ASTM_A_954_-_02.pdf

Designation:A 954 02Standard Specification forAustenitic Chromium-Nickel-Silicon Alloy Steel Seamlessand Welded Pipe1This standard is issued under the fixed designation A 954;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(e)indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers seamless and straight-seamwelded austenitic steel pipe intended for high-temperature andgeneral corrosive service,having a specified minimum chro-mium content of less than 10.50%.1.2 Appendix X1 lists the dimensions of welded and seam-less stainless steel pipe as shown in ANSI B36.19.Pipe havingother dimensions may be furnished provided such pipe com-plies with all other requirements of this specification.1.3 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.The values stated ineach system are not exact equivalents;therefore,each systemmust be used independently of the other.Combining valuesfrom the two systems may result in nonconformance with thespecification.Unless the order specifies the applicable“M”specification designation(SI units),the material shall befurnished in inch-pound units.2.Referenced Documents2.1 ASTM Standards:A 370 Test Methods and Definitions for Mechanical Testingof Steel Products2A 999/A 999M Specification for General Requirements forAlloy and Stainless Steel Pipe3A 1016/A 1016M Specification for General Requirementsfor Ferritic Alloy Steels and Stainless Steel Tubes3E 112 Test Methods for Determining Average Grain Size4E 381 Method of Macroetch Testing,Inspection,and RatingSteel Products,Comprising Bars,Billets,Blooms,andForgings4E 527 Practice for Numbering Metals and Alloys(UNS)32.2ANSI Standards:5B1.20.1 Pipe Threads,General PurposeB36.10 Welded and Seamless Wrought Steel PipeB36.19 Stainless Steel Pipe2.3AWS Standard:6A5.9 Corrosion-Resisting Chromium and Chromium-Nickel Steel Welding Rods and Electrodes2.4SAE Standard:7SAE J1086 Practice for Numbering Metals and Alloys(UNS)3.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(austenitic steel pipe),3.1.3 Process(seamless or welded),3.1.4 Grade(Table 1),3.1.5 Size(NPS or outside diameter and schedule number oraverage wall thickness),3.1.6 Length(specific or random)(Section 10),3.1.7 End finish(Section on Ends of Specification A 999/A 999M),3.1.8 Optional requirements,3.1.9 Test report required(Certification Section of Specifi-cation A 999/A 999M),3.1.10 Specification number,and3.1.11 Special requirements or any supplementary require-ments selected,or both.4.General Requirements4.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification A 999/A 999M)unless otherwise providedherein.1This specification is under the jusrisdiction 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 Sept.10,2002 Published October 2002.Originallypublished as A 954-96.Last previous edition A 954-96.2Annual Book of ASTM Standards,Vol 01.03.3Annual Book of ASTM Standards,Vol 01.01.4Annual Book of ASTM Standards,Vol 03.01.5Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.6Available from The American Welding Society(AWS),550 NW LeJeune Rd.,Miami,FL 33126.7Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001.1*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.5.Materials and Manufacture5.1 Manufacture:5.1.1 The pipe shall be made by the seamless or anautomatic welding process,without addition of filler metal inthe welding operation.5.1.2 Welded pipe NPS 14 and smaller shall have a singlelongitudinal weld.Welded pipe of a size larger than NPS 14may be produced by forming and welding two longitudinalsections of flat stock when approved by the purchaser.All weldtests,examinations,inspections,or treatments are to be per-formed on each weld seam.5.1.3 At the manufacturers option,pipe may be either hotfinished or cold finished.5.1.4 The pipe shall be free of scale and contaminating ironparticles.Pickling,blasting or surface finishing is not manda-tory when pipe is bright annealed.The purchaser may requestthat a passivating treatment be applied.5.2 Heat Treatment:5.2.1 All pipe shall be furnished in the heat-treated condi-tion.The heat-treatment procedure,shall consist of heating thepipe to a minimum temperature of 1900F(1040