ASTM_A_666_-_15.pdf

Designation:A66615Standard Specification forAnnealed or Cold-Worked Austenitic Stainless Steel Sheet,Strip,Plate,and Flat Bar1This standard is issued under the fixed designation A666;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification covers austenitic stainless steels in theannealed and normally required cold-worked conditions forvarious structural,pressure vessel,magnetic,cryogenic,andheat-resisting applications.(This revision of SpecificationA666 replaces prior Specifications A412 and A177.)1.2 The application of this specification,or the use ofmaterial covered by this specification does not automaticallyallow usage in pressure vessel applications.Only annealedconditions of grades specifically approved by the ASME codeare permitted for pressure vessel use.1.3 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation only.2.Referenced Documents2.1 ASTM Standards:2A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate,Sheet,and Strip for PressureVessels and for General ApplicationsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA480/A480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet,and StripA484/A484M Specification for General Requirements forStainless Steel Bars,Billets,and Forgings3.Material Test Report and Certification3.1 In addition to the requirements of Specification A480/A480M,the cold-worked condition(annealed,14H,12H,andso forth)shall be noted.4.Chemical Composition4.1 The steel shall conform to the requirements as tochemical composition specified in Table 1,and shall conformto applicable requirements specified in the current edition ofSpecification A480/A480M.5.Mechanical Properties5.1 The material shall conform to the mechanical propertiesspecified in Tables 2 and 3,or Tables 2 and 4.6.General Requirements6.1 The following requirements for orders for materialfurnished under this specification shall conform to the appli-cable requirements of the current edition of SpecificationA480/A480M or A484/A484M:6.1.1 Definitions,6.1.2 General requirements for delivery,6.1.3 Ordering information,6.1.4 Process,6.1.5 Special tests,6.1.6 Heat treatment,6.1.7 Dimensions and permissible variations,6.1.8 Workmanship,finish and appearance,6.1.9 Number of tests/test methods,6.1.10 Specimen preparation,6.1.11 Retreatment,6.1.12 Inspection,6.1.13 Rejection and rehearing,6.1.14 Material test report,6.1.15 Certification,and6.1.16 Packaging,marking,and loading.7.Sampling7.1 Tension and bend-test specimens of sheet,strip,andplate products shall be selected from finished material and shallbe selected in the transverse direction,except in the case ofstrip under 9 in.(229 mm)in width,in which case tension testspecimens shall be selected in the longitudinal direction.7.2 Flat bar tension and bend-test specimens shall be se-lected from the finished material and shall be in the longitudi-nal direction.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.17 on Flat-Rolled and Wrought Stainless Steel.Current edition approved March 1,2015.Published March 2015.Originallyapproved in 1972.Last previous edition approved in 2010 as A666 10.DOI:10.1520/A0666-15.2For 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.3 Corrosion samples,if required,shall be taken frommaterial after final annealing and descaling and prior to coldworking.8.Number of Tests8.1 For cold-worked product produced in coil form,onetension test shall be made from each end of each coil.One bendtest shall be made from one end of each coil.8.2 For cold-worked flat bar and plate products,two tensiontest and one bend test shall be made on each size of flat bar andeach thickness of plate from each heat in a lot annealed in asingle charge or under the same conditions in a continuousfurnace.8.3 Annealed material produced to Table 2 requirementsshall be tested in accordance with Specification A480/A480M.9.Test Methods9.1 Tension Test:9.1.1 The yield strength shall be determined by the offsetmethod as described in Test Methods and Definitions A370.Analternative method of determining field strength