1、Designation:A 409/A 409M 01An American National StandardStandard Specification forWelded Large Diameter Austenitic Steel Pipe for Corrosiveor High-Temperature Service1This standard is issued under the fixed designationA 409/A 409M;the number immediately following the designation indicates the yearof
2、 original 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(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification2covers straight seam or spiral seamelectric-
3、fusion-welded,light-wall,austenitic chromium-nickelalloy steel pipe for corrosive or high-temperature service.Thesizes covered are NPS 14 to 30 with extra light(Schedule 5S)and light(Schedule 10S)wall thicknesses.Table X1.1 showsthe wall thickness of Schedule 5S and 10S pipe.Pipe havingother dimensi
4、ons may be furnished provided such pipe com-plies with all other requirements of this specification.1.2 Several grades of alloy steel are covered as indicated inTable 1.1.3 Optional supplementary requirements are provided.These call for additional tests to be made,and when desiredshall be stated in
5、the order,together with the number of suchtests required.1.4 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 stated in eachsystem are not exact equivalents;therefore,each system mustbe used
6、 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.NOTE1The dimensionless designator NPS(nominal pipe size)hasbeen substituted
7、in this standard for such traditional terms as“nominaldiameter,”“size,”and“nominal size.”2.Referenced Documents2.1 ASTM Standards:A 262 Practices for Detecting Susceptibility to Intergranu-lar Attack in Austenitic Stainless Steels3A 480/A 480M Specification for General Requirements forFlat-Rolled St
8、ainless and Heat-Resisting Steel Plate,Sheet,and Strip3A 999/A 999M Specification for General Requirements forAlloy and Stainless Steel Pipe4E 527 Practice for Numbering Metals and Alloys(UNS)42.2ASME Boiler and Pressure Vessel Code:Section IX Welding Qualifications.52.3AWS Standards:A 5.22 Flux Cor
9、ed Arc Welding6A 5.30 Consumable Weld Inserts for Gas Tungsten ArcWelding6A 5.4 Corrosion-Resisting Chromium and Chromium-Nickel Steel Covered Welding Electrodes6A 5.9 Corrosion-Resisting Chromium and Chromium-Nickel Steel Welding Rods and Bare Electrodes6A 5.11 Nickel and Nickel-Alloy Covered Weldi
10、ng Elec-trodes6A 5.14 Nickel and Nickel-Alloy Bare Welding Rods andElectrodes62.4Other Standard:SAE J1086 Practice for Numbering Metals and Alloys(UNS)73.Ordering Information3.1 Orders for material to this specification should includethe following,as required,to describe the desired materialadequate
11、ly:3.1.1 Quantity(feet,centimetres,or number of lengths),3.1.2 Name of material(straight seam or spiral seamelectric-fusion-welded austenitic steel pipe),3.1.3 Grade(Table 1),3.1.4 Size(outside diameter and schedule number,or wallthickness).3.1.5 Length(specific or random)(Section 11),3.1.6 End fini
12、sh(Section on Ends of Specification A 999/A 999M),3.1.7 Optional requirements(5.2.1-5.2.3 removal of weldbead;5.3.2,special heat treatment;15.2,nondestructive test;10.1.1,outside diameter tolerance;11.2,length circumferen-tially welded;12.3,repair by welding and heat treatment1This specification is
13、under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel,and Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved Mar.10,2001.Published May 2001.Originallypublished as A 409 57 T.Last previous editio
14、n A 409 95a.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-409 in Section II of that Code.3Annual Book of ASTM Standards,Vol 01.03.4Annual Book of ASTM Standards,Vol 01.01.5Available from American Society of Mechanical Engineers,345 E.47th St.,New York,NY 10017.
15、6Available from American Welding Society,550 Le Jeune Road,P.O.Box351040,Miami,FL 33135.7Available from Society of Automotive Engineers,400 Commonwealth Drive,Warrendale,PA 15096.1Copyright ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,United States.subsequent to repair welding;12.4,san
16、d blasted or pickled;17.1 Certification;Supplementary Requirements S1 to S6).3.1.8 Specification designation,and3.1.9 Special requirements.4.General Requirements4.1 Material furnished to this specification shall conform tothe applicable requirements of the current edition of Specifi-cation A 999/A 999M,unless otherwise provided herein.5.Materials and Manufacture5.1 If a specific type of melting is required by the purchaserit shall be stated on the order.5.2 Welding:5.2.1 The welds shall be made