ASTM_B_673_-_05_2016.pdf

Designation:B67305(Reapproved 2016)Standard Specification forUNS N08925,UNS N08354,and UNS N08926 Welded Pipe1This standard is issued under the fixed designation B673;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 UNS N08925,UNS N08354,and UNS N089262welded pipe for general corrosion applica-tions.1.2 This specification covers pipe sizes in schedules shownin Table 1.1.3 ASTM International has adopted definitions wherebysome grades,such as UNS N08904,previously in this speci-fication were recognized as stainless steels,because thosegrades have iron as the largest element by mass percent.Suchgrades are under the oversight of ASTM Committee A01 andits subcommittees.The products of N08904 previously coveredin this specification are now covered by Specification A312/A312M.1.4 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.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateSafety Data Sheet(SDS)for this product/material as providedby the manufacturer,to establish appropriate safety and healthpractices,and determine the applicability of regulatory limi-tations prior to use.2.Referenced Documents2.1 ASTM Standards:3A312/A312M Specification for Seamless,Welded,andHeavily Cold Worked Austenitic Stainless Steel PipesB775 Specification for General Requirements for Nickel andNickel Alloy Welded PipeE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.2 ANSI Standards:4B2.1 Pipe ThreadsB31.10 Power PipingB36.10 Welded and Seamless Wrought Steel PipeB36.19 Stainless Steel Pipe43.Classification3.1 Class 1Welded,cold worked,solution treated,andnondestructively tested in accordance with 8.3.1.3.2 Class 2Welded,cold worked,solution treated,andnondestructively tested in accordance with 8.3.2.3.3 Class 3As welded,solution treated,and nondestruc-tively tested in accordance with 8.3.1.4.General Requirement4.1 Material furnished under this specification shall con-form to the applicable requirements of Specification B775unless otherwise provided herein.5.Ordering Information5.1 Orders for material under this specification shouldinclude the following information:5.1.1 Alloy name or UNS number,5.1.2 Class,5.1.3 Quantity(feet or number of lengths),5.1.4 Size(nominal size or outside diameter and schedulenumber or average wall thickness),5.1.5 LengthSpecify cut length or random,5.1.6 CertificationState if certification or a report of testresults is required,5.1.7 Purchaser InspectionState which tests or inspec-tions are to be witnessed,5.1.8 EndsPlain ends cut and deburred will be furnished,unless otherwise specified,and5.1.9 Samples for Product(Check)AnalysisState whethersamples shall be furnished.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved June 1,2016.Published June 2016.Originallyapproved in 1980.Last previous edition approved in 2011 as B673 05(2011)1.DOI:10.1520/B0673-05R16.2New designation established in accordance with ASTM E527 and SAE J1086,Practice for Numbering Metals and Alloys(UNS).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 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 States1 6.Materials and Manufacture6.1 Pipe shall be made from flat-rolled alloy by an auto-matic welding process with no addition of filler metal.Subse-quent to welding and before final solution treatment,Class 1and Class 2 material shall be cold worked either in both weldand base metal or in weld metal only.NOTE1The recommended heat treatment shall consist of heating to atemperature of 1975 to 2150F(1080 to 1180C)for UNS N08354,or2010 to 2100F(1100 to 1150C)for UNS N08925 and UNS N08926,followed by quenching in water or rapid cooling by other means.6.2 Pipe shall be furnished with oxide removed.Whensolution treatment is performed in a protective atmosphere,descaling is not necessary.NOTE2Pipe produced with the addition of filler metal is available.The manufacturer must b