1、Designation: A53/A53M 10Standard Specification forPipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded andSeamless1This standard is issued under the fixed designation A53/A53M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the
2、year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () 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 specification2covers se
3、amless 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 other r
4、equirements 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 terms
5、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 spec
6、ification 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 specification is
7、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 intended
8、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 values
9、 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 shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1
10、.5 The following precautionary caveat pertains only to thetest method portion, Sections 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 establis
11、h appro-priate safety and health practices and determine the applica-bility of regulatory 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 contai
12、nany mandatory requirements.2. Referenced Documents2.1 ASTM Standards:3A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA530/A530M Specification for General Requirements
13、forSpecialized Carbon and Alloy Steel PipeA700 Practices for Packaging, Marking, and Loading Meth-ods for Steel Products for Shipment1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.09
14、on Carbon Steel Tubular Products.Current edition approved Oct. 1, 2010. Published November 2010. Originallyapproved in 1915. Last previous edition approved in 2007 as A53/A53M07. DOI:10.1520/A0053_A0053M-10.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-53 in S
15、ection 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.1*A Summary of Changes section appears
16、 at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.A751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsA865 Specification for Threaded Couplings, Steel, Black orZinc-Coated (
17、Galvanized) Welded or Seamless, for Use inSteel Pipe JointsB6 Specification for ZincE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE213 Practice for Ultrasonic Testing of Metal Pipe andTubingE273 Practice for Ultrasonic Testing of the Weld Zone ofWe
18、lded Pipe and TubingE309 Practice for Eddy-Current Examination of Steel Tu-bular Products Using Magnetic SaturationE570 Practice for Flux Leakage Examination of Ferromag-netic Steel Tubular ProductsE1806 Practice for Sampling Steel and Iron for Determina-tion of Chemical Composition2.2 ANSI Standard
19、s:ASC X124B1.20.1 Pipe Threads, General Purpose42.3 ASME Standard:B36.10M Welded and Seamless 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 f
20、or Shipment (Civil Agencies)7Fed. Std. No. 183 Continuous Identification Marking of Ironand 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 appro
21、priate, forinclusion in the purchase order are as follows:3.1.1 Specification designation (A53 or A53M, 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
22、 and weight class orschedule number, or both; or outside diameter and wallthickness, see 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
23、desired,3.1.8.3 Plain end, if desired,3.1.8.4 Couplings power tight, if desired,3.1.8.5 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),3.1.1
24、2 Report of the length of the end effect, if desired (see9.2.7),3.1.13 Marking (see Section 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
25、asspecified or if MIL-STD-163 applies (see 22.1), and3.1.18 Packaging and package marking, 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 ste
26、els of different grades are sequentially strand cast,identification of the resultant transition 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
27、 shall be heat treated after welding to a minimum of1000 F 540 C so that no untempered 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 th
28、epipe.5. Chemical Composition5.1 The steel shall conform to the requirements as tochemical composition given in Table 1 and the chemicalanalysis shall be in accordance with Test Methods, Practices,and Terminology A751.6. Product Analysis6.1 The purchaser is permitted to perform an analysis of twopip
29、es from each lot of 500 lengths, or fraction thereof. Samplesfor chemical analysis, except for spectrographic analysis, shallbe taken in accordance with Practice E1806. The chemicalcomposition thus determined shall conform to the requirementsgiven in Table 1.6.2 If the analysis of either pipe does n
30、ot conform to therequirements given in Table 1, analyses shall be made onadditional pipes of double the original number from the samelot, each of which shall conform to the specified requirements.7. Mechanical Properties7.1 Tension Test:4Available from American National Standards Institute (ANSI), 2
31、5 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, NY 10016-5990, http:/www.asme.org.6Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section
32、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, Wash-ington, DC 20005-4070, http:/api-ec.api.org.A53/A53M 1027.1.1 For tension tests other than transverse weld t
33、ensiontests, the yield strength corresponding to a permanent offset of0.2 % of the gage length or to an extension of 0.5 % of the gagelength 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
34、property requirementsgiven in Table 2.7.1.2 For transverse weld tension tests, the tensile strengthshall be determined, and the tension 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 teste
35、d using two transverse test specimens, onetaken across the weld and one taken opposite the weld.7.1.4 Transverse tension test specimens 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
36、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 cylindrical 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
37、.2 If ordered for close coiling, the pipe shall stand beingbent cold through 180 around a cylindrical mandrel, thediameter of which is eight 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 Fl
38、attening 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 Pipe: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 Elec
39、tric-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 three 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,
40、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 surface 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 fla
41、ttening 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 cracks 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 out
42、sidediameter of the pipe but is not less than five times the specifiedwall thickness of the pipe. During the third step, which is a testfor soundness, the flattening shall be continued until the testspecimen breaks or the opposite walls of the test specimenmeet. Evidence of laminated or unsound mate
43、rial 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 lengths, 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 alt
44、ernately 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 flatteningtest 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 e
45、achcoil, the back end of the last pipe intended to be supplied fromeach coil, and each side of any intermediate weld stop locationshall 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
46、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 the line of directionof force.TABLE 1 Chemical RequirementsComposition, max, %Carbon Manganese Phosphorus Sulfur CopperANickelAChromiumAMolybdenumAVanadiumAType S
47、(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 0.08Type E (electric-resistance-welded)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 0.08Type F (furnace-welded pipe)Grade A 0.
48、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 %.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 mi
49、nimum 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 the specified outside diameter ofthe pipe, or the nominal width of the tension test specimen and thespecified wall thickness of the pipe, with the calculated value rounded tothe nearest 0.01 in.21 mm2, andU = specifi
