A0312_A0312M-06无缝和焊接奥氏体不锈钢管.pdf
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1、Designation:A 312/A 312M 06Used in USDOE-NE standardsStandard Specification forSeamless,Welded,and Heavily Cold Worked AusteniticStainless Steel Pipes1This standard is issued under the fixed designationA 312/A 312M;the number immediately following the designation indicates the yearof original adopti
2、on or,in the case of revision,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
3、.1 This specification2covers seamless,straight-seamwelded,and heavily cold worked welded austenitic stainlesssteel pipe intended for high-temperature and general corrosiveservice.NOTE1When the impact test criterion for a low-temperature servicewould be 15 ftlbf 20 J energy absorption or 15 mils 0.38
4、 mm lateralexpansion,some of the austenitic stainless steel grades covered by thisspecification are accepted by certain pressure vessel or piping codeswithout the necessity of making the actual test.For example,GradesTP304,TP304L,and TP347 are accepted by the ASME Pressure VesselCode,Section VIII Di
5、vision 1,and by the Chemical Plant and RefineryPiping Code,ANSI B31.3,for service at temperatures as low as 425 F250 C without qualification by impact tests.Other AISI stainless steelgrades are usually accepted for service temperatures as low as 325 F200 C without impact testing.Impact testing may,u
6、nder certaincircumstances,be required.For example,materials with chromium ornickel content outside the AISI ranges,and for material with carboncontent exceeding 0.10%,are required to be impact tested under the rulesof ASME Section VIII Division 1 when service temperatures are lowerthan 50 F 45 C.1.2
7、 Grades TP304H,TP309H,TP309HCb,TP310H,TP310HCb,TP316H,TP321H,TP347H,and TP348H aremodifications of Grades TP304,TP309Cb,TP309S,TP310Cb,TP310S,TP316,TP321,TP347,and TP348,and are intendedfor service at temperatures where creep and stress ruptureproperties are important.1.3 Optional supplementary requ
8、irements are provided forpipe where a greater degree of testing is desired.Thesesupplementary requirements call for additional tests to be madeand,when desired,it is permitted to specify in the order one ormore of these supplementary requirements.1.4 Table X1.1 lists the standardized dimensions of w
9、eldedand seamless stainless steel pipe as shown in ANSI B36.19.These dimensions are also applicable to heavily cold workedpipe.Pipe having other dimensions is permitted to be orderedand furnished provided such pipe complies with all otherrequirements of this specification.1.5 Grades TP321 and TP321H
10、 have lower strength require-ments for pipe manufactured by the seamless process innominal wall thicknesses greater than38in.9.5 mm.1.6 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values state
11、d in eachsystem are not exact equivalents;therefore,each system mustbe used independently of the other.Combining values from thetwo systems may result in nonconformance with the specifi-cation.The inch-pound units shall apply unless the“M”designation of this specification is specified in the order.N
12、OTE2The dimensionless designator NPS(nominal pipe size)hasbeen substituted in this standard for such traditional terms as“nominaldiameter,”“size,”and“nominal size.”2.Referenced Documents2.1 ASTM Standards:3A 262 Practices for Detecting Susceptibility to Intergranu-lar Attack in Austenitic Stainless
13、SteelsA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 941 Terminology Relating to Steel,Stainless Steel,Re-lated Alloys,and FerroalloysA 999/A 999M Specification for General Requirements forAlloy and Stainless Steel PipeA 1016/A 1016M Specification for General Requirement
14、sfor Ferritic Alloy Steel,Austenitic Alloy Steel,and Stain-less Steel TubesE 112 Test Methods for Determining Average Grain SizeE 381 Method of Macroetch Testing Steel Bars,Billets,Blooms,and Forgings1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Rel
15、ated Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved May 1,2006.Published May 2006.Originallyapproved in 1948.Last previous edition approved in 2005 as A 312/A 312M 05a.2For ASME Boiler and Pressure Vessel Code appl
16、ications see related Specifi-cation SA-312 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 information,refer to the standards Document Summary page onthe ASTM webs
17、ite.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.E 527 Practice for Numbering Metals and Alloys(UNS)2.2ANSI Standards:4B1.20.1 Pipe Threads,General PurposeB36.10 Welded
18、and Seamless Wrought Steel PipeB36.19 Stainless Steel Pipe2.3ASME Standard:ASME Boiler and Pressure Vessel Code:Section VIII52.4AWS Standard:A5.9 Corrosion-Resisting Chromium and Chromium-Nickel Steel Welding Rods and Electrodes62.5Other Standard:SAE J1086 Practice for Numbering Metals and Alloys(UN
19、S)73.Terminology3.1 Definitions:3.1.1 The definitions in Specification A 999/A 999M andTerminology A 941 are applicable to this specification.4.Ordering Information4.1 Orders for material to this specification shall conform tothe requirements of the current edition of Specification A 999/A 999M.5.Ge
20、neral Requirements5.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecificationA 999/A 999M unless otherwise provided herein.5.2 Heat Treatment:5.2.1 All pipe shall be furnished in the heattreated con-dition in accordance with th
21、e requirements of Table 2.Theheattreatment procedure,except for“H”grades,S30815,S31272,S31254,S32654,N08367,N08904,and N08926 shallconsist of heating the pipe to a minimum temperature of 1900F 1040 C and quenching in water or rapidly cooling byother means.6.Materials and Manufacture6.1 Manufacture:6
22、.1.1 The pipe shall be manufactured by one of the follow-ing processes:6.1.2 Seamless(SML)pipe shall be made by a process thatdoes not involve welding at any stage of production.6.1.3 Welded(WLD)pipe shall be made using an automaticwelding process with no addition of filler metal during thewelding p
23、rocess.6.1.4 Heavily cold-worked(HCW)pipe shall be made byapplying cold working of not less than 35%reduction inthickness of both wall and weld to a welded pipe prior to thefinal anneal.No filler shall be used in making the weld.Priorto cold working,the weld shall be 100%radiographicallyinspected in
24、 accordance with the requirements ofASME Boilerand Pressure Vessel Code,Section VIII,Division 1,latestrevision,Paragraph UW-51.6.1.5 Welded pipe and HCW pipe of NPS 14 and smallershall have a single longitudinal weld.Welded pipe and HCWpipe of a size larger than NPS 14 shall have a singlelongitudina
25、l weld or shall be produced by forming and weldingtwo longitudinal sections of flat stock when approved by thepurchaser.All weld tests,examinations,inspections,or treat-ments shall be performed on each weld seam.6.1.6 At the option of the manufacturer,pipe shall be eitherhot finished or cold finishe
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