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ASTM_B_729_-_05_2014.pdf

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1、Designation:B72905(Reapproved 2014)Standard Specification forSeamless UNS N08020,UNS N08026,and UNS N08024Nickel-Alloy Pipe and Tube1This standard is issued under the fixed designation B729;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revi

2、sion,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 UNS N08020,UNS N08026,and UNS N08024 seamless,cold-worked or hot finished pipean

3、d tube intended for 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 The following safety hazards caveat

4、pertains only to thetest methods portion,Section 10,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to become familiar with all hazards includingthose identified in the appro

5、priate Material Safety data Sheet(MSDS)for this product/material as provided by themanufacturer,to establish appropriate safety and healthpractices,and determine the applicability of regulatory limi-tations prior to use.2.Referenced Documents2.1 ASTM Standards:2B829 Specification for General Require

6、ments for Nickel andNickel Alloys Seamless Pipe and TubeE8 Test Methods for Tension Testing of Metallic Materials3.General Requirement3.1 Material furnished under this specification shall con-form to the applicable requirements of Specification B829unless otherwise provided herein.4.Ordering Informa

7、tion4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for the safe and satisfactoryperformance of material ordered under this specification.Examples of such requirements include,but are not limited to,the following:4.1.1 Alloy name or UNS number.4.1.2 ASTM d

8、esignation and year of issue.4.1.3 Finish.4.1.4 Dimensions:4.1.4.1 TubeSpecify outside diameter and the average orminimum wall thickness.4.1.4.2 PipeSpecify standard pipe size and schedule.4.1.4.3 Length,(cut to length or random).4.1.5 Quantity(feet or number of pieces).4.1.6 Hydrostatic Test or Non

9、destructive Electric TestSpecify type of test(see 7.2):4.1.6.1 Hydrostatic Pressure RequirementsSpecify testpressure if other than required by 10.1.4.1.7 EndsPlain ends cut and deburred will be furnished.If threaded ends or ends beveled for welding are desired,givedetails.4.1.8 CertificationState if

10、 certification is required.4.1.9 Samples for Product(Check)AnalysisState whethersamples for product(check)analysis should be furnished(see6.2).4.1.10 Purchaser InspectionIf the purchaser wishes towitness tests or inspection of material at the place ofmanufacture,the purchase order must so state,indi

11、catingwhich tests or inspections are to be witnessed.5.Materials and Manufacture5.1 The product of UNS N08020 alloy shall be furnished inthe stabilized-annealed condition.The product of UNS N08026alloy shall be furnished in the solution-annealed condition.Theproduct of UNS N08024 alloy shall be furn

12、ished in theannealed condition.NOTE1The recommended annealing temperatures all followed byquenching in water or rapidly cooling by other means are as follows:1800to 1850F(982 to 1010C)for UNS N08020,2050 to 2200F(1121 to1204C)for UNS N08026,and 1925 to 1975F(1052 to 1079C)for UNSN08024.1This specifi

13、cation is under the 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 Oct.1,2014.Published October 2014.Originallyapproved in 1984.Last previous edition appro

14、ved in 2009 as B729 05(2009).DOI:10.1520/B0729-05R14.2For 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 AST

15、M International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Chemical Composition6.1 The material shall conform to the composition limitsspecified in Table 1.One test is required for each lot as definedin Specification B829.6.2 If a product analysis is performed

16、 by the purchaser,thematerial shall conform to the composition limits specified inTable 1 subject to the product analysis tolerances specified inTable 1 of Specification B829.7.Mechanical and Other Properties7.1 Mechanical PropertiesThe material shall conform tothe mechanical property requirements specified in Table 2.7.2 Hydrostatic or Nondestructive Electric TestEach pipeand tube shall be subjected to either the hydrostatic test or thenondestructive electric test.The type of test to be used sh

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