ASTM_A_895_-_89_2009.pdf

Designation:A89589(Reapproved 2009)Standard Specification forFree-Machining Stainless Steel Plate,Sheet,and Strip1This standard is issued under the fixed designation A895;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 hot-finished or cold-finishedplate,sheet,and strip in the more commonly used types ofstainless free machining steels designed especially for opti-mum machinability and for general corrosion and high tem-perature service.Stainless and heat-resisting plate,sheet,andstrip,other than free-machining types,are covered in separatespecifications.1.2 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.2.Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA480/A480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet,and StripA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.2 SAE Standard:3SAE J 1086 Recommended Practice for Numbering Metalsand Alloys3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 platematerial316in.(4.8 mm)and over in thicknessand over 10 in.(250 mm)in width.3.1.2 sheetmaterial under316in.(5.0 mm)in thicknessand 24 in.(600 mm)and over in width.3.1.3 stripmaterial under316in.(5.0 mm)in thickness andunder 24 in.(600 mm)in width.4.Process4.1 The steel shall be made by one or more of the followingprocesses:electric-arc,electric-induction,or other suitablecommercial processes.4.2 Plate,sheet,and strip may be furnished in one of theconditions listed in Table 1.5.Ordering Information5.1 Orders for material under this specification shouldinclude the following information:5.1.1 Quantity(weight or number of pieces),5.1.2 Type or UNS designation(Table 2),5.1.3 Form(plate,sheet,or strip),5.1.4 Condition(Table 2),5.1.5 Finish(9.2),5.1.6 Dimensions(thickness,width,and length),5.1.7 Edge,strip only(see Specification A480/A480M),5.1.8 ASTM designation and date of issue,5.1.9 Additions to specification or special requirements,5.1.10 Preparation for delivery,and5.1.11 Marking requirements.6.Chemical Composition6.1 The chemical composition shall conform to the require-ments specified in Table 2.6.2 Methods and practices relating to chemical analysisrequired by this specification shall be in accordance with TestMethods,Practices,and Terminology A751.7.Hardness Requirement7.1 The material shall conform to the hardness requirementsas specified in Table 3.7.2 The hardness test shall be determined in accordancewith Test Methods and Definitions A370.8.General Requirements for Delivery8.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition of1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloysand is the direct responsibility of SubcommitteeA01.17 on Flat-Rolled and Wrought Stainless Steel.Current edition approved May 1,2009.Published June 2009.Originallyapproved in 1989.Last previous edition approved in 2004 as A895 89(2004).DOI:10.1520/A0895-89R09.2For 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.3Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001,http:/www.sae.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);Specification A480/A480M.In case of conflict,the require-ments of this specification shall prevail.9.Workmanship,Finish,and Appearance9.1 The material shall be of uniform quality consistent withgood manufacturing and inspection practices.The steel qualityshall be satisfactory for the production or fabrication offinished parts.NOTE1Free-machining stainless steels may not equal the quality ofnon-free-machining stainless steels because of the inclusions present toimpart free-machining.9.2 Plates and sheets may be ground to remove surfacedefects,provided such grinding does not reduce the thicknessor width at any point beyond the allowable dimensionaltolerances.An iron-free abrasive wheel shall be used for suchgrinding and shall be operated at a speed ample to ensure thatdefective areas are cleanly cut out.10.Product Marking10.1 Each sheet,strip,or plate shall be marked on one face,i