1、Designation:B72300(Reapproved 2014)Standard Specification forNickel-Chromium-Molybdenum-Cobalt-Tungsten-Iron-SiliconAlloy(UNS N06333)Welded Pipe1This standard is issued under the fixed designation B723;the number immediately following the designation indicates the year oforiginal adoption or,in the
2、case of 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 wrought alloy UNS N06333 inthe form of welded pipe intended for heat
3、-resisting applicationsand 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 purpor
4、t 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 appropriatedMaterial Safety Data Sheet(MSDS)for this product/materialas provided by the manufacturer,to esta
5、blish appropriatesafety and health practices,and determine the applicability ofregulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2B775 Specification for General Requirements for Nickel andNickel Alloy Welded PipeB718 Specification for Nickel-Chromium-Molybdenum-Cobalt-Tung
6、sten-Iron-Silicon Alloy(UNS N06333)Plate,Sheet,and Strip3.General Requirement3.1 Material furnished in accordance with this specificationshall conform to the applicable requirements of the currentedition of Specification B775 unless otherwise providedherein.4.Ordering Information4.1 It is the respon
7、sibility 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 designation and year of i
8、ssue.4.1.3 Condition(temper)(Table 1).4.1.4 Dimensions:4.1.4.1 Nominal pipe size or outside diameter and schedulenumber or nominal wall thickness.4.1.4.2 Length(specific or random).4.1.5 Quantity(feet or metres,or number of pieces).4.1.6 CertificationState if certification or a report of testresults
9、 is required.4.1.7 Samples for Product(Check)AnalysisState whethersamples for product(check)analysis should be furnished.4.1.8 Purchaser InspectionIf purchaser wishes to witnesstests or inspection of material at place of manufacture,thepurchase order must so state indicating which tests or inspec-ti
10、ons are to be witnessed.5.Material and Manufacture5.1 The pipe shall be made from flat-rolled alloy conform-ing to Specification B718,by an automatic welding processwith no addition of filler metal.5.2 Pipe shall be furnished annealed after welding,withoxide removed.When final heat treatment is perf
11、ormed in aprotective atmosphere,descaling is not necessary.6.Chemical Requirements6.1 The material shall conform to the requirements as tochemical composition specified in Table 1.6.2 If a product(check)analysis is performed by thepurchaser,the material shall conform to the product(check)analysis va
12、riations in the Dimensions of Pipe table in Specifi-cation B775.7.Mechanical and Other Requirements7.1 The mechanical properties of the material at roomtemperature shall conform to those shown in Table 2.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Allo
13、ys 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 1983.Last previous edition approved in 2009 as B723 00(2009).DOI:10.1520/B0723-00R14.2For referenced ASTM standards
14、,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,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.U
15、nited States1 7.2 Flattening TestOne flattening test shall be made onone end of one pipe from each lot.7.3 Nondestructive Test Requirements:7.3.1 Pipe shall be subjected to a pressure test or nonde-structive electric test at the manufacturers option.8.Dimensions and Permissible Variations8.1 Lengths
16、Pipe lengths shall be in accordance with thefollowing regular practice.8.1.1 Unless otherwise agreed upon,all sizes from18in.(3.17 mm)to 8 in.(203 mm)nominal pipe size are available ina length up to 24 ft(7.32 m).The aim range will be 20 to 24ft(6.10 to 7.32 m)with the permissible range of 15 to 24 ft(4.57 to 7.32 m).Short lengths are acceptable and the numberand minimum length shall be agreed upon between themanufacturer and purchaser.8.1.2 If definite cut lengths are desired the lengths acquir
