1、Designation: A 53/A 53M 07Standard Specification forPipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded andSeamless1This standard is issued under the fixed designation A 53/A 53M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision,
2、the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) 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. Scope*1.1 This specification2cove
3、rs seamless and welded blackand hot-dipped galvanized steel pipe in NPS18 to NPS 26 DN6 to DN 650 (Note 1), inclusive, with nominal wall thickness(Note 2) as given in Table X2.2 and Table X2.3. It shall bepermissible to furnish pipe having other dimensions providedthat such pipe complies with all ot
4、her requirements of thisspecification. Supplementary requirements of an optional na-ture are provided and shall apply only when specified by thepurchaser.NOTE 1The dimensionless designators NPS (nominal pipe size) DN(diameter nominal) have been substituted in this specification for suchtraditional t
5、erms as “nominal diameter,” “size,” and “nominal size.”NOTE 2The term nominal wall thickness has been assigned for thepurpose of convenient designation, existing in name only, and is used todistinguish it from the actual wall thickness, which may vary over orunder the nominal wall thickness.1.2 This
6、 specification covers the following types andgrades:1.2.1 Type FFurnace-butt-welded, continuous weldedGrade A,1.2.2 Type EElectric-resistance-welded, Grades A and B,and1.2.3 Type SSeamless, Grades A and B.NOTE 3See Appendix X1 for definitions of types of pipe.1.3 Pipe ordered under this specificatio
7、n is intended formechanical and pressure applications and is also acceptable forordinary uses in steam, water, gas, and air lines. It is suitablefor welding, and suitable for forming operations involvingcoiling, bending, and flanging, subject to the following quali-fications:1.3.1 Type F is not inte
8、nded for flanging.1.3.2 If Type S or Type E is required for close coiling orcold bending, Grade A is the preferred grade; however, this isnot intended to prohibit the cold bending of Grade B pipe.1.3.3 Type E is furnished either nonexpanded or coldexpanded at the option of the manufacturer.1.4 The v
9、alues stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem is to be used independently of the other.1.5 The following precautionary caveat pertains only to thetest method portion, S
10、ections 7, 8, 9, 13, 14, and 15 of thisspecification: This standard does not purport to address all ofthe safety 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 r
11、egulatory requirements prior to use.1.6 The text of this specification contains notes or footnotes,or both, that provide explanatory material. Such notes andfootnotes, excluding those in tables and figures, do not containany mandatory requirements.2. Referenced Documents2.1 ASTM Standards:3A 90/A 90
12、M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 530/A 530M Specification for General Requirements forSpecialized Carbon and Alloy Steel PipeA 700 Practices for Packaging, Ma
13、rking, and LoadingMethods for Steel Products for ShipmentA 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel ProductsA 865 Specification for Threaded Couplings, Steel, Blackor Zinc-Coated (Galvanized) Welded or Seamless, for Usein Steel Pipe Joints1This specification is unde
14、r the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Sept. 1, 2007. Published October 2007. Originallyapproved in 1915. Last previous edition approved in 2
15、006 as A 53/A 53M 06a.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-53 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
16、information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.B6 Specification for ZincE29 Practice for
17、Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 213 Practice for Ultrasonic Examination of Metal Pipeand TubingE 273 Practice for Ultrasonic Examination of the WeldZone of Welded Pipe and TubingE 309 Practice for Eddy-Current Examination of Steel Tu-bular Products
18、Using Magnetic SaturationE 570 Practice for Flux Leakage Examination of Ferromag-netic Steel Tubular ProductsE 1806 Practice for Sampling Steel and Iron for Determi-nation of Chemical Composition2.2 ANSI Standards:ASC X124B1.20.1 Pipe Threads, General Purpose42.3 ASME Standard:B36.10M Welded and Sea
19、mless Wrought Steel Pipe52.4 Military Standards:MIL-STD-129 Marking for Shipment and Storage6MIL-STD-163 Steel Mill Products Preparation for Ship-ment and Storage62.5 Federal Standards:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)7Fed. Std. No 183 Continuous Identification Marking of Irona
20、nd Steel Products72.6 API Standard:5B Specification for Threading, Gauging, and Thread In-spection of Casing, Tubing, and Line Pipe Threads83. Ordering Information3.1 Information items to be considered, if appropriate, forinclusion in the purchase order are as follows:3.1.1 Specification designation
21、 (A 53 or A 53M, includingyear-date),3.1.2 Quantity (feet, metres, or number of lengths),3.1.3 Grade (A or B),3.1.4 Type (F, E, or S; see 1.2),3.1.5 Finish (black or galvanized),3.1.6 Size (either nominal (NPS) DN and weight class orschedule number, or both; or outside diameter and wallthickness, se
22、e Table X2.2 and Table X2.3),3.1.7 Length (specific or random, see Section 16),3.1.8 End finish (plain end or threaded, Section 11),3.1.8.1 Threaded and coupled, if desired,3.1.8.2 Threads only (no couplings), if desired,3.1.8.3 Plain end, if desired,3.1.8.4 Couplings power tight, if desired,3.1.8.5
23、 Taper-tapped couplings for NPS 2 DN 50 andsmaller, if desired,3.1.9 Close coiling, if desired (see 7.2.2),3.1.10 Nondestructive electric test for seamless pipe (see9.2),3.1.11 Certification (see Section 20),3.1.12 Report of the length of the end effect, if desired (see9.2.7),3.1.13 Marking (see Sec
24、tion 21),3.1.14 End use of pipe,3.1.15 Special requirements,3.1.16 Supplementary requirements, if any,3.1.17 Selection of applicable level of preservation andpackaging and level of packing required, if other than asspecified or if MIL-STD-163 applies (see 22.1), and3.1.18 Packaging and package marki
25、ng, if desired (see23.1).4. Materials and Manufacture4.1 The steel for both seamless and welded pipe shall bemade by one or more of the following processes: open-hearth,electric-furnace, or basic-oxygen.4.2 If steels of different grades are sequentially strand cast,identification of the resultant tr
26、ansition material is required.The steel producer shall remove the transition material by anyestablished procedure that positively separates the grades.4.3 The weld seam of electric-resistance welded pipe inGrade B shall be heat treated after welding to a minimum of1000 F 540 C so that no untempered
27、martensite remains, orotherwise processed in such a manner that no untemperedmartensite remains.4.4 When pipe is cold expanded, the amount of expansionshall not exceed 112 % of the specified outside diameter of thepipe.5. Chemical Composition5.1 The steel shall conform to the requirements as tochemi
28、cal composition given in Table 1 and the chemical4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.5Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York,
29、NY 10016-5990, http:/www.asme.org.6Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-50987Available from General Services Administration, Washington, DC 20405.8Available from American Petroleum Institute (API), 1220 L. St., NW, W
30、ash-ington, DC 20005-4070, http:/api-ec.api.org.TABLE 1 Chemical RequirementsComposition, max, %Carbon Manganese Phosphorus Sulfur CopperANickelAChromiumAMolybdenumAVanadiumAType S (seamless pipe)Grade A 0.25 0.95 0.05 0.045 0.40 0.40 0.40 0.15 0.08Grade B 0.30 1.20 0.05 0.045 0.40 0.40 0.40 0.15 0.
31、08Type E (electric-resistance-welded)Grade A 0.25 0.95 0.05 0.045 0.50 0.40 0.40 0.15 0.08Grade B 0.30 1.20 0.05 0.045 0.50 0.40 0.40 0.15 0.08Type F (furnace-welded pipe)Grade A 0.30 1.20 0.05 0.045 0.40 0.40 0.40 0.15 0.08AThe total composition for these five elements shall not exceed 1.00 %.A 53/
32、A 53M 072analysis shall be in accordance with Test Methods, Practices,and Terminology A 751.6. Product Analysis6.1 The purchaser is permitted to perform an analysis of twopipes from each lot of 500 lengths, or fraction thereof. Samplesfor chemical analysis, except for spectrographic analysis, shallb
33、e taken in accordance with Practice E 1806. The chemicalcomposition thus determined shall conform to the requirementsgiven in Table 1.6.2 If the analysis of either pipe does not conform to therequirements given in Table 1, analyses shall be made onadditional pipes of double the original number from
34、the samelot, each of which shall conform to the specified requirements.7. Mechanical Properties7.1 Tension Test:7.1.1 For tension tests other than transverse weld tensiontests, the yield strength corresponding to a permanent offset of0.2 % of the gage length or to an extension of 0.5 % of the gagele
35、ngth under load, the tensile strength, and the elongation in 2in. or 50 mm shall be determined, and the tension test resultsshall conform to the applicable tensile property requirementsgiven in Table 2.7.1.2 For transverse weld tension tests, the tensile strengthshall be determined, and the tension
36、test results shall conformto the applicable tensile strength requirement given in Table 2.7.1.3 Electric-resistance-welded pipe NPS 8 DN 200 orlarger shall be tested using two transverse test specimens, onetaken across the weld and one taken opposite the weld.7.1.4 Transverse tension test specimens
37、shall be approxi-mately 112 in. 38 mm wide in the gage length and shallrepresent the full wall thickness of the pipe from which the testspecimens were cut.7.2 Bend Test:7.2.1 For pipe NPS 2 DN 50 or smaller, a sufficient lengthof pipe shall be capable of being bent cold through 90 arounda cylindrica
38、l mandrel, the diameter of which is twelve times thespecified outside diameter of the pipe, without developingcracks at any portion and without opening the weld.7.2.2 If ordered for close coiling, the pipe shall stand beingbent cold through 180 around a cylindrical mandrel, thediameter of which is e
39、ight times the specified outside diameterof the pipe, without failure.7.2.3 Double-extra-strong pipe over NPS 114 DN 32 neednot be subjected to the bend test.7.3 Flattening Test:7.3.1 The flattening test shall be made on welded pipe overNPS 2 DN 50 in extra-strong weight or lighter.7.3.2 Seamless Pi
40、pe:7.3.2.1 Although testing is not required, pipe shall becapable of meeting the flattening test requirements of Supple-mentary Requirement S1, if tested.7.3.3 Electric-Resistance-Welded Pipe:7.3.3.1 A test specimen at least 4 in. 100 mm in lengthshall be flattened cold between parallel plates in th
41、ree steps,with the weld located either 0 or 90 from the line of directionof force as required by 7.3.3.2 or 7.3.3.3, whichever isapplicable. During the first step, which is a test for ductility ofthe weld, except as allowed by 7.3.5, 7.3.6, and 7.3.7, no cracksor breaks on the inside or outside surf
42、ace at the weld shall bepresent before the distance between the plates is less than twothirds of the specified outside diameter of the pipe.As a secondstep, the flattening shall be continued as a test for ductilityaway from the weld. During the second step, except as allowedby 7.3.6 and 7.3.7, no cr
43、acks or breaks on the inside or outsidesurface away from the weld shall be present before the distancebetween the plates is less than one third of the specified outsidediameter of the pipe but is not less than five times the specifiedwall thickness of the pipe. During the third step, which is a test
44、for soundness, the flattening shall be continued until the testspecimen breaks or the opposite walls of the test specimenmeet. Evidence of laminated or unsound material or of incom-plete weld that is revealed by the flattening test shall be causefor rejection.7.3.3.2 For pipe produced in single leng
45、ths, the flatteningtest specified in 7.3.3.1 shall be made using a test specimentaken from each end of each length of pipe. The tests from eachend shall be made alternately with the weld at 0 and at 90from the line of direction of force.7.3.3.3 For pipe produced in multiple lengths, the flatteningte
46、st specified in 7.3.3.1 shall be made as follows:(1) Test specimens taken from, and representative of, thefront end of the first pipe intended to be supplied from eachcoil, the back end of the last pipe intended to be supplied fromeach coil, and each side of any intermediate weld stop locationshall
47、be flattened with the weld located at 90 from the line ofdirection of force.(2) Test specimens taken from pipe at any two locationsintermediate to the front end of the first pipe and the back endof the last pipe intended to be supplied from each coil shall beflattened with the weld located at 0 from
48、 the line of directionof force.7.3.3.4 For pipe that is to be subsequently reheated through-out its cross section and hot formed by a reducing process, themanufacturer shall have the option of obtaining the flatteningtest specimens required by 7.3.3.2 or 7.3.3.3, whichever isapplicable, either prior
49、 to or after such hot reducing.TABLE 2 Tensile RequirementsGrade A Grade BTensile strength, min, psi MPa 48 000 330 60 000 415Yield strength, min, psi MPa 30 000 205 35 000 240Elongation in 2 in. or 50 mmA,BA,BAThe minimum elongation in 2 in. 50 mm shall be that determined by thefollowing equation:e 5 625 000 1940 A0.2/U0.9where:e = minimum elongation in 2 in. or 50 mm in percent, rounded to the nearestpercent,A = the lesser of 0.75 in.2500 mm2 and the cross-sectional area of thetension test specimen, calculated using t
