1、Designation:B350/B350M02(Reapproved2006) Designation: B350/B350M 11Used in USNRC-RDT standardsStandard Specification forZirconium and Zirconium Alloy Ingots for NuclearApplication1This standard is issued under the fixed designation B350/B350M; the number immediately following the designation indicat
2、es the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers vacuum-melted zirco
3、nium and zirconium alloy ingots for nuclear application.1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI unitsare shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall
4、 be usedindependently of the other. Combining values from the two systems may result in nonconformance with the specification.1.3 The following precautionary caveat pertains only to the test method portions of this specification: This standard does notpurport to address all of the safety concerns, i
5、f any, associated with its use. It is the responsibility of the user of this standard toestablish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E29 Practice for Using Significant Digits in Tes
6、t Data to Determine Conformance with SpecificationsE114 Practice for Ultrasonic Pulse-Echo Straight-Beam Contact Testing Practice for Ultrasonic Pulse-Echo Straight-BeamContact TestingE2626 Guide for Spectrometric Analysis of Reactive and Refractory Metals3. Terminology3.1 Lot Definitions:3.1.1 cast
7、ings, na lot shall consist of all castings produced from the same pour.3.1.2ingot, nno definition required.3.1.3rounds, flats, tubes, and wrought powder metallurgical products (single definition, common to nuclear and non-nuclearstandards), na lot shall consist of a material of the same size, shape,
8、 condition, and finish produced from the same ingot orpowder blend by the same reduction schedule and the same heat treatment parameters. Unless otherwise agreed betweenmanufacturer and purchaser, a lot shall be limited to the product of an 8 h period for final continuous anneal, or to a single furn
9、aceload for final batch anneal.3.1.4sponge, na lot shall consist of a single blend produced at one time.3.1.5weld fittings, ndefinition is to be mutually agreed upon between manufacturer and the purchaser. a quantity of metalcast into a shape suitable for subsequent processing to various mill produc
10、ts.4. Classification4.1 Ingots are furnished in five grades as follows:4.1.1 R60001 Unalloyed Zirconium,4.1.2 R60802 Zirconium-Tin Alloy,4.1.3 R60804 Zirconium-Tin Alloy,4.1.4 R60901 Zirconium-Niobium Alloy, and4.1.5 R60904 Zirconium-Niobium Alloy.1This specification is under the jurisdiction of AST
11、M Committee B10 on Reactive and Refractory Metals and Alloys and is the direct responsibility of SubcommitteeB10.02 on Zirconium and Hafnium.Current edition approved Sept.April 1, 2006.2011. Published September 2006.April 2011. Originally approved in 1960. Last previous edition approved in 20022006
12、asB350/B350M 02 (2006). DOI: 10.1520/B0350_B0350M-02R06.10.1520/B0350_B0350M-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page
13、 on the ASTM website.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that u
14、sers consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Ordering Information5.1
15、 Orders for material under this specification should include the following information as required to describe adequately thedesired material:5.1.1 Quantity in weight or pieces,5.1.2 Name of material,5.1.3 Grade (Table 1),5.1.4 Size (diameter, length, or weight), in the unit system regarded as stand
16、ard (inch-pound or SI), and5.1.5 ASTM designation and year of issue.NOTE 1Atypical ordering description is as follows: two each zirconium ingots, Grade R60001, 12 in. diameter by 1000 lb each,ASTM Specification:B350/B350M 01.5.2 In addition to the data specified in 5.1, the following options and poi
17、nts of agreement between the manufacturer and thepurchaser should be specified in the purchase order if required:5.2.1 Inspection (Section 12), and5.2.2 Oxygen analysis requirements (Table 1).6. Materials and Manufacture6.1 Materials covered by this specification shall be produced by multiple vacuum
18、 arc melting, or electron beam melting, or othermelting processes conventionally used for reactive metals; all melting is to be carried out in furnaces usually used for reactivemetals.7. Condition7.1 Unless otherwise specified, ingots shall be conditioned by machining or grinding or both to remove s
19、urface and subsurfacedefects detrimental to subsequent fabrication.7.2 After conditioning has been completed, no abrupt changes in diameter or local depression that will impair subsequentfabrication shall be permitted. The difference between the maximum and minimum radii of the conditioned ingot sha
20、ll not exceed20 % of the maximum radius. Lands, grooves, and local depressions shall be blended to a maximum angle of 30 to the axis ofthe ingot. Each end of the ingot shall be chamfered or radiused. The minimum chamfer or radius shall be12 in. 12 mm.TABLE 1 Chemical RequirementsElementComposition,
21、Weight %UNS R60001 UNS R60802 UNS R60804 UNS R60901 UNS R60904Tin . 1.201.70 1.201.70 . .Iron . 0.070.20 0.180.24 . .Chromium . 0.050.15 0.070.13 . .Nickel . 0.030.08 . . .Niobium (columbium) . . . 2.402.80 2.502.80OxygenAA A0.090.15AIron + chromium + nickel . 0.180.38 . . .Iron + chromium . . 0.280
22、.37 . .Maximum Impurities, Weight %Aluminum 0.0075 0.0075 0.0075 0.0075 0.0075Boron 0.00005 0.00005 0.00005 0.00005 0.00005Cadmium 0.00005 0.00005 0.00005 0.00005 0.00005Calcium . 0.0030 0.0030 . .Carbon 0.027 0.027 0.027 0.027 0.027Chromium 0.020 . . 0.020 0.020Cobalt 0.0020 0.0020 0.0020 0.0020 0.
23、0020Copper 0.0050 0.0050 0.0050 0.0050 0.0050Hafnium 0.010 0.010 0.010 0.010 0.010Hydrogen 0.0025 0.0025 0.0025 0.0025 0.0010Iron 0.150 . . 0.150 0.150Magnesium 0.0020 0.0020 0.0020 0.0020 0.0020Manganese 0.0050 0.0050 0.0050 0.0050 0.0050Molybdenum 0.0050 0.0050 0.0050 0.0050 0.0050Nickel 0.0070 .
24、0.0070 0.0070 0.0070Niobium . 0.0100 0.0100 . .Nitrogen 0.0080 0.0080 0.0080 0.0080 0.0080Phosphorus . . . 0.0020 0.0020Silicon 0.0120 0.0120 0.0120 0.0120 0.012Tin 0.0050 . . 0.010 0.010Tungsten 0.010 0.010 0.010 0.010 0.010Titanium 0.0050 0.0050 0.0050 0.0050 0.0050Uranium (total) 0.00035 0.00035
25、0.00035 0.00035 0.00035AWhen so specified in the purchase order, oxygen shall be determined and reported. Maximum, minimum, or both, permissible values should be specified in thepurchase order.B350/B350M 1128. Chemical Requirements8.1 The ingot shall conform to the requirements for chemical composit
26、ion as prescribed in Table 1. . Guide E2626 may be usedas a guide for chemical analysis techniques.8.2 The ingot shall be sampled in sufficient places along the side wall so that the top sample is within 5 in. 125 mm of thetop face and the distance between samples or between the bottom face and a sa
27、mple does not exceed one ingot diameter. Aminimum of three samples per ingot is required.8.3 These samples shall be analyzed for the alloying and impurity elements given in Table 1.8.4 Analysis shall be made using the manufacturers standard methods. In the event of disagreement as to the chemicalcom
28、position of the metal, methods of chemical analysis for reference purposes shall be determined by a mutually acceptablelaboratory.8.5 Product Check AnalysisProduct check analysis is an analysis made by or for the purchaser for the purpose of verifyingthe composition of the ingot. The check analysis
29、tolerances reflect the variation between laboratories in the measurement ofchemical composition. The permissible variation in the product check analysis from the specified range is as prescribed in Table2.9. Retest9.1 If any sample or specimen exhibits obvious contamination, improper preparation, or
30、 flaws disqualifying it as a representativesample, it shall be discarded and a new sample or specimen substituted.9.2 If the results of any test are not in conformance with the requirements of this specification, the ingot may be retested at theoption of the manufacturer. The manufacturer may scalp
31、or crop the ingot to remove nonconforming material then resampleremaining ingot position(s). The ingot shall be acceptable if all results of retests following the initial test(s) conform to thisspecification.10. Significance of Numerical Limits10.1 For purposes of determining compliance with the spe
32、cified limits for requirements of the properties listed in Table 1 andTable 2, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of PracticeE29.11. Ultrasonic Test11.1 Ingots shall be inspected ultrasonically by the methods described in 11.1
33、.1 and 11.1.2 unless otherwise agreed uponbetween the manufacturer and the purchaser.11.1.1 StandardizationThe test shall be conducted in accordance with Practice E114. The search unit shall be a longitudinalbeam transducer, operated at a maximum frequency of 214 MHz using a suitable couplant with t
34、he piece being tested. The searchunit shall be standardized on a test block, setting the back reflection equal to 100 %. The test block shall be of the sameapproximate diameter and surface condition as the ingot. Standardization is required before the inspection begins on the ingot.11.1.2 Unless oth
35、erwise approved by the purchaser, the reference standard shall consist of an ingot section containing two0.093-in. 2.4-mm diameter holes, one of which shall be radially located at the approximate ingot center, the other at theapproximate mid-radius position. These drilled holes shall terminate at a
36、plane (normal to the longitudinal ingot axis) located 0.5in. 12 mm below the ingot end face. During calibration, the two reference holes should line up with the beam, with the mid-radiushole farthest from the search unit. Then the complete length of the ingot shall be inspected. Two traverses shall
37、be made along thelength of the cylindrical ingot surface 90 degrees apart. Additional traverses shall be made if the entire ingot is not adequatelyinspected by this procedure. Remove defect indications observed that exceed that of the reference standard. If the back reflectionis between 50 and 95 %,
38、 increase the gain to bring back reflection up to 100 % and inspect the trace indication to observe anyinternal reflections greater than the indication from the reference standard. Again, remove any such defects. Following suchTABLE 2 Permissible Variations in Product AnalysisAlloyingElementsPermiss
39、ible Variation fromthe Specified Range(Table 1), %Tin 0.050Iron 0.020Chromium 0.010Nickel 0.010Iron + chromium 0.020Iron + chromium + nickel 0.020NiobiumOxygen0.0500.020Each impurity element20 ppm or 20 % of the specifiedlimit, whichever is smallerB350/B350M 113amplitude adjustment and inspection, r
40、ecalibrate the search unit on the test block. Note the position of all lesser defects and reportthem to the purchaser along with the ingot number.12. Inspection12.1 The manufacturer shall inspect the material covered by this specification prior to shipment. If so specified on the purchaseorder, the
41、purchaser or his representative may witness the testing and inspection of the material at the place of manufacture. In suchcases, the purchaser shall state in his purchase order which tests he desires to witness. The manufacturer shall give ample noticeto the purchaser as to the time and place of th
42、e designated tests. If the purchasers representative is not present at the time agreedupon for the testing, the manufacturer shall consider the requirement for purchasers inspection at place of manufacture to bewaived.12.2 The manufacturer shall afford the inspector representing the purchaser, witho
43、ut charge, all reasonable facilities to satisfyhim that the material is being furnished in accordance with this specification. This inspection shall be conducted so as not tointerfere unnecessarily with the operation of the works.13. Rejection13.1 Rejection for failure of the material to meet this s
44、pecification shall be reported to the manufacturer within 60 calendar daysfrom the receipt of the material by the purchaser. Unless otherwise specified, rejected material may be returned to the manufacturerat the manufacturers expense, unless the purchaser receives, within three weeks of the notice
45、of rejection, other instructions fordisposition.14. Referee14.1 In the event of disagreement between the manufacturer and the purchaser on the conformance of the material to therequirements of this specification or any special test specified by the purchaser, a mutually acceptable referee shall perf
46、orm the testsin question. The results of the referees testing shall be used in determining conformance of the material to this specification.15. Certification15.1The manufacturer shall, on request, furnish to the purchaser a certificate of test showing the results of testing and inspectionperformed
47、on each ingot ordered.15.1 A producers or suppliers certification shall be furnished to the purchaser that the material was manufactured, sampled,tested, and inspected in accordance with this specification and has been found to meet the requirements. A report of the test resultsshall be furnished.16
48、. Packaging and Marking16.1 Each ingot shall be metal die stamped on the top with the manufacturers ingot number. Each box or skid shall be legiblyand conspicuously marked or tagged with the following information:16.1.1 Order or contract number,16.1.2 Name of material,16.1.3 Grade,16.1.4 Ingot numbe
49、r,16.1.5 Nominal diameter,16.1.6 Gross, net, and tare weights, and16.1.7 ASTM specification number.16.2 Ingots shall be boxed or banded on skids in such a manner as to assure safe delivery to their destination when properlytransported by any common carrier.17. Keywords17.1 ingot; nuclear reactor; reactor grade; zirconium; zirconium alloyASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determina
