1、Designation: B515 95 (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 re
2、vision, 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 N088112alloy boiler, he
3、atexchanger, 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 B751 li
4、sts 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 mathematicalconver
5、sions 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 those id
6、entified 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:3B751 Specificatio
7、n for General Requirements for Nickel 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
8、.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 and Ma
9、nufacture4.1 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 with ox
10、ide 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 B751.5.2 If a product analysis is performed, it shall meet thechemis
11、try limits prescribed in Table 1, subject to the analysistolerances 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 define
12、d in Specification B751.6.2 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.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and A
13、lloys and is the direct responsibility of SubcommitteeB02.07 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 est
14、ablished in accordance with ASTM E527 and SAE J1086,Practice 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 Doc
15、ument Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16.3 Flattening TestA flattening test shall be made on eachend of one tube per lot. Superficial ruptures resulting fromsurface imperfections shall no
16、t be cause for rejection.6.4 Flange TestA flange test shall be made on each 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 Cl
17、ass 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 select the nondestructive
18、test methods, if notspecified by the purchaser.7. General Requirements7.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification B751 unless otherwise provided herein.8. Keywords8.1 UNS N08120; UNS N08800; UNS N08810; UNSN0881
19、1; welded tubeTABLE 1 Chemical RequirementsElementComposition Limits, %AlloyN08120AlloyN08800AlloyN08810AlloyN08811Nickel, min 35.0 30.0 30.0 30.0, max 39.0 35.0 35.0 35.0Chromium, 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
20、 , 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. 0.15 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 . .
21、.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 shall be determined arithmetically by difference.BAlloy UNS N08811: Al + Ti, 0.851.20.TABLE 2 Mechanical Property RequirementsAlloy
22、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) 30B515 95 (2014)
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24、e 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 or for additional standa
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26、tee 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 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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 95 (2014)3
