1、Designation: B351/B351M 13 (Reapproved 2018) Used in USDOE-NE standardsStandard Specification forHot-Rolled and Cold-Finished Zirconium and ZirconiumAlloy Bars, Rod, and Wire for Nuclear Application1This standard is issued under the fixed designation B351/B351M; the number immediately following the
2、designation indicates 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
3、four grades of wrought zirco-nium and zirconium alloy bars, rod, and wire as follows:1.1.1 R60001Unalloyed grade,1.1.2 R60802Zirconium-Tin alloy (Zircaloy 2),1.1.3 R60804Zirconium-Tin alloy (Zircaloy 4), and1.1.4 R60901Zirconium-Niobium alloy.1.2 Unless a single unit is used, for example corrosion m
4、assgain in mg/dm2, the values stated in either inch-pound or SIunits are to be regarded separately as standard. The valuesstated in each system are not exact equivalents; therefore eachsystem must be used independently of the other. SI valuescannot be mixed with inch-pound values.1.3 The following p
5、recautionary caveat pertains only to thetest method portions of this specification. This standard doesnot purport to address all of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety, health, and environ-mental pr
6、actices and determine the applicability of regulatorylimitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides an
7、d Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B350/B350M Specification for Zirconium and ZirconiumAlloy Ingots for Nuclear ApplicationE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE21 Te
8、st Methods for Elevated Temperature Tension Tests ofMetallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE114 Practice for Ultrasonic Pulse-Echo Straight-BeamContact TestingE214 Practice for Immersed Ultrasonic Testing by the Re-flection
9、 Method Using Pulsed Longitudinal Waves (With-drawn 2007)3G2/G2M Test Method for Corrosion Testing of Products ofZirconium, Hafnium, and Their Alloys in Water at 680F(360C) or in Steam at 750F (400C)3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 annealed, ndenotes material th
10、at exhibits a recrys-tallized grain structure.3.2 Lot Definition:3.2.1 lot, nmaterial of the same size, shape, condition, andfinish produced from the same ingot or powder blend by thesame reduction schedule and the same heat treatment param-eters. Unless otherwise agreed between manufacturer andpurc
11、haser, a lot shall be limited to the product of a 12 h periodfor final continuous anneal, or to a single furnace load for finalbatch anneal.3.3 Forms Definitions:3.3.1 bar, n:3.3.1.1 rounds, squares and hexagons, n38 in. 9.5 mmand over in diameter or size.3.3.1.2 flats, n14 to 10 in. 6.4 to 250 mm i
12、nclusive inwidth and18 in. 3.2 mm and over in thickness. Thickness18in. 3.2 mm to under316 in. 4.8 mm can be cold-rolled stripas well as bar.3.3.2 rod, nrounds in coils for subsequent reworking14 to34 in. 6.4 to 19 mm in diameter.3.3.3 wire, nmaterial less than38 in. 9.5 mm in diameteror size, in ro
13、und, hexagonal, or octagonal cross section,furnished in coils or on spools or reels.1This specification is under the jurisdiction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direct responsibility ofSubcommittee B10.02 on Zirconium and Hafnium.Current edition approved
14、 April 1, 2018. Published April 2018. Originallyapproved in 1960. Last previous edition approved in 2013 as B351/B351M 13.DOI: 10.1520/B0351_B0351M-13R18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMS
15、tandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis inter
16、national standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Com
17、mittee.14. Ordering Information4.1 Orders for materials under this specification shall in-clude the following information as applicable:4.1.1 Grade (see Section 1),4.1.2 Dimensions and form (see 3.3),4.1.3 Chemical analysis of elements not listed (see 6.1.3),4.1.4 Product analysis (see 6.1.1.1),4.1.
18、5 Tensile test temperatures (7.1),4.1.6 Material finish (Section 12),4.1.7 Metallurgical condition (see 8.1 and 8.2),4.1.8 Ultrasonic test standard hole size (see 9.2.2),4.1.9 Additional ultrasonic tests (see 9.2.4),4.1.10 Workmanship standards and methods of inspection(Section 13),4.1.11 Product ma
19、rking (Section 19), and4.1.12 Packaging and package marking (Section 20).4.2 In addition to the data specified in 4.1, the followingoptions and points of agreement between the manufacturer andthe purchaser should be specified on the purchase order asrequired:4.2.1 Tolerances (Section 11),4.2.2 Workm
20、anship standards (Section 13),4.2.3 Special tests (Section 9),4.2.4 Inspection (Section 16),4.2.5 Corrosion visual standards (9.1.2), and4.2.6 Oxygen limits (see footnote A, Table 1).5. Materials and Manufacture5.1 Material covered by this specification shall be madefrom ingots that conform to Speci
21、fication B350/B350M andthat are produced by vacuum or plasma arc melting, vacuumelectron-beam melting, a combination of these three methodsor other melting processes conventionally used for reactivemetals. All processes to be done in furnaces usually used forreactive metals.5.2 The various mill prod
22、ucts covered by this specificationshall be formed with the conventional extrusion, forging, orrolling equipment normally found in primary ferrous andnonferrous plants.6. Chemical Composition6.1 The grades of zirconium and zirconium alloy metalcovered by this specification shall conform to the chemic
23、alcomposition requirements prescribed in Table 1.6.1.1 The elements listed in Table 1 are intentional alloyadditions or elements that are inherent to the manufacture ofsponge, ingot or mill product.6.1.1.1 Elements other than those listed in Table 1 aredeemed to be capable of occurring in the grades
24、 listed in Table1 by and only by way of unregulated or unanalyzed scrapadditions to the ingot melt. Therefore, product analysis forelements not listed in Table 1 shall not be required unlessTABLE 1 Chemical RequirementsElementComposition, Weight %UNS R60001 UNS R60802 UNS R60804 UNS R60901Tin . . .
25、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) . . . . . . . . . 2.402.80OxygenAAA0.090.15Iron + chromium + nickel . . . 0.180.38 . . . . . .Iron + chromium . . . . . . 0.280.37 . . .Maximum Impuriti
26、es, Weight %Aluminum 0.0075 0.0075 0.0075 0.0075Boron 0.00005 0.00005 0.00005 0.00005Cadmium 0.00005 0.00005 0.00005 0.00005Calcium . 0.0030 0.0030 .Carbon 0.027 0.027 0.027 0.027Chromium 0.020 . . . . . . 0.020Cobalt 0.0020 0.0020 0.0020 0.0020Copper 0.0050 0.0050 0.0050 0.0050Hafnium 0.010 0.010 0
27、.010 0.010Hydrogen 0.0025 0.0025 0.0025 0.0025Iron 0.150 . . . . . . 0.150Magnesium 0.0020 0.0020 0.0020 0.0020Manganese 0.0050 0.0050 0.0050 0.0050Molybdenum 0.0050 0.0050 0.0050 0.0050Nickel 0.0070 . . . 0.0070 0.0070Niobium . 0.0100 0.0100 .Nitrogen 0.0080 0.0080 0.0080 0.0080Phosphorus . . . . .
28、 . . . . 0.0020Silicon 0.0120 0.0120 0.0120 0.0120Tin 0.0050 . . . . . . 0.010Tungsten 0.010 0.010 0.010 0.010Titanium 0.0050 0.0050 0.0050 0.0050Uranium (total) 0.00035 0.00035 0.00035 0.00035AWhen so specified in the purchase order, oxygen shall be determined and reported. Maximum, minimum, or bot
29、h, permissible values should be specified in the purchaseorder.B351/B351M 13 (2018)2specified in the purchase order and shall be considered to be inexcess of the intent of this specification.6.1.2 Elements intentionally added to the melt must beidentified, analyzed, and reported in the chemical anal
30、ysis.6.1.3 When agreed upon by producer and purchaser andrequested by the purchaser in his written purchase order,chemical analysis shall be completed for specific residualelements not listed in this specification.6.2 The manufacturers ingot analysis shall be consideredthe chemical analysis, except
31、for hydrogen, oxygen, andnitrogen content, which shall be determined on the finishedproduct. Alternatively, the manufacturer may sample an inter-mediate or final size during processing with the same fre-quency and in the same positions relative to the ingot, asspecified in Specification B350/B350M,
32、to determine thecomposition, except for hydrogen, oxygen, and nitrogen, whichshall be determined on the finished product.6.3 Check Analysis:6.3.1 Check analysis is an analysis made by the purchaser orthe manufacturer of the metal after it has been processed intofinished mill forms, and is either for
33、 the purpose of verifyingthe composition of a heat or lot or to determine variations in thecomposition within a heat or lot.6.3.2 Check analysis limits shall be as specified in Table 2.6.3.3 Check analysis tolerances do not broaden the specifiedheat analysis requirements but cover variations between
34、 labo-ratories in the measurement of chemical content.6.3.4 The manufacturer shall not ship material that isoutside the limits specified in Table 1 for the applicable grade.7. Mechanical Properties7.1 The material, as represented by the test specimens, shallconform to the tensile properties prescrib
35、ed in Table 3 whentested at ambient temperature. Elevated temperature propertiesshall be used to determine compliance only when specified inthe purchase order.7.2 Requirements for mechanical properties do not apply towire.8. Metallurgical Properties8.1 Unless otherwise stated in the purchase order,
36、the coldworked and annealed materials supplied under these specifica-tions shall be in the fully annealed condition, that is, at least90 % recrystallized. The percent recrystallization of hotworked and annealed material shall be as agreed upon betweenthe purchaser and manufacturer at the time of pur
37、chase.8.2 Grade R60901 in sizes under 1 in. 25 mm in minimumdimension furnished under this specification shall be in thecold-worked condition unless otherwise specified. Sizes 1 in.25 mm and over in minimum dimension shall be furnished inthe annealed condition unless otherwise specified.8.3 Other co
38、nditions, such as cold-worked or stress-relieved, can be specified as agreed upon between the pur-chaser and the manufacturer at the time of purchase.9. Special Requirements9.1 Corrosion Properties:9.1.1 The product shall be corrosion resistant when tested inaccordance with 15.2.4 and shall meet the
39、 criterion in 9.1.2.9.1.2 Acceptance Criterion:9.1.2.1 Grades R60802 and R60804All coupons thustested shall exhibit a continuous, black, lustrous oxide film andbe free of white or brown corrosion product in excess ofstandards previously agreed upon between manufacturer andpurchaser. Coupons shall ex
40、hibit a weight gain of not morethan 22 mg/dm2in a 72-h test or 38 mg/dm2in a 336-h test.9.1.2.2 Grade R60901All coupons shall exhibit acontinuous, uniform, dark gray oxide film. Coupons shallexhibit a weight gain of not more than 35 mg/dm2in a 72-h testor 60 mg/dm2in a 336-h test.9.2 Ultrasonic Insp
41、ection:9.2.1 In lieu of the ultrasonic test of the ingot as specified inSpecification B350/B350M, the manufacturer may alterna-tively perform ultrasonic inspection at an intermediate size inaccordance with Practices E114 and E214, with the approval ofthe purchaser.9.2.2 Unless otherwise specified by
42、 the purchaser, the ref-erence standard shall consist of a 0.06 in. 1.5 mm flat bottomhole drilled perpendicular to the longitudinal product axis to adepth of 0.5 in. 13 mm.9.2.3 Any defect reflections greater than the indication fromthe reference standard should be rejected.9.2.4 Additional tests m
43、ay be specified in the purchaseorder. The test method and standards shall be agreed upon inadvance between manufacturer and purchaser.10. Significance of Numerical Limits10.1 For the purpose of determining compliance with thespecified limits for requirements of the properties listed in thefollowing
44、table, an observed value or a calculated value shallbe rounded as indicated in accordance with the roundingmethods of Practice E29.Property Rounded Unit for Observedor Calculated ValueChemical composition, and tolerances(when expressed as decimals)nearest unit in the last right-hand placeof figures
45、of the specified limitTensile strength and yield strength nearest 1000 psi 10 MPaElongation nearest 1 %11. Permissible Variations in Dimensions11.1 Table 4, Permissible variations in sectional dimensionsfor hot-worked bars in rounds and squares.TABLE 2 Permissible Variations in Product AnalysisAlloy
46、ing ElementsPermissible Variation from theSpecified Range (Table 1), %Tin 0.050Iron 0.020Chromium 0.010Nickel 0.010Iron + chromium 0.020Iron + chromium + nickel 0.020Niobium 0.050Oxygen 0.020Each Impurity Element 20 ppm or 20 % of the specifiedlimit, whichever is smallerB351/B351M 13 (2018)311.2 Tab
47、le 5, Permissible variations in hot-rolled flat bars orbars sheared from plate.11.3 Table 6, Permissible variations in forged bars.11.4 Table 7, Permissible variations in diameter for cold-finished bars.11.5 Table 8, Permissible variations in diameter for roundwire.11.6 Table 9, Permissible variatio
48、ns in length for hot- orcold-finished bars.11.7 Table 10, Permissible variations in straightness forhot-or cold-finished bars.12. Finish12.1 Hot-worked shapes shall be furnished with one of thefollowing finishes, as designated in the purchase order:12.1.1 Not descaled,12.1.2 Mechanically descaled, o
49、r12.1.3 Mechanically descaled and pickled.12.1.4 Other as specified in the purchase order.12.2 Cold-worked shapes shall be furnished with one of thefollowing, as designated in the purchase order:12.2.1 Cold-worked,12.2.2 Ground 32 in. 0.8 m rms or better, or12.2.3 Pickled.12.2.4 Other as specified in the purchase order.13. Workmanship and Appearance13.1 Cracks, seams, slivers, blisters, burrs, and other inju-rious imperfections shall not exceed standards of acceptabilityagreed upon by the manufacturer and the purchase
