1、Designation: B 551/B 551M 07Standard Specification forZirconium and Zirconium Alloy Strip, Sheet, and Plate1This standard is issued under the fixed designation B 551/B 551M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year
2、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 specification2covers five grades of zirconium strip,sheet, and plate.1.2 Unless a single unit is used, for ex
3、ample 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-pound values.1.
4、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 and health pr
5、acticesand determine the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:3E8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 290 Test Methods for Be
6、nd Testing of Material forDuctility3. 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 samesize, shape, condition, and finish produced from the same ingotor powder blen
7、d 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 for final batch anneal.3.3 Forms:3.3.1 strip, na flat produ
8、ct, 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.3.3.3 plate, na flat product more than 0.188 in. 4.8 mmin thickn
9、ess.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.4.1.5 Grade R60706Zirconium-niobium.5. Ordering Information
10、5.1 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 applicable(3.2.1),5.1.4 Form (3.3) and dimensions,5.1.5 Grad
11、e (4.1),5.1.6 Metallurgical condition, if not in the recrystallizedannealed condition (6.3),5.1.7 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),1This specification is under
12、 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 June 1, 2007. Published July 2007. Originally approvedin 1971. Last previous edition approved in 2004 as B 551/
13、B 551M 04e1.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-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 informati
14、on, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.1.11 Workmanship and appearance (11.1 and 11.3),5.1.12 Purchaser inspection (15.1 and 15.2),5.1.13 Rejection and re
15、feree (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 Additional requirements for explosion cladding, ifapplicable (Supplementary Requirements S.1).NOTE 1A typical
16、 ordering description is as follows: 9000-lb 5000kg zirconium sheet, 0.098 in. 2.5 mm by 12 in. 300 mm by 144 in.3.5 m, ASTM B 551/B 550M-07, Grade R60705.6. Materials and Manufacture6.1 Material covered by this specification shall be madefrom ingots that are produced by vacuum or plasma arcmelting,
17、 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 metals.6.2 The various mill products covered by this specificationshall be formed with the conventional
18、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 otherwise specified inthe purchase order.7. Chemical Composition7.1 The material covered by this specificati
19、on 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 ofsponge, ingot or mill product.7.1.2 Elements intentionally added to the melt must beidentified, analyz
20、ed, 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 or unanalyzed scrap additions tothe ingot melt. Therefore, product analysis for elements notlisted in Tabl
21、e 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 purchaser in his written purchase order,chemical analysis shall be completed for specific residualelements not li
22、sted 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 thefinished product.7.2.1 The ingot shall be sampled in sufficient places alongthe side wall so that the
23、 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 1.7.2.3 Alternatively, the manufacturer may sample an inter-mediate or final size during processing with the sa
24、me 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.7.3 Check Analysis:7.3.1 Check analysis is an analysis made by the purchaser orthe manufacturer of the me
25、tal 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 lot. Acceptance or rejection of alot of material may be made by the purchaser on the basis ofthis check an
26、alysis. 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 limits shall be as specified in Table 2.These limits are the amounts an individual result for a givenelement m
27、ay vary under or over the specified limits shown inTable 1.7.3.3 Check analysis tolerances do not broaden the speci-fied heat analysis requirements but cover variations betweenlaboratories in the measurement of chemical content.7.3.4 The manufacturer shall not ship material that isoutside the limits
28、 specified in Table 1 for the applicable grade.TABLE 1 Chemical RequirementsAElementComposition, %GradesR60700 R60702 R60704 R60705 R60706Zirconium + hafnium, min 99.2 99.2 97.5 95.5 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 . .Hyd
29、rogen, 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 0.18 0.18 0.16ABy agreement between the purchaser and the manufacturer, analysis may be required and limits establis
30、hed for elements and compounds not specified in the tableof chemical composition (see 7.1.1).B 551/B 551M 0728. Mechanical Properties8.1 The material, as represented by the test specimens, shallconform to the tensile properties prescribed in Table 3 for roomtemperature mechanical properties.8.2 For
31、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 a mandrel having a radius equal to thatshown in Table 3 for the applicable grade. Bend testing shall beperform
32、ed in accordance with Test Methods E 290.9. Condition and Finish9.1 Sheet, strip, or plate shall be furnished in one of thefollowing conditions as designated on the purchase order:Form ConditionStrip hot-rolledhot-rolled, annealedcold-rolledcold-rolled, annealedcold-rolled, annealed,followed by a fi
33、nal lightcold-rolled pass,generally on polished rollsSheet hot-rolledhot-rolled, annealedcold-rolled, annealedcold-rolled, annealed,followed by a final lightcold-rolled pass,generally on polished rollsPlate hot-rolledhot-rolled, annealed9.2 Hot-rolled sheet, strip, or plate shall be furnished withon
34、e 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 strip shall be furnished with one ofthe following finishes as designated in the purchase order:9.3.1 Bright c
35、old-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:9.4.1 Mill edge,9.4.2 Split edge, or9.4.3 Sheared edge.9.5 Cold-Rolled StripA slit edge is normally furnished o
36、ncold-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 sheared edge.10. Permissible Variations in Dimensions and Weights10.1 ThicknessThe variations in thickness of str
37、ip, 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 WidthThe variations in width are given in the fol-lowing tables:10.2.1 Hot-rolled strip, Table 8.10.2.2 Cold-
38、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, Table 12.10.3.2 Hot- and cold-rolled sheet, Table 13.10.3.3 Plate, Table 11.10.4 Crown TolerancesThe variat
39、ions in crown tolerancesare given in the following tables:10.4.1 Hot-rolled strip, Table 14.10.4.2 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 toler-ances are given in the following tables.10.5.1 Hot-
40、 and cold-rolled strip, Table 18.10.5.2 Hot- and cold-rolled sheet, Table 19.TABLE 2 Permissible Variation in Check Analysis BetweenDifferent LaboratoriesElementPermissible Variation inProduct Analysis, %Hydrogen 0.002Nitrogen 0.01Carbon 0.01Hafnium 0.1Iron + chromium 0.025Tin 0.05Niobium 0.05Oxygen
41、 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 35 240 55 380 50 345Tensile strength, max, ksi MPa 55 380 . . . .Yield strength, max, ksi MPa 44 305 . . . .Elongation in 2 in. o
42、r 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 E8for that specimen.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.
43、B 551/B 551M 07310.5.3 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 surfacefor plate is given in Table 22.10.8 WeightThe actual shipping weight of any one item ofan ordered thickness and wi
44、dth 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 not exceed standards of acceptabilityagreed upon by the manufacturer and the purchaser.11.2 The finished strip, sheet,
45、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 be as agreed upon between the manufacturerand the purchaser.11.4 The manufacturer shall be permitted to remove surface
46、imperfections provided such removal does not reduce thedimensions below the minimum permitted by the tolerances forthat dimension.12. Significance of Numerical Limits12.1 For the purpose of determining compliance with thespecified limits for requirements of the properties listed in thefollowing tabl
47、e, an observed value or a calculated value shallbe rounded as indicated in accordance with the roundingmethods of Practice E 29.PropertyRounded Unit for Observed orCalculated ValueChemical composition and tolerances(when expressed as decimals)nearest unit in the last right-hand placeof figures of th
48、e specified limitTensile strength and yield strength nearest 1000 psi 10 MPaElongation nearest 1 %13. Number of Tests and Retests13.1 One longitudinal tension shall be made from each lot(see 14.2).13.2 One chemistry test for hydrogen and nitrogen contentshall be made from each lot of finished produc
49、t (see 14.1).13.3 Two bend tests, one in the longitudinal and one in thetransverse direction, shall be made from each lot (see 8.2).13.4 Retests:13.4.1 If any sample or specimen exhibits obvious surfacecontamination or improper preparation disqualifying it as atruly representative sample, it shall be discarded and a newsample or specimen substituted.13.4.2 If the results of any chemical or mechanical propertytest lot are not in conformance with the requirements of thisspecification, the lot may be r
