1、Designation:A88789(Reapproved 2014)Standard Specification forBorated Stainless Steel Plate,Sheet,and Strip for NuclearApplication1This standard is issued under the fixed designation A887;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revisio
2、n,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 chromium-nickel stainlesssteel plate,sheet,and strip,modified by the addition of na
3、turalor enriched boron,for nuclear application.1.2 Borated stainless steels covered by this specification,because of their particular alloy content and specializedproperties,may require special care in their fabrication andwelding.Specific procedures are of fundamental importance,and it is presuppos
4、ed that all parameters will be in accordancewith approved methods capable of producing the desiredproperties in the finished fabrication.1.3 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 f
5、or 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 Met
6、hods,Practices,and Terminology for Chemi-cal Analysis of Steel Products3.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 i
7、n width.3.1.3 stripmaterial under316in.(5.0 mm)in thickness andunder 24 in.(600 mm)in width.4.Ordering Information4.1 Orders for material under this specification shall includethe information specified in the Ordering Information sectionof Specification A480/A480M.5.Process5.1 If a specific type of
8、melting is required by the purchaser,it shall be stated on the purchase order.5.2 When specified on the purchase order,or when aspecific type of melting has been specified on the purchaseorder,the material manufacturer shall indicate on the test reportthe type of melting used to produce the material
9、.6.Heat Treatment6.1 The austenitic chromium-nickel steels shall be solution-annealed to meet the mechanical property requirements of thisspecification.Solution-annealing shall consist of heating thematerial to a temperature of 1900F(1040C)minimum for anappropriate time followed by water quenching o
10、r rapidlycooling by other means.7.Material Test Report7.1 A report of the results of all tests required by thisspecification and the type of melting used shall be supplied tothe purchaser.8.Chemical Composition8.1 The chemical analysis of representative material shall beperformed,as agreed upon betw
11、een the purchaser and supplier,to determine the percentages of the elements identified in Table1.The chemical composition thus determined shall be reportedto the purchaser,or his representative,and shall conform to therequirements specified in Table 1.8.2 When a product(check or verification)analysi
12、s isperformed,the chemical composition thus determined mayvary from the specified limits by the amounts shown in Table1,ProductAnalysis Tolerances,of Specification A480/A480M.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the di
13、rect responsibility of SubcommitteeA01.17 on Flat-Rolled and Wrought Stainless Steel.Current edition approved March 1,2014.Published April 2014.Originallyapproved in 1988.Last previous edition approved in 2009 as A887 89(2009).DOI:10.1520/A0887-89R14.2For referenced ASTM standards,visit the ASTM web
14、site,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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyri
15、ght by ASTM Intl(all rights reserved);8.3 Methods and practices relating to chemical analysisrequired by this specification shall be in accordance with TestMethods,Practices,and Terminology A751.8.4 Boron determination not covered in Test Methods,Practices,and Terminology A751 shall be made as agree
16、d uponbetween the purchaser and the supplier.9.Mechanical Properties9.1 Tensile PropertiesThe material shall conform to thetensile property requirements specified in Table 2.9.2 HardnessThe material shall conform to the hardnessrequirements as specified in Table 2.9.3 GradeThe grade of the material is defined by theuniformity of the dispersion of the boron within the melt.Grade A corresponds to the near-optimal dispersion,whileGrade B corresponds to a less-than-optimal dispersion of theboron.Con
