1、Designation: A66 07 (Reapproved 2013)Standard Specification forSteel Screw Spikes1This standard is issued under the fixed designation A66; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in paren
2、theses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers steel screw spikes used asfastenings betwee
3、n railroad rails, tie plates, and ties.1.2 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.1.3 This standard does not purport to address
4、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-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A370 Test Methods
5、and Definitions for Mechanical Testingof Steel ProductsA700 Practices for Packaging, Marking, and Loading Meth-ods for Steel Products for Shipment3. Ordering Information3.1 Orders for screw spikes under this specification shallinclude the following information as appropriate:3.1.1 Quantity (weight),
6、3.1.2 Style of HeadA, B, or C3or other, including draw-ings if necessary,3.1.3 Type of Pointpilot point or not pointed,3.1.4 Dimensionsdiameter and length, under head,3.1.5 Supplementary Requirement if to apply (see S1)3.1.6 Certification and Test Report (see 11.1).4. Manufacture4.1 The steel shall
7、be made by any of the followingprocesses: electric-furnace or basic-oxygen.4.2 The steel may be cast by a continuous process, or iningots.4.3 The heads and threads of the spikes may be formed byhot- or cold-forming methods.5. Mechanical Requirements5.1 Tensile Requirements:5.1.1 The material as repr
8、esented by a tension test of afull-size finished spike, or a specimen machined from afinished spike, shall conform to the requirements prescribed inTable 1.5.1.2 Tension tests of full-size spikes shall be performedusing a 10 wedge as described in Test Methods A370,Supplement S11.1.5.5.1.3 Where the
9、design of the spike is such that full-sizetesting is impracticable, the tension test may be made on aspecimen machined from a finished spike. Dimensions of thetest specimen shall conform to the requirements of TestMethods A370.5.1.4 When a machined specimen test is performed, theelongation requireme
10、nt prescribed in Table 1 shall apply. If ascrew spike is machined and the specimen is tested andreported. the elongation meets or exceeds 18 %, the bend testis not required. See 5.2.5.1.5 The yield point shall be determined by the drop of thebeam or halt in the gage of the testing machine.5.2 Bend R
11、equirementThe body of a full-size finishedspike shall withstand the bend test described in Table 2 withoutcracking on the outside of the bent portion.6. Dimensions and Permissible Variations6.1 The finished spikes shall conform to the dimensionsspecified by the purchaser, subject to the permissible
12、variationsprescribed in Table 3.6.2 The threads shall be sharp and true to gage and of thedesign specified by the purchaser.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
13、Rails and Accessories.Current edition approved April 1, 2013. Published May 2013. Originallyapproved in 1916. Last previous edition approved in 2007 as A66 07. DOI:10.1520/A0066-07R13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm
14、.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Consult manufacturers literature for design details for A, B, and C-style heads.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-29
15、59. United States17. Workmanship, Finish, and Appearance7.1 The head of the finished spikes shall be concentric withand firmly joined to the body.7.2 The material shall be free of injurious imperfections andshall have a workmanlike finish.8. Number of Tests and Retests8.1 One tension test and one be
16、nd test shall be made fromeach lot of 100 kegs or fraction thereof.8.2 If the percentage of elongation of a machined tensiontest specimen is less than that specified in Table 1 and any partof the fracture is more than34 in. (19 mm) from the center ofthe gage length, as indicated by scribe scratches
17、marked on thespecimen before testing, a retest shall be allowed.8.3 If, during the tension or bend tests, a previously undis-covered material or manufacturing flaw should be disclosedthat interferes with the test or the interpretation of results, thesubstitution of another sample spike shall be perm
18、itted after itis demonstrated to the satisfaction of the purchaser or hisrepresentative, that the condition is not typical of the remainderof the lot.8.4 If any test specimen fails because of mechanical reasonssuch as failure of testing equipment or improper specimenpreparation, it may be discarded
19、and another specimen taken.9. Inspection9.1 The manufacturer shall afford the purchasers inspectorall reasonable facilities necessary to satisfy that the material isbeing produced and furnished in accordance with the specifi-cation. Mill inspection by the purchaser shall not interfereunnecessarily w
20、ith the manufacturers operations. All tests andinspections shall be made at the place of manufacture, unlessotherwise agreed upon.10. Rejection and Rehearing10.1 Material that fails to conform to the requirements ofthis specification may be rejected. Rejections shall be reportedto the manufacturer o
21、r supplier promptly and in writing. In caseof dissatisfaction with the test results, the manufacturer orsupplier may make claim for a rehearing.11. Certification and Test Report11.1 When specified in the purchaser order or contract, amanufacturers certification shall be furnished to the purchasertha
22、t the material was produced and tested in accordance withthis specification and has been found to meet the requirements.11.2 When specified in the purchase order or contract, areport of the chemical and mechanical test results shall befurnished.11.3 A Material Test Report, Certificate of Inspection,
23、 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 certifiers facility. The content of the EDI transmitteddocument must meet the requirements of the invoked ASTM
24、standard(s) and conform to any existing EDI agreement be-tween the purchaser and the supplier.11.4 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 responsi
25、ble for the content of the report.12. Product Marking12.1 The manufacturers symbol shall appear on the head ofthe spike.12.2 Bar Coding:12.2.1 The Automotive Industry Action Group (AIAG) BarCode Standard for Primary Metals for Steel Products may beconsidered as a possible auxiliary method of identif
26、ication onthe containers. Use of this method shall be by agreementbetween purchaser and supplier.13. U. S. Government Procurement13.1 When specified in the contract or purchase order,material shall be prepared for shipment and storage in accor-dance with the requirements of Practices A700.14. Keywor
27、ds14.1 rails; railway applications; steel screw spikes; trackspikesTABLE 1 Tension Test RequirementsSpecimenFull size MachinedTensile strength, min, psi (MPa) 60 000(415)60 000(415)Yield point, min 30 000(205)30 000(250)Elongation in 2 in. or 50 mm, min, % 18TABLE 2 Bend Test RequirementBody bend, c
28、old 90around pin 3 times spike diameterTABLE 3 Permissible Variations in DimensionsOver Underin. mm in. mmDiameter, unthreaded portion132 0.8 . .Diameter, threaded portion132 0.8 . .Reach of head18 3.2116 1.6Width across flats 0 0.0132 0.8Length18 3.218 3.2A66 07 (2013)2SUPPLEMENTARY REQUIREMENTSThe
29、 following supplementary requirement shall apply only when specified by the purchaser in theinquiry, contract, and order.S1. Copper may be specified to a minimum of 0.20 %. Themaximum copper content shall be determined upon mutualagreement between the purchaser and the manufacturer.ASTM Internationa
30、l 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 o
31、wn 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 a
32、ddressed 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,
33、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 website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).A66 07 (2013)3
