1、Designation: A759 10 (Reapproved 2016)Standard Specification forCarbon Steel Crane Rails1This standard is issued under the fixed designation A759; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、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 crane rails ofspe
3、cial designs only, and nominal weights of 104 lb/yd (51.6kg/m) through 175 lb/yd (86.8 kg/m) for crane runway use.1.2 When standard tee rail sections are desired, they shall beordered in accordance with Specification A1.1.3 Supplementary Requirements S1 through S3 of anoptional nature are provided.
4、They shall apply only whenspecified by the purchaser in the order.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 Docum
5、ents2.1 ASTM Standards:2A1 Specification for Carbon Steel Tee RailsA700 Guide for Packaging, Marking, and Loading Methodsfor Steel Products for Shipment3. Ordering Information3.1 Orders for crane rails under this specification shallinclude the following information as appropriate:3.1.1 Quantity (ton
6、s or pieces),3.1.2 ASTM designation and year of issue,3.1.3 Complete identification of section with dimensionaldrawing if required (see Section 2),3.1.4 Length of rails or length of runway as required, (see6.3),3.1.5 Arrangement of drilled bolt holes with dimensionaldrawing if required,3.1.6 Supplem
7、entary requirements that shall apply (see S1through S3), and3.1.7 Certification and Test Report Requirements (see Sec-tion 10).4. Manufacture4.1 Melting PracticeThe steel shall be made by any of thefollowing processes: basic-oxygen or electric-furnace.4.1.1 The steel may be cast by a continuous proc
8、ess, or iningots.4.2 DiscardA sufficient discard shall be made to securefreedom from injurious segregation and piping.4.3 Control Cooling:4.3.1 Rails shall be control cooled in accordance with thefollowing procedure, except when produced from vacuum-degassed steel or control cooled blooms, in which
9、case the railsmay be air cooled and 4.3.2 4.3.6 are not applicable.4.3.2 All rails shall be cooled on hot beds or runways untilfull transformation is accomplished, and then charge immedi-ately into the containers. In no case should the rail be chargedbelow 725F (386C).4.3.3 The temperature of the ra
10、ils before charging shall bedetermined with reliable equipment at the head of the rail atleast 12 in. (305 mm) from the end.4.3.4 The cover shall be placed on the container immedi-ately after completion of the charge and shall remain in placefor at least 10 h. After the removal or raising of the lid
11、 of thecontainer, no rails shall be removed until the temperature of thetop layer of rails has fallen to 300F (149C) or lower.4.3.5 The temperature between an outside rail and theadjacent rail in the bottom tier of the container at a point notless than 12 in. (305 mm), nor more than 36 in. (914 mm),
12、 fromthe rail end shall be recorded. This temperature shall be thecontrol for judging rate of cooling.4.3.6 The container shall be so protected and insulated thatthe control temperature shall not drop below 300F (149C) in7 h from the time that the bottom tier is placed in the container.If this cooli
13、ng requirement is not met, the rails shall beconsidered control cooled provided the temperature at alocation not less than 12 in. (305 mm) from the end of a rail atapproximately the center of the middle tier does not drop below300F (149C) in less than 15 h.1This specification is under the jurisdicti
14、on 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 May 1, 2016. Published May 2016. Originallyapproved in 1978. Last previous edition approved in 2010 as A759 10. DOI:10.1
15、520/A0759-10R16.2For 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.Copyright ASTM International, 100 Barr Harbor
16、 Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.4 High Strength RailsWhen specified in accordancewith Supplementary Requirement S1, all or a portion of thequantity of rails ordered shall be high strength.4.5 ChamferingWhen specified in accordance withSupplementary Requirement
17、S2, the ends of rails shall bechamfered.4.6 Ends Prepared for Electric Arc WeldingWhen rails areto be joined by electric arc welding, special end preparationmay be available from individual manufacturers as may bedeveloped in accordance with Supplementary Requirement S3.5. Chemical Requirements5.1 H
18、eat or Cast AnalysisAn analysis for each heat or castof steel shall be made by the manufacturer to determine thepercentage of the elements specified in Table 1. The analysisshall be made from a test sample taken preferably during thepouring of the heat or cast and shall conform to the require-ments
19、in Table 1.5.2 When ladle tests are not available, finished materialrepresenting the heat may be product tested. The productanalysis allowance beyond the limits of the specified ladleanalysis shall be within the limits for product analyses speci-fied in Table 2.5.3 Alternate chemistries may be allow
20、ed when agreed to bypurchaser and supplier.6. Permissible Variations of Dimension, Weight, andOther Physical Attributes6.1 Section:6.1.1 The section of the rail shall conform to the designspecified by the purchaser.6.1.2 A variation of132 in. (0.8 mm) less or132 in. greaterthan the specified height
21、will be permitted.6.1.3 A variation of116 in. (1.6 mm) in the width of eitherflange will be permitted for sections other than 175 lb/yd (86.8kg/m), but the variation in total width of base shall not exceed116 in. (1.6 mm). For 175-lb/yd (86.8-kg/m) sections a varia-tion of332 in. (2.4 mm) in the wid
22、th of either flange will bepermitted but the variation in total width of base shall notexceed332 in.6.2 WeightA variation of 1 % from the calculated weightof section as applied to the entire order will be permitted.6.3 Length:6.3.1 The standard length of rail shall be 80 ft (24.4 m) or 39ft (11.9 m)
23、 when measured at a temperature of 60F (15.5C).6.3.2 Up to 9% for 39 ft rail or 15% for 80 ft rail of theentire order will be accepted in lengths shorter than standardvarying by 1 ft (0.3 M) as follows: 79, 78, 77, 75, 70, 65, 60,39, 38, 37, 36, 33, 30, 27, and 25 ft.6.3.3 Special cut lengths to com
24、plete an overall runwaylength may be specified.6.3.4 A variation of716 in. (11.1 mm) for 39 ft rails or78 in.(22 mm) for 80 ft rails from the specified length of individualrails will be permitted.6.4 End Finish:6.4.1 Rails shall be milled, abrasive wheel cut, or ground tolength, with a variation in
25、end squareness of not more than132in. (0.8 mm) allowed.6.4.2 Harmful burrs on the ends shall be removed.6.5 Drilling:6.5.1 Circular holes for joint bolts, when specified, shall bedrilled to conform to the specified drawings and dimensions.6.5.2 A variation of116 in. (1.6 mm) over and nothing underin
26、 the size of the bolt holes shall be permitted.6.5.3 A variation of132 in. (0.8 mm) in the location of theholes will be permitted.7. Workmanship, Finish, and Appearance7.1 All rails shall have a workmanlike finish and be free ofvarious imperfections that may detrimentally affect their suit-ability f
27、or the service for which they are intended.7.2 Rails shall be straightened cold in a press or rollermachine to be commercially straight, as determined by visualinspection.7.3 Deviations in the vertical and horizontal alignmentthroughout the length of the rail shall be uniform. Sharpdeviations in eit
28、her direction shall not be acceptable.7.4 Deviations of the lateral (horizontal) line in eitherdirection at the rail ends shall not exceed a maximum ordinateof 0.040 in. (1 mm) in 3 ft (0.9 m).7.5 All ordinate determinations shall be made on the con-cave side, between the rail surface and the straig
29、htedge.7.6 Rails presented for inspection that do not conform to therequirements of 7.1 7.4 may be reconditioned by themanufacturer.8. Inspection8.1 The manufacturer shall afford the purchasers inspectorall reasonable facilities necessary to satisfy that the material isbeing produced and furnished i
30、n accordance with this specifi-cation. Mill inspection by the purchaser shall not interfereunnecessarily with the manufacturers operations. All tests andinspections shall be made at the place of manufacture, unlessotherwise agreed upon.TABLE 1 Chemical Requirements, %Carbon 0.67 to 0.84Manganese 0.7
31、0 to 1.10Phosphorus, max 0.04Sulfur, max 0.05Silicon 0.10 to 0.50TABLE 2 Product Analysis Allowance Beyond Limits of SpecifiedChemical AnalysisUnder Minimum Limit, % Over Maximum Limit, %Carbon 0.04 0.04Manganese 0.06 0.06Phosphorus . . . 0.008Sulfur . . . 0.008Silicon 0.02 0.02AAContinuously cast a
32、llowances shall be 0.05 % over maximum limit for silicon.A759 10 (2016)29. Rejection and Rehearing9.1 Material that fails to conform to the requirements of thisspecification may be rejected. Rejections shall be reported tothe manufacturer or supplier promptly and in writing. In caseof dissatisfactio
33、n with the test results, the manufacturer orsupplier may make claim for a rehearing.10. Certification10.1 When specified in the purchase order or contract, amanufacturers certification shall be furnished to the purchaserthat the material was produced and tested in accordance withthis specification a
34、nd has been found to meet the requirements.10.2 When specified in the purchase order or contract, areport of the chemical and mechanical test results shall befurnished.10.3 A material Test Report, Certificate of Inspection orsimilar document printed from or used in electronic from anelectronic data
35、interchange (EDI) transmission shall be re-garded 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-tween the purchaser and
36、the supplier.10.4 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.11. Product Marking11.1 The name or brand of th
37、e manufacturer, the year andmonth of manufacture, and the weight and section designationof the rail shall be legibly rolled in raised letters and figures onthe web.11.2 The heat number, the rail letter, and the ingot numberor a designation for the strand and bloom for continuously castrail shall be
38、hot stamped into the web of each rail where it willnot be covered by the joint bars.11.3 The requirements of 11.1 and 11.2 shall not apply whensections shorter than 25 ft (7.6 m) are specified, since brandingor stamping, or both, may be incomplete or missing entirely.11.4 Bar Coding:11.4.1 The autom
39、otive Industry Action Group (AIAG) BarCode Standard for Primary Metals for Steel Products may beconsidered as an auxiliary method of identification. Use of thismethod shall be by agreement between purchaser and supplier.12. U.S. Government Procurement12.1 When specified in the contract or purchase o
40、rder,material shall be prepared for shipment and storage in accor-dance with the requirements of Practices A700.13. Keywords13.1 rails; railway application; steel crane rails; steel railsSUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall apply only when specified by the purchas
41、er in theinquiry, order, or contract.S1. High Strength RailsS1.1 Heat-treated, head hardened, or alloy rails may bespecified in accordance with the manufacturers standardpractice. High strength rails shall conform to a Brinell hardnessnumber range from 321 to 388 when the decarburized surfacehas bee
42、n removed.S2. ChamferingS2.1 Chamfered ends may be specified. Chamfering willconsist of grinding a bevel approximately116 in. (1.6 mm) backand18 in. (3.2 mm) from the top and sides of the end face ofthe rail head, when specified.S3. Ends Prepared for Electric Arc WeldingS3.1 The purchaser shall cons
43、ult with the manufacturer as tospecial end preparation if crane rails are to be supplied forwelding.A759 10 (2016)3ASTM 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 ad
44、vised 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, eithe
45、r 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.
46、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. Indiv
47、idual 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:/ 10 (2016)4
