1、Designation:A52496(Reapproved 2012)Standard Specification forSeamless Carbon Steel Pipe for Atmospheric and LowerTemperatures1This standard is issued under the fixed designation A524;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,th
2、e 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.1.Scope1.1 This specification2covers seamless carbon steel pipeintended primarily for service at atmospheric and lowertemper
3、atures,NPS18to 26 inclusive,with nominal(average)wall thickness as given in ANSI B36.10.Pipe having otherdimensions may be furnished,provided such pipe complieswith all other requirements of this specification.Pipe orderedto this specification shall be suitable both for welding,and forbending,flangi
4、ng,and similar forming operations.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.NOTE1The dimensionless designator NPS(nominal pipe s
5、ize)hasbeen substituted in this standard for such traditional terms as“nominaldiameter,”“size,”and“nominal size.”1.3 The following hazard caveat applies to the test methodsportion,Section 16,only.This standard does not purport toaddress all of the safety concerns,if any,associated with itsuse.It is
6、the responsibility of the user of this standard toestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3A530/A530M Specification for General Requirements forSpecialized Carbon and Alloy Stee
7、l PipeE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 American National Standards Institute Standard:B36.10 Welded and Seamless Wrought Steel Pipe43.Ordering Information3.1 Orders for material under this specification shouldinclude the following,
8、as required,to describe the desiredmaterial adequately:3.1.1 Quantity(feet or number of lengths),3.1.2 Name of material(seamless carbon steel pipe),3.1.3 Grade(Table 1 and Table 2),3.1.4 Manufacture(hot finished or cold drawn),3.1.5 Size(either nominal wall thickness and weight class orschedule numb
9、er,or both,or outside diameter and nominalwall thickness,ANSI B36.10),3.1.6 Length(17),3.1.7 Optional requirements(Section 8 and Section 11 ofSpecification A530/A530M),3.1.8 Test report required(Certification Section of Specifi-cation A530/A530M),3.1.9 Specification designation,3.1.10 End use of mat
10、erial,and3.1.11 Special requirements.4.General Requirements4.1 Material furnished to this specification shall conform tothe applicable requirements of the current edition of Specifi-cation A530/A530M unless otherwise provided herein.5.Materials and Manufacture5.1 Process:5.1.1 The steel shall be kil
11、led steel made by one or more ofthe following processes:open-hearth,electric-furnace,orbasic-oxygen.5.1.2 The steel shall be made to fine grain practice.5.1.3 Steel may be cast in ingots or may be strand cast.When steel of different grades are sequentially strand cast,identification of the resultant
12、 transition material is required.The producer shall remove the transition material by anyestablished procedure that positively separates the grades.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of Subc
13、ommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved March 1,2012.Published November 2012.Originallyapproved in 1965.Last previous edition approved in 2005 as A524 96(2005).DOI:10.1520/A0524-96R12.2For ASME Boiler and Pressure Vessel Code Applications see related Specifi-cation S
14、A-524 in Section II of that Code.3For 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.4Available from American National
15、 Standards Institute,11 West 42nd St.,13thFloor,New York,NY 10036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);5.1.4 Pipe NPS 112and under may be either hot finished orcold drawn.5.1.5 Unless
16、otherwise specified,pipe NPS 2 and over shallbe furnished hot finished.When agreed upon between themanufacturer and purchaser,cold-drawn pipe may be fur-nished.5.2 Heat TreatmentAll hot-finished and cold-drawn pipeshall be reheated to a temperature above 1550 F(845C)andfollowed by cooling in air or in the cooling chamber of acontrolled atmosphere furnace.6.Chemical Composition6.1 The steel shall conform to the chemical requirementsprescribed in Table 1.7.Heat Analysis7.1 An analysis of each heat
