1、Designation: B551/B551M 12 (Reapproved 2017)Standard Specification forZirconium and Zirconium Alloy Strip, Sheet, and Plate1This standard is issued under the fixed designation B551/B551M; the number immediately following the designation indicates the yearof original adoption or, in the case of revis
2、ion, 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 specification2covers five grades of zirconium strip,sheet, and plate.1.2 Unless a single unit is
3、 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 system are not exact equivalents; therefore eachsystem must be used independently of the other. SI valuescannot be mixed with inch-po
4、und values.1.3 The following precautionary 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,
5、 health, and environ-mental practices 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 Inte
6、rnational Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3E8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermi
7、ne Conformance with SpecificationsE290 Test Methods for Bend Testing of Material for Ductil-ity3. Terminology3.1 Definitions:3.1.1 annealed, ndenotes material that exhibits a recrys-tallized grain structure.3.2 Lot Definition:3.2.1 lot, na lot shall consist of a material of the same size,shape, cond
8、ition, and finish produced from the same ingot orpowder blend by the same reduction schedule and the sameheat treatment parameters. Unless otherwise agreed betweenmanufacturer and purchaser, a lot shall be limited to theproduct of an 8 h period for final continuous anneal, or to asingle furnace load
9、 for final batch anneal.3.3 Forms:3.3.1 strip, na flat product, may be supplied in coil, lessthan 6 in. 150 mm in width and from 0.005 in. 0.13 mm to0.188 in. 4.8 mm in thickness.3.3.2 sheet, na flat product 6 in. 150 mm or more inwidth and from 0.005 in. 0.13 mm to 0.188 in. 4.8 mm inthickness.3.3.
10、3 plate, na flat product more than 0.125 in. 3.2 mmin thickness.4. Classification4.1 The strip, sheet, or plate is to be furnished in five gradesas follows:4.1.1 Grade R60700Low oxygen zirconium.4.1.2 Grade R60702Unalloyed zirconium.4.1.3 Grade R60704Zirconium-tin.4.1.4 Grade R60705Zirconium-niobium
11、.4.1.5 Grade R60706Zirconium-niobium.5. Ordering Information5.1 Orders for material under this specification shouldinclude the following information, as applicable:5.1.1 Standard designation and year of issue,5.1.2 Quantity (weight or number of pieces),5.1.3 Lot definition for continuous anneal, if
12、applicable(3.2.1),5.1.4 Form (3.3) and dimensions,5.1.5 Grade (4.1),5.1.6 Metallurgical condition, if not in the recrystallizedannealed condition (6.3),1This specification is under the jurisdiction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direct responsibility ofS
13、ubcommittee B10.02 on Zirconium and Hafnium.Current edition approved Nov. 1, 2017. Published November 2017. Originallyapproved in 1971. Last previous edition approved in 2012 as B551/B551M 12.DOI: 10.1520/B0551_B0551M-12R17.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
14、cation SB-551 in Section II of that Code.3For 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 ASTM Inter
15、national, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,
16、Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15.1.7 Chemical analysis of elements not listed (7.1.4),5.1.8 Product analysis (7.1.3 and 7.3.1),5.1.9 Tensile test temperature (8.1),5.1.10 Material condition and finish (9.1 9.5),5.1.11 Wo
17、rkmanship and appearance (11.1 and 11.3),5.1.12 Purchaser inspection (15.1 and 15.2),5.1.13 Rejection and referee (16.2),5.1.14 Product marking, (18.1 and 18.1.1),5.1.15 Packaging and package marking (19.1),5.1.16 Additions to the specification and supplementaryrequirements, if required, and5.1.17 A
18、dditional requirements for explosion cladding, ifapplicable (Supplementary Requirements S.1).NOTE 1Atypical ordering description is as follows: 9000-lb 5000 kgzirconium sheet, 0.098 in. 2.5 mm by 12 in. 300 mm by 144 in.3.5 m, ASTM B551/B551M-07, Grade R60705.6. Materials and Manufacture6.1 Material
19、 covered by this specification shall be madefrom ingots that are produced by vacuum or plasma arcmelting, vacuum electron-beam melting, a combination ofthese three methods or other melting processes conventionallyused for reactive metals. All processes to be done in furnacesusually used for reactive
20、 metals.6.2 The various mill products covered by this specificationshall be formed with the conventional extrusion, forging, orrolling equipment normally found in primary ferrous andnonferrous plants.6.3 The strip, sheet, and plate shall be supplied in therecrystallized annealed condition unless oth
21、erwise specified inthe purchase order.7. Chemical Composition7.1 The material covered by this specification shall conformto the chemical composition requirements prescribed in Table1.7.1.1 The elements listed in Table 1 are intentional alloyadditions or elements which are inherent to the manufacture
22、 ofsponge, ingot or mill product.7.1.2 Elements intentionally added to the melt must beidentified, analyzed, and reported in the chemical analysis.7.1.3 Elements other than those listed in Table 1 are deemedto be capable of occurring in the grades listed in Table 1 by andonly by way of unregulated o
23、r unanalyzed scrap additions tothe ingot melt. Therefore, product analysis for elements notlisted in Table 1 shall not be required unless specified and shallbe considered to be in excess of the intent of this specification.7.1.4 When agreed upon by producer and purchaser andrequested by the purchase
24、r in his written purchase order,chemical analysis shall be completed for specific residualelements not listed in this specification.7.2 The manufacturers ingot analysis shall be consideredthe chemical analysis for strip, sheet, and plate, except forhydrogen and nitrogen, which shall be determined on
25、 thefinished product.7.2.1 The ingot shall be sampled in sufficient places alongthe side wall so that the top sample is within 5 in. 125 mm ofthe top face.Aminimum of three samples per ingot is required.7.2.2 These samples shall be analyzed for the alloying andimpurity elements given in Table 1.7.2.
26、3 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 7.2.1 to determine the composition, except forhydrogen and nitrogen, which shall be determined on thefinished product.
27、7.3 Check Analysis:7.3.1 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 the purpose of verifyingthe composition of a heat or lot or to determine variations in thecomposition within a heat or l
28、ot. Acceptance or rejection of alot of material may be made by the purchaser on the basis ofthis check analysis. When requested by the purchaser andstated in the purchase order, a product check analysis for anyelements listed in Table 1 shall be made on the finishedproduct.7.3.2 Check analysis limit
29、s shall be as specified in Table 2.These limits are the amounts an individual result for a givenelement may vary under or over the specified limits shown inTable 1.TABLE 1 Chemical RequirementsAElementComposition, %GradesR60700 R60702 R60704 R60705 R60706Zirconium + hafnium, min 99.2 99.2 97.5 95.5
30、95.5Hafnium, max 4.5 4.5 4.5 4.5 4.5Iron + chromium 0.2 max 0.2 max 0.2 to 0.4 0.2 max 0.2 maxTin . . 1.0to2.0 . .Hydrogen, max 0.005 0.005 0.005 0.005 0.005Nitrogen, max 0.025 0.025 0.025 0.025 0.025Carbon, max 0.05 0.05 0.05 0.05 0.05Niobium . . . . . . . 2.0 to 3.0 2.0 to 3.0Oxygen, max 0.10 0.16
31、 0.18 0.18 0.16ABy agreement between the purchaser and the manufacturer, analysis may be required and limits established for elements and compounds not specified in the table ofchemical composition (see 7.1.1).B551/B551M 12 (2017)27.3.3 Check analysis tolerances do not broaden the speci-fied heat an
32、alysis requirements but cover variations betweenlaboratories in the measurement of chemical content.7.3.4 The manufacturer shall not ship material that isoutside the limits specified in Table 1 for the applicable grade.8. Mechanical Properties8.1 The material, as represented by the test specimens, s
33、hallconform to the tensile properties prescribed in Table 3 for roomtemperature mechanical properties.8.2 For strip and sheet, the bend test specimen shall standbeing bent at ambient temperature through an angle of 105without fracture in the outside of the bent portion. The bendshall be made around
34、a mandrel having a radius equal to thatshown in Table 3 for the applicable grade. Bend testing shall beperformed in accordance with Test Methods E290.9. Condition and Finish9.1 Sheet, strip, or plate shall be furnished in one of thefollowing conditions as designated on the purchase order:Form Condit
35、ionStrip hot-rolledhot-rolled, annealedcold-rolledcold-rolled, annealedcold-rolled, annealed,followed by a final lightcold-rolled pass,generally on polished rollsSheet hot-rolledhot-rolled, annealedcold-rolled, annealedcold-rolled, annealed,followed by a final lightcold-rolled pass,generally on poli
36、shed rollsPlate hot-rolledhot-rolled, annealed9.2 Hot-rolled sheet, strip, or plate shall be furnished withone of the following finishes as designated in the purchaseorder:9.2.1 Not descaled,9.2.2 Mechanically descaled,9.2.3 Mechanically descaled and pickled,9.2.4 As-ground.9.3 Cold-rolled sheet or
37、strip shall be furnished with one ofthe following finishes as designated in the purchase order:9.3.1 Bright cold-rolled,9.3.2 Ground 32 in. 0.8 m rms or better, or9.3.3 Pickled.9.4 Hot-Rolled StripThe following types of edges can befurnished on hot-rolled strip when specified in the purchaseorder:9.
38、4.1 Mill edge,9.4.2 Split edge, or9.4.3 Sheared edge.9.5 Cold-Rolled StripA slit edge is normally furnished oncold-rolled strip. A machined edge is available for weldpreparation when specified in the purchase order.9.6 Sheet and PlateBoth hot- and cold-rolled sheet andplate are furnished with a shea
39、red edge.10. Permissible Variations in Dimensions and Weights10.1 ThicknessThe variations in thickness of strip, sheet,and plate are given in the following tables:10.1.1 Hot-rolled strip, Table 4.10.1.2 Cold-rolled strip, Table 5.10.1.3 Hot- and cold-rolled sheet, Table 6.10.1.4 Plate, Table 7.10.2
40、WidthThe variations in width are given in the fol-lowing tables:10.2.1 Hot-rolled strip, Table 8.10.2.2 Cold-rolled strip, Table 9.10.2.3 Hot- and cold-rolled sheet, Table 10.10.2.4 Plate, Table 11.10.3 LengthThe variations in length are given in thefollowing tables:10.3.1 Hot- and cold-rolled strip
41、, Table 12.10.3.2 Hot- and cold-rolled sheet, Table 13.10.3.3 Plate, Table 11.10.4 Crown TolerancesThe variations in crown tolerancesare given in the following tables:10.4.1 Hot-rolled strip, Table 14.TABLE 2 Permissible Variation in Check Analysis BetweenDifferent LaboratoriesElementPermissible Var
42、iation inProduct Analysis, %Hydrogen 0.002Nitrogen 0.01Carbon 0.01Hafnium 0.1Iron + chromium 0.025Tin 0.05Niobium 0.05Oxygen 0.02TABLE 3 Tensile RequirementsGradesR60700 R60702 R60704 R60705 R60706Tensile strength, min, ksi MPa . 55 380 60 415 80 550 74 510Yield strength, min, ksi MPa . 30 205 35 24
43、0 55 380 50 345Tensile strength, max, ksi MPa 55 380 . . . .Yield strength, max, ksi MPa 44 305 . . . .Elongation in 2 in. or 50 mm, min, %A20 16 14 16 14Bend test radiusB5T 5T 5T 3T 2.5TAWhen a sub-size specimen is used, the gage length shall be as specified in Test Methods E8/E8M for that specimen
44、.BT equals the thickness of the bend test specimen. Bend tests are not applicable to material over 0.187 in. 4.8 mm in thickness.B551/B551M 12 (2017)310.4.2 Cold-rolled strip, Table 15.10.4.3 Hot-rolled sheet, Table 16.10.4.4 Cold-rolled sheet, Table 17.10.5 Camber TolerancesThe variations in camber
45、 toler-ances are given in the following tables.10.5.1 Hot- and cold-rolled strip, Table 18.10.5.2 Hot- and cold-rolled sheet, Table 19.10.5.3 Plate, Table 20.10.6 DiameterThe variation in diameter tolerance forcircular plates is given in Table 21.10.7 FlatnessThe permissible variation from a flat su
46、rfacefor plate is given in Table 22.10.8 WeightThe actual shipping weight of any one item ofan ordered thickness and width in any finish may exceedestimated weight by as much as 10 %.11. Workmanship and Appearance11.1 Cracks, seams, slivers, blisters, burrs, and other inju-rious imperfections shall
47、not exceed standards of acceptabilityagreed upon by the manufacturer and the purchaser.11.2 The finished strip, sheet, or plate shall be visibly freeof oxide, grease, oil, residual lubricants, and other extraneousmaterials.11.3 Methods of testing for these defects and standards ofacceptability shall
48、 be as agreed upon between the manufacturerand the purchaser.11.4 The manufacturer shall be permitted to remove surfaceimperfections provided such removal does not reduce thedimensions below the minimum permitted by the tolerances forthat dimension.12. Significance of Numerical Limits12.1 For the pu
49、rpose of determining compliance with thespecified limits for requirements of the properties listed in thefollowing table, an observed value or a calculated value shallbe rounded as indicated in accordance with the roundingmethods of Practice E29.PropertyRounded Unit for Observed orCalculated ValueChemical composition and tolerances(when expressed as decimals)nearest unit in the last right-hand placeof figures of the specified limitTensile strength and yi
