1、Designation: B739 03 (Reapproved 2013)Standard Specification forNickel-Iron-Chromium-Silicon Alloy Welded Tube1This standard is issued under the fixed designation B739; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la
2、st 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 alloys UNS N08330 and UNSN08332 in the form of welded tube intended for heat resistingapplicat
3、ions and general corrosive service.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.1.3 This standard does not purport to address all
4、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 appropriateMaterial Safety Data Sheet (MSDS) for this product/materialas provided by the manufacturer, to establish approp
5、riatesafety and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B536 Specification for Nickel-Iron-Chromium-Silicon Al-loys (UNS N08330 and N08332) Plate, Sheet, and StripB751 Specification for General Requirements fo
6、r Nickel andNickel Alloy Welded Tube3. General Requirement3.1 Material furnished under this specification shall con-form to the applicable requirements of Specification B751unless otherwise provided herein.4. Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirement
7、s that are necessary for material ordered under thisspecification. Examples of such requirements include, but arenot limited to, the following:4.1.1 Alloy (Table 1),4.1.2 ASTM designation and year of issue,4.1.3 Dimensions (outside or inside diameter and nominalwall thickness),4.1.4 Length (specific
8、 or random),4.1.5 Quantity (feet or number of pieces),4.1.6 CertificationState if certification is required,4.1.7 Samples for Product (Check) AnalysisState whethersamples for product (check) analysis should be furnished, and4.1.8 Purchaser InspectionIf purchaser wishes to witnesstests or inspection
9、of material at place of manufacture, thepurchase order must so state indicating which tests or inspec-tions are to be witnessed.5. Materials and Manufacture5.1 The tube shall be made from flat-rolled alloy conform-ing to Specification B536, by an automatic welding processwith no addition of filler m
10、etal. Subsequent to welding andprior to final heat treatment, the tube shall be cold-workedeither in both weld and base metal or in weld metal only.6. Chemical Composition6.1 The material shall conform to the requirements, as tochemical composition specified in Table 2.6.2 If a product (check) analy
11、sis is performed by thepurchaser, the material shall conform to the product (check)analysis variations per Specification B751.7. Mechanical Properties and Other Requirements7.1 The tensile properties of the material at room tempera-ture shall conform to those shown in Table 1.7.2 Grain SizeAnnealed
12、Alloy UNS N08332 shall con-form to an average grain size of ASTM No. 5 or coarser.7.3 Annealing TemperatureAlloy UNS N08330 shall beannealed at 1900F (1040C) minimum. Alloy UNS N08332shall be annealed at 2050F (1120C) minimum.8. Keywords8.1 welded tube; N08330; N083321This specification is under the
13、 jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Feb. 1, 2013. Published February 2013. Originallyapproved in 1985. Last previous edition approved in 2008 a
14、s B739 03 (2008).DOI: 10.1520/B0739-03R13.2For 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.Copyright ASTM Inte
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18、r comments have not received a fair hearing you shouldmake your views 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 (sing
19、le 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 ASTM website
20、 (www.astm.org/COPYRIGHT/).TABLE 1 Mechanical PropertiesAlloy ConditionTensile Strength,min, psi (MPa)Yield Strength, 0.2 %offset, min, psi(MPa)Elongation in 2 in. or50 mm, or 4D, min,%HardnessAUNS N08330 Annealed 70 000 (483) 30 000 (207) 30 7090 HRBUNS N08332 Annealed 67 000 (462) 27 000 (186) 30
21、6588 HRBAHardness values are informative only and not to be construed as the basis for acceptance.TABLE 2 Chemical RequirementsElement Composition Limits, %Carbon .AManganese 2.00 maxPhosphorus 0.03 maxSulfur 0.03 maxSilicon 0.751.50Chromium 17.020.0Nickel 34.037.0Copper 1.00 maxLead 0.005 maxTin 0.025 maxIron remainderBAAlloy UNS N08330: 0.08 max.Alloy UNS N08332: 0.050.10.BElement shall be determined arithmetically by difference.B739 03 (2013)2
