearing.12. Certification12.1 When specified in the purchase order or contract, amanufacturer’s certification shall be furnished to the purchaserthat the material was produced and tested in conformance withthis specification and has been found to meet the requirements.12.2 When specified in the purchase order or contract, areport of the chemical and mechanical test results shall befurnished.12.3 A Material Test Report, Certificate of Inspection, orsimilar document printed from or used in electronic form froman electronic data interchange EDI transmission shall beregarded as having the same validity as a counterpart printed inthe certifier’s facility. The content of the EDI transmitteddocument must meet the requirements of the invoked ASTMstandards and conform to any existing EDI agreement be-tween the purchaser and the supplier.12.4 Notwithstanding the absence of a signature, the orga-nization submitting either a printed document Material TestReport, Certificate of Inspection or similar document or anEDI transmission is responsible for the content of the report.13. Product Marking13.1 The bolt heads shall be marked with a symbol identi-fying the manufacturer. The symbol may be raised or depressedat the option of the manufacturer. The manufacturer may applyadditional marks for his own use.13.2 Bolts shall be marked on the head with a symbol toindicate heat-treated.14. Packaging and Package Marking14.1 Prior to packing wrench-fit assemblies, the nuts shallbe screwed onto the bolts enough to hold them in place untilused.14.2 Unless otherwise specified, nuts for free-fit assembliesshall be placed loose in the container with the bolts.14.3 All containers shall be marked by the manufacturer toindicate the name of the manufacturer, the size diameter andlength of the bolts, type, and weight in container.14.4 The Automotive Industry Action Group AIAG BarCode Standard for Primary Metals for Steel Products may beconsidered as a possible auxiliary method of identification onthe containers used for packaging the bolts and nuts. Use ofthis method shall be by agreement between purchaser andsupplier.15. U.S. Government Procurement15.1 When specified in the contract or purchase order,material shall be prepared for shipment and storage in accor-dance with the requirements of Practice A700.16. Keywords16.1 fasteners-steel; rails; railway applications; steel boltingmaterials; steel rails; track bolts and nutsASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 phone, 610-832-9555 fax, or serviceastm.org e-mail; or through the ASTM websitewww.astm.org. Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel 978 646-2600; http//www.copyright.com/A183 − 143Copyright by ASTM Intl all rights reserved;

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