ASTM A381 A381M-2018 Standard Specification for Metal-Arc-Welded Carbon or High-Strength Low-Alloy Steel Pipe for Use With High-Pressure Transmission Systems.pdf
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1、Designation: A381/A381M 18Standard Specification forMetal-Arc-Welded Carbon or High-Strength Low-Alloy SteelPipe for Use With High-Pressure Transmission Systems1This standard is issued under the fixed designation A381/A381M; the number immediately following the designation indicates the yearof origi
2、nal adoption or, in the case of revision, the 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.1. Scope*1.1 This specification covers straight seam, double-submerged-arc-w
3、elded carbon or high-strength low-alloy steelpipe (Note 1) suitable for high-pressure service, 16 in. 400mm and larger in outside diameter, with wall thicknesses from516 to 112 in. 8 to 40 mm. The pipe is intended for fabricationof fittings and accessories for compressor or pump-stationpiping. Pipe
4、ordered to this specification shall be suitable forbending, flanging, corrugating, and similar operations.NOTE 1A comprehensive listing of standardized pipe dimensions iscontained in ANSI B36.10.NOTE 2The term “double welded” is commonly used in the gas andoil transmission industry, for which this p
5、ipe is primarily intended, toindicate welding with at least two weld passes, of which one is on theoutside of the pipe and one on the inside. For some sizes of the pipecovered by this specification, it becomes expedient to use manual welding,in which case the provisions of Note 3 shall be followed.1
6、.2 This specification is expressed in both inch-pound unitsand in SI units; however, unless the purchase order or contractspecifies the applicable M specification designation (SI units),the applicable inch-pound units shall apply. The values statedin either inch-pound units or SI units are to be reg
7、ardedseparately as standard. Within the text, the SI units are shownin brackets. The values stated in each system may not be exactequivalents; therefore, each system shall be used independentlyof the other. Combining values from the two systems mayresult in nonconformance with the standard.1.3 Eleve
8、n classes of pipe, based on minimum yield pointrequirements, are covered as indicated in Table 1.1.4 This specification identifies various thermal treatments(3.1.9, 5.5, and 5.6).1.5 The following caveat applies to the test methodsportion, Sections 9, 10, and 11, only. This standard does notpurport
9、to address all of the safety concerns, if any, associatedwith its use. It is the responsibility of the user of this standardto establish appropriate safety, health, and environmentalpractices and determine the applicability of regulatory limita-tions prior to use.1.6 This international standard was
10、developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced
11、 Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA530/A530M Specification for General Requirements forSpecialized Carbon and Alloy Steel PipeA751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsA1058 Test Methods
12、for Mechanical Testing of SteelProductsMetric2.2 ASME Boiler and Pressure Vessel Code:3Section VIIISection IX2.3 ASME Standard:4ASME B36.10 Welded and Seamless Wrought Steel Pipe3. Ordering Information3.1 Orders for metal-arc-welded steel pipe to this specifica-tion should include the following, as
13、required, to describe thedesired material adequately:3.1.1 Quantity (feet, centimetres, or number of lengths),3.1.2 Name of material (metal-arc welded pipe),3.1.3 Class (Table 1),1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is th
14、e direct responsibility of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Nov. 1, 2018. Published December 2018. Originallyapproved in 1954. Last previous edition approved in 2012 as A381 96 (2012).DOI: 10.1520/A0381_A0381M-18.2For referenced ASTM standards, visit the A
15、STM 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.3Available from American Society of Mechanical Engineers, 345 E. 47th St.,New York, NY 10017.4Available
16、from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19
17、428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Tech
18、nical Barriers to Trade (TBT) Committee.13.1.4 Material (carbon or high-strength low-alloy steel,Section 5),3.1.5 Size (outside diameter and wall thickness),3.1.6 Length (specific or random) (Section 13),3.1.7 Ends (Section 14),3.1.8 Heat treatment (stress-relieved, normalized, orquenched and temper
19、ed) (see 5.5 and 5.6),3.1.9 Optional requirements:3.1.9.1 Manual welding (5.2, Note 3),3.1.9.2 Hydrostatic test omission (9.3),3.1.9.3 Radiography (11.2).3.1.10 ASTM Specification designation A381 or A381Mand year date.3.1.11 Special requirements or exceptions to this specifica-tion.4. General Requi
20、rements4.1 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 The steel plate used in the manufacture of the pipe shallbe of suitable welding qualit
21、y carbon steel, or of suitablewelding quality high-strength, low-alloy steel, as agreed uponbetween the manufacturer and purchaser.5.2 The longitudinal edges of the plate shall be shaped togive the most satisfactory results by the particular weldingprocess employed. The plate shall be properly forme
22、d and maybe tacked preparatory to welding. The weld (except tack welds)shall be made preferably by the automatic submerged-arc-welding process (Note 3) and shall be of reasonably uniformwidth and height for the entire length of the pipe.NOTE 3By agreement between the manufacturer and the purchaser,m
23、anual welding by qualified welders using a qualified procedure may beused as an equal alternate to this specification.5.3 Both longitudinal and circumferential (if any) jointsshall be double welded, full penetration welds being made inaccordance with procedures and by welders or welding opera-tors q
24、ualified in accordance with the ASME Boiler andPressure Vessel Code, Section IX.5.4 The contour of the reinforcement shall be smooth, withno valley or groove along the edge or in the center of the weld,and the deposited metal shall be fused smoothly and uniformlyinto the plate surface. The finish of
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