ASTM B349 B349M-2003 Standard Specification for Zirconium Sponge and Other Forms of Virgin Metal for Nuclear Application.pdf

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1、Designation: B 349/B 349M 03Standard Specification forZirconium Sponge and Other Forms of Virgin Metal forNuclear Application1This standard is issued under the fixed designation B 349/B 349M; the number immediately following the designation indicates the yearof original adoption or, in the case of r

2、evision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers one grade of virgin zirconiummetal commonly designated as sponge becau

3、se of its porous,sponge-like texture, but it may also take other forms such aschunklets.1.2 The one grade described is designated as Reactor GradeR60001, suitable for use in nuclear applications. The maincharacteristic of the reactor grade is its low nuclear crosssection as achieved by removal of ha

4、fnium. The manufacturermust use procedures to prevent contamination with other highcross-section materials.1.3 Unless a single unit is used, for example corrosion massgain in mg/dm2, the values stated in either inch-pound or SIunits are to be regarded separately as standard. The valuesstated in each

5、 system are not exact equivalents; therefore eachsystem must be used independently of the other. SI valuescannot be mixed with inch-pound values.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 stand

6、ard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications23. Terminology3.1 Lot Defini

7、tions:3.1.1 castingsa lot shall consist of all castings producedfrom the same pour.3.1.2 ingotno definition required.3.1.3 rounds, flats, tubes, and wrought powder metallurgicalproducts (single definition, common to nuclear and non-nuclear standards)a lot shall consist of a material of thesame size,

8、 shape, condition, and finish produced from the sameingot or powder blend by the same reduction schedule and thesame heat treatment parameters. Unless otherwise agreedbetween manufacturer and purchaser, a lot shall be limited tothe product of an 8 h period for final continuous anneal, or toa single

9、furnace load for final batch anneal.3.1.4 spongea lot shall consist of a single blend producedat one time.3.1.5 weld fittingsdefinition is to be mutually agreed uponbetween manufacturer and the purchaser.4. Ordering Information4.1 Purchase orders for material under this specificationshall include th

10、e following information, as required, to describeadequately the desired material:4.1.1 Quantity,4.1.2 Name of material,4.1.3 Grade designation, and4.1.4 ASTM designation and year of issue.NOTE 1A typical ordering description is as follows: 5000 lb (2000 kg)reactor grade zirconium, Grade R60001, ASTM

11、 Specification B 349 - 01.4.2 In addition to the data specified in 4.1, the followingoptions and points of agreement between the manufacturer andthe purchaser shall be specified in the purchase order, asrequired.4.2.1 Sampling and duplicate samples (see 7.1 and 7.2).4.2.2 Certification reports (Sect

12、ion 13), and4.2.3 Packaging (Section 15).5. Materials and Manufacture5.1 Zirconium metal is usually prepared by reduction ofzirconium tetrachloride, and gets its physical characteristicsfrom the processes involved in production. These characteris-tics may be expected to vary greatly with manufacturi

13、ngmethods. This specification, however, is not limited to materialprepared by reduction of tetrachloride or to material of anyspecific physical form.1This specification is under the jurisdiction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direct responsibility ofSubc

14、ommittee B10.02 on Zirconium and Hafnium.Current edition approved May 10, 2003. Published May 2003. Originallyapproved in 1960. Last previous edition approved in 2001 as B 349 01.2Annual Book of ASTM Standards, Vol 14.02.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshoh

15、ocken, PA 19428-2959, United States.5.2 Only virgin zirconium metal, in identified, uniform,well-mixed blends, shall be supplied under this specification.6. Chemical Composition6.1 The zirconium metal supplied under this specificationshall conform to the requirements for chemical compositionprescrib

16、ed in Table 1.7. Sampling7.1 A blend of sponge shall be sampled by running a fullquantity through a proportioner or splitter to obtain a repre-sentative sample of at least 1 % of the blend weight. Thesamples for chemical analyses shall be made on a compactedbriquette and an evaluation ingot. The met

17、hod for splitting thissample and preparing an evaluation ingot and compactedbriquette shall be agreed upon between the manufacturer andthe purchaser.7.1.1 The evaluation ingot shall be greater than 30 lb (14kg).7.1.2 The compacted briquette shall be at least 1 lb (0.5 kg).7.2 When specified in the p

18、urchase order, a duplicatesample or portions of the briquette and evaluation ingot shallbe supplied to the purchaser.7.3 For metal forms other than sponge, such as chunklets,the sampling procedures shall be as agreed upon betweenpurchaser and manufacturer.8. Methods of Chemical Analysis8.1 Preparati

19、on of Sample:8.1.1 Compact the sponge sample taken in accordance withSection 7 into a consumable electrode and melt to ingot formin an arc furnace of a type conventionally used for reactivemetals. The ingot shall be prepared for analysis by either of thefollowing two methods:8.1.1.1 Take a longitudi

20、nal section through the center of theingot. Sample this section and analyze by appropriate means ata minimum of three places at approximately equal intervalsdiagonally from the top to the bottom of the section.8.1.1.2 Samples for chemical tests shall be taken from solidmetal below the surface porosi

21、ty of the as-cast ingot. Thesamples shall be taken from a minimum of three places equallyspaced along the axial length of the ingot.8.2 Analytical samples for the determination of chlorinemust be taken from the sponge, since this element is volatilizedin melting. Obtain this sample by drilling a com

22、pacted sampleof the sponge or chunklets. Sample the briquette by drilling,without water or other lubricant, a minimum of three holes,each38 in. (9.5 mm) or larger in diameter, at equal intervals ona circle, concentric with the rounded surface of the briquette.Reject chips until the flutes of the dri

23、ll are14 in. (6 mm) belowthe surface of the briquette. Take the sample chips from thispoint until the point of the drill is within14in. (6 mm) of theopposite surface of the briquettes. Crush chips taken in thismanner to pass a No. 4 (4760-m) sieve and thoroughly mix.8.3 Analyze one of the samples ta

24、ken in accordance with8.1.1 for its uranium content. Analyze all samples taken inaccordance with 8.1.1 for all elements listed in Table 1 exceptfor chlorine and uranium.8.4 AnalysisAnalysis shall be made using the manufac-turers standard methods. In the event of disagreement as to thechemical compos

25、ition of the metal, chemical analysis forreferee purposes shall be determined by a mutually acceptablelaboratory. The average of the analyses for each impurity shallconform to the requirements of this specification, with noindividual value greater than 30 % above the maximum speci-fied limit for tha

26、t impurity. Practice E 29 shall be used toestablish significant digits.9. Particle Size9.1 Zirconium sponge supplied under this specification shallpass a 1 in. (25 mm) screen and shall contain less than 2 %minus 20 mesh particles.10. Retest10.1 If any sample or specimen exhibits obvious contami-nati

27、on, or improper preparation, or flaws which disqualify it asa representative sample, the sample shall be discarded and anew sample or specimen substituted.11. Rejection11.1 Rejection for failure of the material to meet therequirements of this specification shall be reported to themanufacturer within

28、 60 calendar days from the receipt of thematerial by the purchaser. Unless otherwise specified, rejectedmaterial may be returned to the manufacturer at the manufac-turers expense, unless the purchaser receives, within threeweeks of the notice of rejection, other instructions for dispo-sition.12. Ref

29、eree12.1 In the event of disagreement between the manufacturerand the purchaser on the conformance of the material to therequirements of this specification or any special test specifiedby the purchaser, a mutually acceptable referee shall performthe tests in question. The results of the referees tes

30、ting shall beused in determining conformance of the material to thisspecification.TABLE 1 Chemical Requirements of Zirconium Sponge, ReactorGrade R60001Element PermissibleImpurities,max,ppmAluminum 75Boron 0.5Cadmium 0.5Carbon 250Chlorine 1300Chromium 200Cobalt 20Copper 30Hafnium 100Iron 1500Mangane

31、se 50Molybdenum 50Nickel 70Nitrogen 50Oxygen 1400Silicon 120Titanium 50Tungsten 50Uranium (total) 3.0B 349/B 349M 03213. Certification13.1 When specified in the purchase order or contract, aproducers or suppliers certification shall be furnished to thepurchaser that the material was manufactured, sa

32、mpled, tested,and inspected in accordance with this specification and hasbeen found to meet the requirements. When specified in thepurchase order or contract, a report of the test results shall befurnished.14. Product Marking14.1 The containers shall be legibly and permanentlymarked with the followi

33、ng information:14.1.1 Purchase order number,14.1.2 Name of material,14.1.3 Particle size range,14.1.4 Net weight,14.1.5 ASTM designation, and14.1.6 Date packed.15. Packaging and Package Marking15.1 The method of packaging shall be as agreed upon bythe manufacturer and the purchaser. Packaging shall

34、be such asto assure safe delivery when shipped by any common carrier.The size and nature of the containers used are generallydetermined by the time and length of storage and the amount ofhandling involved. Where fire hazards or sponge deteriorationduring prolonged storage are primary considerations,

35、 zirco-nium sponge should be packed in airtight, moisture-proof,sealed metal cans or drums which have been backfilled withargon.16. Keywords16.1 nuclear; virgin zirconium metal; zirconium spongeASTM International takes no position respecting the validity of any patent rights asserted in connection w

36、ith 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 infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible tec

37、hnical 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 standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful considera

38、tion 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 known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr H

39、arbor 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).B 349/B 349M 033