1、Designation:B811131Standard Specification forWrought Zirconium Alloy Seamless Tubes for NuclearReactor Fuel Cladding1This standard is issued under the fixed designation B811;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of
2、 last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEEquations in Section A4.5 were corrected editorially in August 2014.1.Scope1.1 This specification covers seamless wrought zircon
3、ium-alloy tubes for nuclear fuel cladding application,in the outsidediameter(OD)size range of 0.200 in.(5.1 mm)to 0.650 in.(16.5 mm)and wall thickness range of 0.010 in.(0.25 mm)to0.035 in.(0.89 mm).1.2 Two grades of reactor grade zirconium alloys aredescribed.1.2.1 The present UNS numbers designate
4、d for the twogrades are given in Table 1.1.3 Unless a single unit is used,for example corrosion massgain in mg/dm2,the values stated in either inch-pound or SIunits are to be regarded separately as standard.The valuesstated in each system are not exact equivalents;therefore eachsystem must be used i
5、ndependently of the other.SI valuescannot be mixed with inch-pound values.1.4 The following precautionary caveat pertains only to thetest method portions of this specification:This standard doesnot purport to address all of the safety concerns,if any,associated with its use.It is the responsibility
6、of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2.Referenced Documents2.1 ASTM Standards:2B350/B350M Specification for Zirconium and ZirconiumAlloy Ingots for Nuclear ApplicationB353 Specification f
7、or Wrought Zirconium and ZirconiumAlloy Seamless and Welded Tubes for Nuclear Service(Except Nuclear Fuel Cladding)E8 Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tension Testing of Metallic MaterialsMetric(Withdrawn 2008)3E21 Test Methods for Elevated Temperature Tensi
8、on Tests ofMetallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE112 Test Methods for Determining Average Grain SizeG2/G2M Test Method for Corrosion Testing of Products ofZirconium,Hafnium,and Their Alloys in Water at 680F(360C)or in Ste
9、am at 750F(400C)2.2 Other Document:ANSI B46.1 Surface Texture(Surface Roughness)43.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 dimensions,ntube dimensions are outside diameter,inside diameter,and wall thickness.Only two of these param-eters may be specified in addition to len
10、gth,except minimumwall may be specified with outside and inside diameter.In eachcase,ovality and wall thickness variation(WTV)may bespecified as additional requirements.3.1.2 hydride orientation fraction,Fn,nthe ratio of hy-dride platelets oriented in the radial direction to the totalhydride platele
11、ts in the field examined.3.1.3 lot size,na lot shall consist of all tubes of the samesize,shape,condition,and finish produced from the same ingotby the same reduction schedule and heat treatment.The finalheat treatment shall be in a single furnace charge.3.1.4 mill finish tubes,ntubes that have rece
12、ived allfinishing operations subsequent to final anneal,which poten-tially affects tube mechanical,dimensional,or surface condi-tion.These operations include,but are not limited to,pickling,cleaning,outer and inner surface abrasive conditioning,andstraightening.1This specification is under the juris
13、diction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direct responsibility ofSubcommittee B10.02 on Zirconium and Hafnium.Current edition approved May 1,2013.Published May 2013.Originallyapproved in 1990.Last previous edition approved in 2007 as B811 02(2007).DOI:10.1
14、520/B0811-13E01.2For 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.3The last approved version of this historical stan
15、dard is referenced onwww.astm.org.4Available from American Iron and Steel Institute(AISI),1140 ConnecticutAve.,NW,Suite 705,Washington,DC 20036,http:/www.steel.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.5 ovality,nthe differe
16、nce between the maximum andminimum diameter,either outer or inner,as determined at anyone transverse cross-section of the tube.3.1.6 wall thickness variation(WTV),nthe differencebetween maximum and minimum wall thickness measured atany one transverse cross-section of the tube.NOTE1Measurement of ovality and WTV made by a helical scan witha pitch not exceeding 0.25 in.(6.5 mm)shall be considered as equivalentto“at any one cross-section of the tube.”3.2 Lot Definitions:3.2.1 castings,na lot shall