1、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 parent
2、heses 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 stee
3、l 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 mathe
4、maticalconversions 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ASTM Standards:2A700 Practices for Packaging, Marking, and Loading Meth-ods for Steel Products for Shipment (Withdrawn 2014)3F606 Test Methods for Determining the Mechanica
5、l Proper-ties of 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 a
6、nd Nuts,Chapter 4, Part 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 Dimens
7、ions 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 t
8、he 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
9、 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
10、 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
11、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
12、, refer to the standards 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.asm
13、e.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 States15.2 Heat or Cast An
14、alysisAn 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-c
15、ast 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 mor
16、e than 25 %. Note thatrephosphorized 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
17、 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 test
18、ing 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 Tests:6.2.1 BoltsOne full-section tension test and one reduced-section tension
19、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
20、.3 Retests:6.3.1 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
21、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 than34 in. (19 mm) from the cent
22、er 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-tain
23、ing 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 b
24、olts 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 eit
25、her 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 requireme
26、nts shall be followed:TABLE 1 Chemical RequirementsElement, %Bolts NutsHeat-Cast Heat-CastCarbon, min or range 0.280.55 0.300.55Phosphorus, 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.2(cm2) Minimum Fu
27、ll-Section Test Load,lbf (kN)78 (22.2) 9 0.462 (2.98) 50 800 (226)1516 (23.8) 9 0.540 (3.48) 59 400 (264)1 (25.4) 8 0.606 (3.96) 66 600 (296)1-116 (27.0) 8 0.695 (4.48) 76 400 (340)1-18 (28.6) 7 0.763 (4.92) 83 900 (373)TABLE 3 Reduced-Section Tension Test RequirementsProperty Minimum RequirementTen
28、sile strength, psi (MPa) 110 000 (760)Yield point, psi (MPa) 80 000 (550)Elongation in 2 in. or 50 mm, % 12Reduction of area, % 25A183 1428.2.1 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 atleas
29、t two threads in starting on the bolt. When engaged for thethickness of the nut plus two threads, the torque shall fallwithin 10110 lbf-ft (14149 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
30、 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
31、 The manufacturer shall afford the purchasers 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 manufacturers operations. All test
32、s 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 cas
33、eof 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, amanufacturers certification shall be furnished to the purchaserthat the material was produced and tested in conformance witht
34、his 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 for
35、m froman electronic data interchange (EDI) transmission shall beregarded as having the same validity as a counterpart printed inthe certifiers facility. The content of the EDI transmitteddocument must meet the requirements of the invoked ASTMstandard(s) and conform to any existing EDI agreement be-t
36、ween 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
37、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 an
38、d 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 m
39、anufacturer 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 ont
40、he 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
41、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 standa
42、rd 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
43、 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, whi
44、ch 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,U
45、nited 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 website(www.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:/ 143
