1、Designation: B 515 95 (Reapproved 2009)Standard Specification forWelded UNS N08120, UNS N08800, UNS N08810, andUNS N08811 Alloy Tubes1This standard is issued under the fixed designation B 515; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、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 welded UNS N08120, UNSN08800, UNS N08810 and UNS N08811* alloy boiler,
3、 heatexchanger, and condenser tubes for general corrosion resistingand low or high-temperature service.1.2 This specification covers tubes18 to 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 B 75
4、1 lists the dimensional requirements 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 mathematicalco
5、nversions to SI units that are 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 thos
6、e identified in the appropriateMaterial 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:2B 751 Specifi
7、cation for General Requirements for Nickeland Nickel 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
8、),3.1.4 Length (random or specific),3.1.5 Class,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 a
9、nd Manufacture4.1 Tube shall be made from flat-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 wi
10、th oxide removed. Whenbright annealing is used, descaling 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 B 751.5.2 If a product analysis is performed, it shall meet the
11、chemistry limits prescribed in Table 1, subject to the analysistolerances specified in Table 6 of Specification B 751.6. 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
12、 defined in Specification B 751.6.2 Grain SizeA transverse sample 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.6.3 Flattening TestA flattening test shall be made on eachend of one tube per lot. Su
13、perficial ruptures resulting fromsurface imperfections shall not be cause for rejection.6.4 Flange TestA flange test shall be made on each end ofone tube per lot.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of Sub
14、committeeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Oct. 1, 2009. Published October 2009. Originallyapproved in 1970. Last previous edition approved in 2002 as B 515 95 (2002).* New designation established in accordance with ASTM E 527 and SAE J1086,Practice for Nu
15、mbering Metals and Alloys (UNS).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.1Copyright ASTM International
16、, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.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 (air under-water), eddy current, or ultrasonic.6.5.2 Class 2Each p
17、iece 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 select the nondestructive test method
18、s, if notspecified by the purchaser.7. General Requirements General Requirements7.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification B 751 unless otherwise provided herein.8. Keywords8.1 UNS N08120; UNS N08800; UNS N0881
19、0; UNSN08811; welded tubeASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infring
20、ement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard
21、or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views
22、known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting
23、ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 1 Chemical RequirementsElementComposition Limits, %AlloyN08120AlloyN08800AlloyN08810AlloyN08811Nickel, min 35.0 30.0 30.0 30.0, max 39.0 35.0 35.0 35.
24、0Chromium, min 23.0 19.0 19.0 19.0, max 27.0 23.0 23.0 23.0Iron, min remainder 39.5A39.5A39.5AManganese, max 1.5 1.5 1.5 1.5Carbon , min 0.02 . . ., max 0.10 0.10 0.05 to 0.10 0.06 to 0.10Copper, max 0.50 0.75 0.75 0.75Silicon, max 1.0 1.0 1.0 1.0Sulfur, max 0.03 0.015 0.015 0.015Aluminum, minB. 0.1
25、5 0.15 0.15, max 0.40 0.60 0.60 0.60Titanium, minB. 0.15 0.15 0.15, max 0.20 0.60 0.60 0.60Columbium , min 0.4 . . ., max 0.9 . . .Molybdenum, max 2.50 . . .Phosphorus, max 0.040 . . .Tungsten, max 2.50 . . .Cobalt, max 3.0 . . .Nitrogen , min 0.15 . . ., max 0.30 . . .Boron, max 0.010 . . .AIron sh
26、all be determined arithmetically by difference.BAlloy UNS N08811: Al + Ti, 0.851.20.TABLE 2 Mechanical Property RequirementsAlloy Condition (Temper)Tensile Strength, min,psi (MPa)Yield Strength, 0.2 % Offset,min, psi (MPa)Elongation in 2 in. or50 mm, min, %UNS N08120 annealed 90 000 (621) 40 000 (276) 30UNS N08800 annealed 75 000 (520) 30 000 (205) 30UNS N08810 and UNS N08811 annealed 65 000 (450) 25 000 (170) 30B 515 95 (2009)2
