ASTM_B_898_-_11_2016.pdf

Designation:B89811(Reapproved 2016)Standard Specification forReactive and Refractory Metal Clad Plate1This standard is issued under the fixed designation B898;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 plate consisting of a base metalto which is bonded,integrally and continuously,on one or bothsides a layer of one of the following:titanium,zirconium,tantalum,niobium,and their alloys.The material generally isintended for pressure vessel use.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.The values in parentheses andin metric tables are provided for information only.2.Referenced Documents2.1 ASTM Standards:2A265 Specification for Nickel and Nickel-Base Alloy-CladSteel PlateA578/A578M Specification for Straight-Beam UltrasonicExamination of Rolled Steel Plates for Special Applica-tionsB265 Specification for Titanium and Titanium Alloy Strip,Sheet,and PlateB393 Specification for Niobium and Niobium Alloy Strip,Sheet,and PlateB551/B551M Specification for Zirconium and ZirconiumAlloy Strip,Sheet,and PlateB708 Specification for Tantalum and Tantalum Alloy Plate,Sheet,and Strip2.2 ASME Code:3Boiler and Pressure Vessel Code,Section IX Welding Quali-ficationsBoiler and Pressure Vessel Code,Section VIII Divisions 1,2,32.3 Military Standard:4MIL-J-24445AJoint,Bimetallic Bonded,Aluminum toSteel3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 This material is considered as single-clad or double-clad dependent upon whether one or both sides of the basemetal are covered by a cladding metal.3.1.2 base metal,nthe component that comprises thegreatest percentage of total thickness.3.1.3 claddingmetal,orcladdingmetals,nthecomponent,or components,which individually comprise lessthan the greatest percentage of total thickness.3.1.4 cladding operation,nthe production event,whichresults in the formation of the bond between the cladding andbase metal components,plus all related prebonding and postbonding operations,prior to supply to the purchaser.3.1.5 interface,nof the clad product,is that region ofthickness in which the product transitions from essentially100%base metal to 100%cladding metal.Also known asbond or bond zone.3.1.6 interlayer,na metal layer of a type or grade differentfrom the cladding metal and base metal,which is appliedbetween the cladding and base metal.3.1.7 integrally and continuously bonded,adva conditionin which the cladding metal and base metal are broughttogether to form a metallurgical bond at essentially the entireinterface of the two metals by means other than those processesthat do not produce a homogeneous composite plate.4.Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Quantity.4.1.2 Product dimensions,including thickness of both clad-ding metal and base metal.It should state whether eachthickness value is minimum or nominal.If not stated,thicknessvalues shall be nominal.1This specification is under the jurisdiction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direct responsibility ofSubcommittee B10.01 on Titanium.Current edition approved May 1,2016.Published May 2016.Originallyapproved in 1999.Last previous edition approved in 2011 as B898 11.DOI:10.1520/B0898-11R16.2For 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 American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.4Available from DLA Document Services,Building 4/D,700 Robbins Ave.,Philadelphia,PA 19111-5094,http:/quicksearch.dla.mil.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.1.3 Cladding metal type and specification(the claddingmetal specification)(see Section 6).4.1.4 Base metal type and specification(the base metalspecification)(see Section 6).4.1.5 Flatness requirements(see 10.3).4.1.6 Ultrasonic inspection level(see Section 11).4.1.7 Heat treatment requirements,if any.4.1.8 Restrictions limiting or disallowing welding,or weldrepair,or both,if any(see Section 12).4.1.9 Any additional codes and standards specified by thepurchaser or manufacturer.4.1.10 Supplementary Requirements,if any.4.1.11 Additional requirements,if any.5.Materials and Manufacture5.1 Process:5.1.1 The base metal shall be manufactured in accordancewith all applicable