1、Designation: B 670 07Standard Specification forPrecipitation-Hardening Nickel Alloy (UNS N07718) Plate,Sheet, and Strip for High-Temperature Service1This standard is issued under the fixed designation B 670; the number immediately following the designation indicates the year oforiginal adoption or,
2、in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1
3、 This specification covers rolled precipitation hardenablenickel alloy (N07718)* plate, sheet, and strip in the annealedcondition (temper).1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.3 This standard does not p
4、urport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateMaterial Safety Data Sheet (MSDS) for this product/materialas provided by the manufacture
5、r, to establish appropriatesafety and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B 637 Specification for Precipitation-Hardening Nickel Al-loy Bars, Forgings, and Forging Stock for High-Temperature ServiceB 906 S
6、pecification for General Requirements for Flat-Rolled Nickel and Nickel Alloys Plate, Sheet, and StripE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 139 Test Methods for Conducting Creep, Creep-Rupture,and Stress-Rupture Tests of Metallic Material
7、s3. Terminology3.1 Description of Terms Specific to This StandardTheterms given in Table 1 shall apply.4. General Requirements4.1 Material furnished under this specification shall con-form to the applicable requirements of Specification B 906unless otherwise provided herein.5. Ordering Information5.
8、1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered to thisspecification. Examples of such requirements include, but arenot limited to, the following:5.1.1 AlloyName or UNS number (see Table 2).5.1.2 ASTM designation, including year of issue
9、.5.1.3 ConditionSee 7.1 and Appendix X1.5.1.4 FinishSpecification B 906 or Appendix X1.5.1.5 DimensionsThickness, width, and length.5.1.6 Quantity:5.1.7 Optional Requirements:5.1.7.1 Sheet and StripWhether to be furnished in coil, incut straight lengths, or in random straight lengths.5.1.7.2 StripWh
10、ether to be furnished with commercial slitedge, square edge, or round edge.5.1.7.3 PlateWhether to be furnished specially flattened(see 8.7); also how plate is to be cut (see 8.2.1 and 8.3.2).5.1.8 Fabrication DetailsNot mandatory but helpful tothe manufacturer:1This specification is under the juris
11、diction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Nov. 1, 2007. Published December 2007. Originallyapproved in 1972. Last previous edition approved in 2002 as B 67
12、0 02.* New designation established in accordance with ASTM E 527 and SAE J1086,Practice for Numbering Metals and Alloys (UNS).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information,
13、 refer to the standards Document Summary page onthe ASTM website.TABLE 1 Product DescriptionProduct Thickness, in. (mm) WidthHot-rolled plateA 316 to 214 (4.8 to 57.2) (B 906,Table A3.1)B 906, Tables A3.2and A3.5BCold-rolled sheetC0.010 to 0.250 (0.25 to 6.4), incl(B 906, Table A3.3)B 906, Table A3.
14、60.005 to 0.250 (0.13 to 6.4), incl(B 906, Table A3.3)Cold-rolled stripC. B 906, Table A3.6AMaterial316 to14 in. (4.8 to 6.4 mm), incl, in thickness may be furnished assheet or plate provided the material meets the specification requirements for thecondition ordered.BHot-rolled plate, in widths 10 i
15、n. (250 mm) and under, may be furnished ashot-finished rectangles with sheared or cut edges in accordance with SpecificationB 637, UNS N07718, provided the mechanical property requirements of thisspecification are met.CMaterial under 48 in. (1219 mm) in width may be furnished as sheet or stripprovid
16、ed the material meets the specification requirements for the conditionordered.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.1.8.1 Welding or BrazingProcess to be employed.5.1.8.2 PlateWhether material is to be hot-formed.5.1.9 Ce
17、rtificationState if certification or a report of testresults is required (see Specification B 906).5.1.10 Samples for Product (Check) AnalysisWhethersamples should be furnished (see 6.2).5.1.11 Purchaser InspectionIf the purchaser wishes towitness the tests or inspection of material at the place ofm
18、anufacture, the purchase order must so state indicating whichtests or inspections are to be witnessed (see SpecificationB 906).6. Chemical Composition6.1 The material shall conform to the requirements as tochemical composition prescribed in Table 2.6.2 If a product (check) analysis is performed by t
19、hepurchaser, the material shall conform to the product (check)analysis variations prescribed in Specification B 906.7. Mechanical and Other Requirements7.1 Tensile PropertiesThe material after precipitationhardening shall conform to the tensile properties prescribed inTable 3.7.2 Stress-Rupture Prop
20、ertiesThe material after precipi-tation hardening shall conform to the stress-rupture propertiesprescribed in Table 4.8. Dimensions and Permissible Variations8.1 Thickness and Weight:8.1.1 PlateThe permissible variation under the specifiedthickness and permissible excess in overweight shall notexcee
21、d the amounts prescribed in Specification B 906,Table A3.1.8.1.1.1 For use with Specification B 906, Table A3.1, , plateshall be assumed to weigh 0.296 lb/in.3(8.19 g/cm3).8.1.2 Sheet and StripThe permissible variations in thick-ness of sheet and strip shall be as prescribed in SpecificationB 906, T
22、able A3.3. The thickness of strip and sheet shall bemeasured with the micrometer spindle38 in. (9.5 mm) or morefrom either edge for material 1 in. (25.4 mm) or over in widthand at any place on the strip under 1 in. in width.8.2 Width or Diameter:8.2.1 PlateThe permissible variations in width of rect
23、an-gular plates and diameter of circular plates shall be asprescribed in Specification B 906, Table A3.4 and Table A3.5.8.2.2 Sheet and StripThe permissible variations in widthfor sheet and strip shall be as prescribed in Specification B 906,Table A3.6.8.3 Length:8.3.1 Sheet and strip of all sizes m
24、ay be ordered to cutlengths, in which case a variation of18 in. (3.2 mm) over thespecified length shall be permitted.8.3.2 Permissible variations in length of rectangular plateshall be as prescribed in Specification B 906, Table A3.7.8.4 Straightness:8.4.1 The edgewise curvature (depth of chord) of
25、flat sheet,strip, and plate shall not exceed 0.05 in. multiplied by thelength of the product in feet (0.04 mm multiplied by the lengthof the product in centimetres).8.4.2 Straightness for coiled strip material is subject toagreement between the manufacturer and the purchaser.8.5 Edges:8.5.1 When fin
26、ished edges of strip are specified in thecontract or purchase order, the following descriptions shallapply:TABLE 2 Chemical CompositionElement Composition,%Carbon 0.08 maxManganese 0.35 maxSilicon 0.35 maxPhosphorus 0.015 maxSulfur 0.015 maxChromium 17.0 to 21.0CobaltA1.0 maxMolybdenum 2.80 to 3.30C
27、olumbium (Nb) + tantalum 4.75 to 5.50Titanium 0.65 to 1.15Aluminum 0.20 to 0.80IronBremainderCopper 0.30 maxNickel 50.0 to 55.0Boron 0.006 maxAIf determined.BIron shall be determined arithmetically by difference.TABLE 3 Tensile Properties for Plate, Sheet, and StripANominal Thickness,in. (mm)Tensile
28、Strength min,ksi (MPa)Yield Strength(0.2 % offset),min, ksi(MPa)Elongation in 2in.or50mm(or 4D),min, %N07718Up to 1.0 (25.4), incl 180 (1241) 150 (1034) 12Over 1.0 to 2.25(25.4 to 57.2), incl180 (1241) 150 (1034) 10AMaterial shall be supplied in the annealed condition (temper). The manufac-turer sha
29、ll demonstrate that annealed material is capable of meeting the propertiesprescribed in Table 3 after precipitation heat treatment. For UNS N07718,precipitation heat treatment shall consist of heating to 1325 6 25F (718 6 14C),hold at temperature for 8 h, furnace cool to 1150 6 25F (621 6 14C), hold
30、 untiltotal precipitation heat treatment time has reached 18 h, and then air cool.TABLE 4 Stress-Rupture Test at 1200F (649C) for Plate, Sheet,and StripANominal Thickness,in. (mm)Stress,Bksi(MPa)Life, min,hElongation in2 in. or 50mm (or 4D),min, %N07718Up to 0.015 (0.38), incl 95 (655) 23 .Over 0.01
31、5 to 0.025 (0.38 to0.64), incl95 (655) 23 4Over 0.025 to 1.5 (0.64 to38.1), incl100 (690) 23 4AMaterial shall be supplied in the annealed condition (temper). The manufac-turer shall demonstrate that annealed material is capable of meeting the propertiesprescribed in Table 4 after precipitation heat
32、treatment. Precipitation heat treat-ment is as specified in footnote A of Table 3.BTesting may be conducted at a stress higher than that specified but stress shallnot be changed while test is in process. Time to rupture and elongation require-ments shall be as specified in Table 4.Testing may also b
33、e conducted using incremental loading. In such case, thestress specified in Table 4 shall be maintained to rupture or for 48 h, whicheveroccurs first. After the 48 h and at intervals of 8 to 16 h, preferably 8 to 10 h,thereafter, the stress shall be increased in increments of 5000 psi (34.5 MPa).Tim
34、e to rupture and elongation requirements shall be as specified in Table 4.B6700728.5.1.1 Square-edge strip shall be supplied with finishededges, with sharp, square corners, and without bevel orrounding.8.5.1.2 Round-edge strip shall be supplied with finishededges, semicircular in form, and the diame
35、ter of the circleforming the edge being equal to the strip thickness.8.5.1.3 When no description of any required form of stripedge is given, it shall be understood that edges such as thoseresulting from slitting or shearing will be acceptable.8.5.1.4 Sheet shall have sheared or slit edges.8.5.1.5 Pl
36、ate shall have sheared or cut (machined, abrasive-cut, powder-cut, or inert-arc-cut) edges, as specified.8.6 Squareness (Sheet)For sheets of all thicknesses, theangle between adjacent sides shall be 90 6 0.15 (116 in. in 24in.) (1.6 mm in 610 mm).8.7 FlatnessStandard flatness tolerances for plate sh
37、allconform to the requirements prescribed in Table 5. “Speciallyflattened” plate when so specified, shall have permissiblevariations in flatness as agreed upon between the manufacturerand the purchaser.9. Sampling9.1 LotDefinition:9.1.1 Where material cannot be identified by heat, a lot shallconsist
38、 of not more than 500 lb (227 kg) of material in the samethickness and condition, except for plates weighing over 500lb, in which case only one specimen shall be taken.10. Number of Tests10.1 Stress RuptureOne test per lot.11. Specimen Preparation11.1 Stress-rupture specimens shall be the same as te
39、nsionspecimens except modified as necessary for stress-rupturetesting in accordance with Test Methods E 139.12. Test Methods12.1 The stress rupture properties of the material as enu-merated in this specification shall be determined, in case ofdisagreement, in accordance with the following methods:Te
40、st ASTM DesignationStress rupture E 13912.2 For purposes of determining compliance with thespecified limits for requirements of the properties listed in thefollowing table and this specification, an observed value or acalculated value shall be rounded as indicated in accordancewith the rounding meth
41、od of Recommended Practice E29referenced in Specification B 906.TestRounded Unit for Observedor Calculated ValueRupture life nearest 1 h13. Product Marking13.1 Each plate, sheet, or strip shall be marked on one facewith the specification number, alloy, condition (temper), heatnumber, manufacturers i
42、dentification, and size. The markingsshall not have a deleterious effect on the material or itsperformance and shall be sufficiently stable to withstandnormal handling.13.2 When applicable, each bundle or shipping containershall be marked with the name of the material, condition(temper), this specif
43、ication number, alloy, size, consignor andTABLE 5 Permissible Variations from Flatness of Rectangular, Circular, and Sketch PlatesNOTE 1Permissible variations apply to plates up to 12 ft (3.66 m) in length, or to any 12 ft of longer plates. If the longer dimension is under 36 in.(914 mm) the permiss
44、ible variation is not greater than14 in. (6.4 mm).NOTE 2The shorter dimension specified is considered the width, and the permissible variation in flatness across the width does not exceed the tabularamount for that dimension.NOTE 3The maximum deviation from a flat surface does not customarily exceed
45、 the tabular tolerance for the longer dimension specified.Specified ThicknessPermissible Variations from a Flat Surface for Thickness and Widths Given, in. (mm)To 48(1220),excl48 to 60(1220 to1520),excl60 to 72(1520 to1830),excl72 to 84(1830 to2130),excl84 to 96(2130 to2440),excl96 to 108(2440 to274
46、0),excl108 to 120(2740 to3050),excl120 to 144(3050 to3660),excl144(3660)and overInches316 to14 , excl34 1116 114 138 158 158 . . .14 to38 , excl1116341516 118 138 1716 1916 178 .38 to12 , excl129161116341516 118 114 1716 13412 to34 , excl1291658581316 118 118 118 13834 to 1, excl1291658583413161516
47、11181 to 2, excl1291691691611161116111634 12to214 , incl145163871612916583478Millimetres4.8 to 6.4, excl 19.0 27.0 31.8 34.9 41.3 41.3 . . .6.4 to 9.5, excl 17.5 19.0 23.8 28.6 34.9 36.5 39.7 47.6 .9.5 to 12.7 excl 12.7 14.3 17.5 19.0 23.8 28.6 31.8 36.5 44.412.7 to 19.0, excl 12.7 14.3 15.9 15.9 20
48、.6 28.6 28.6 28.6 34.919.0 to 25.4, excl 12.7 14.3 15.9 15.9 19.0 20.6 23.8 25.4 28.625.4 to 50.8, excl 12.7 14.3 14.3 14.3 17.5 17.5 17.5 19.0 25.450.8 to 57.2, incl 6.4 7.9 9.5 11.1 12.7 14.3 15.9 19.0 22.2B670073consignee address, contract or order number, and such otherinformation as may be defi
49、ned in the contract or order.14. Keywords14.1 N07718; plate; sheet; stripAPPENDIX(Nonmandatory Information)X1. CONDITIONS AND FINISHES NORMALLY SUPPLIEDX1.1 This appendix lists the conditions and finishes inwhich plate, sheet, and strip are normally supplied.X1.2 PlateHot-rolled, annealed, and descaled.X1.3 SheetCold-rolled, annealed, descaled, or bright an-nealed.X1.4 StripCold-rolled, annealed, descaled, or brightannealed.ASTM International takes no position respecting t
