ASTM_A_381_-_96_2012.pdf

Designation:A38196(Reapproved 2012)Standard Specification forMetal-Arc-Welded Steel Pipe for Use With High-PressureTransmission Systems1This standard is issued under the fixed designation A381;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the 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 specification covers straight seam,double-submerged-arc-welded steel pipe(Note 1)suitable for high-pressure service,16 in.(406 mm)and larger in outsidediameter,with wall thicknesses from516to 112in.(7.9 to 38mm).The pipe is intended for fabrication of fittings andaccessories for compressor or pump-station piping.Pipe or-dered to this specification shall be suitable for bending,flanging(vastoning),corrugating,and similar operations.NOTE1A comprehensive listing of standardized pipe dimensions iscontained in ANSI B36.10.NOTE2The term“double welded”is commonly used in the gas andoil transmission industry,for which this pipe 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.1.2 Nine classes of pipe,based on minimum yield pointrequirements,are covered as indicated in Table 1.1.3 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.1.4 The following caveat applies to the test methodsportion,Sections 9 and 10,only.This standard does notpurport 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 and health practices anddetermine the applicability of regulatory limitations prior touse.2.Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA530/A530M Specification for General Requirements forSpecialized Carbon and Alloy Steel PipeE30 Test Methods for ChemicalAnalysis of Steel,Cast Iron,Open-Hearth Iron,and Wrought Iron(Withdrawn 1995)32.2 ASME Boiler and Pressure Vessel Code:4Section VIII Pressure VesselsSection IX Welding Qualifications2.3 ANSI Standard:5ANSI B36.10 Welded and Seamless Wrought Steel Pipe3.Ordering Information3.1 Orders for material to this specification should includethe following,as required,to describe the desired materialadequately: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),3.1.4 Material(carbon or 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 or normalized)(see5.6),3.1.9 Optional requirements(see 5.2(Note 3),Sections 11and 15),3.1.10 Specification number,and3.1.11 Special requirements or exceptions to this specifica-tion.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.1This specification is under 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 March 1,2012.Published November 2012.Originallyapproved in 1954.Last previous edition approved in 2005 as A381 96(2005).DOI:10.1520/A0381-96R12.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American Society of Mechanical Engineers,345 E.47th St.,New York,NY 10017.5Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);5.Materials and Manufacture5.1 The steel plate used in the manufacture of the pipe shallbe of suitable welding quality 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 formed and maybe tacked preparatory to welding.The weld(except tack welds)shall be made preferably by the auto