1、Designation:B51595(Reapproved 2014)Standard Specification forWelded UNS N08120,UNS N08800,UNS N08810,andUNS N08811 Alloy Tubes1This standard is issued under the fixed designation B515;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,t
2、he 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 welded UNS N08120,UNSN08800,UNS N08810 and UNS N088112alloy boiler,heatexchanger,and c
3、ondenser tubes for general corrosion resistingand low or high-temperature service.1.2 This specification covers tubes18to 5 in.(3.18 to 127mm),inclusive,in outside diameter and 0.015 to 0.500 in.(0.38to 12.70 mm),inclusive,in wall thickness.Table 2 of Specifi-cation B751 lists the dimensional requir
4、ements of these sizes.Tubes having other dimensions may be furnished providedsuch tubing complies with all other requirements of thisspecification.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
5、provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateMat
6、erial Safety Data Sheet(MSDS)for this product/materialas provided by the manufacturer,to establish appropriatesafety and heal practices,and determine the applicability ofregulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3B751 Specification for General Requirements for Nick
7、el andNickel Alloy Welded Tube3.Ordering Information3.1 Orders for material to this specification should includethe following information:3.1.1 Quantity(feet or number of lengths),3.1.2 UNS Number,3.1.3 Size(outside diameter minimum or average wallthickness),3.1.4 Length(random or specific),3.1.5 Cl
8、ass,3.1.6 ASTM Designation,3.1.7 Product AnalysisState if required,3.1.8 CertificationState if a certification or a report of testresults is required,and3.1.9 Purchaser InspectionState which tests or inspec-tions are to be witnessed,if any.4.Materials and Manufacture4.1 Tube shall be made from flat-
9、rolled alloy by an auto-matic welding process with no addition or filler metal.Subse-quent to welding and prior to final annealing,the material shallbe cold-worked in either the weld metal only or both weld andbase metal.4.2 Tube shall be furnished with oxide removed.Whenbright annealing is used,des
10、caling is not necessary.5.Chemical Composition5.1 The material shall conform to the composition limitsspecified in Table 1.One test is required for each lot as definedin Specification B751.5.2 If a product analysis is performed,it shall meet thechemistry limits prescribed in Table 1,subject to the a
11、nalysistolerances specified in Table 6 of Specification B751.6.Mechanical and Other Properties6.1 Mechanical PropertiesThe material shall conform tothe mechanical property requirements specified in Table 2.Onetest is required for each lot as defined in Specification B751.6.2 Grain SizeA transverse s
12、ample representing the full-wall thickness of annealed alloys UNS N08120,N08810,andN08811 shall conform to an average grain size of ASTM No.5 or coarser.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of Subcommittee
13、B02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 1970.Last previous edition approved in 2009 as B515 95(2009).DOI:10.1520/B0515-95R14.2New designation established in accordance with ASTM E527 and SAE J1086,Practice
14、for Numbering Metals and Alloys(UNS).3For 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.Copyright ASTM International,
15、100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.3 Flattening TestA flattening test shall be made on eachend of one tube per lot.Superficial ruptures resulting fromsurface imperfections shall not be cause for rejection.6.4 Flange TestA flange test shall be made on e
16、ach end ofone tube per lot.6.5 Nondestructive Test Requirements:6.5.1 Class 1Each piece of each lot shall be subject to oneof the following four tests:hydrostatic,pneumatic(airunderwater),eddy current,or ultrasonic.6.5.2 Class 2Each piece in each lot shall be subjected toa leak test and an electric test as follows:6.5.2.1 Leak TestHydrostatic or pneumatic(air underwa-ter).6.5.2.2 Electric TestEddy current or ultrasonic.6.6 The manufacturer shall have the option to test Class 1 orClass 2 and sele
