1、Designation: B670 07 (Reapproved 2013)Standard Specification forPrecipitation-Hardening Nickel Alloy (UNS N07718) Plate,Sheet, and Strip for High-Temperature Service1This standard is issued under the fixed designation B670; the number immediately following the designation indicates the year oforigin
2、al adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defe
3、nse.1. Scope1.1 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 standard. The values given in parentheses are mathematicalconversions to SI units t
4、hat are provided for information onlyand are not considered standard.1.3 This standard does not purport 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 app
5、ropriateMaterial Safety Data Sheet (MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafety and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B637 Specification for Precipitati
6、on-Hardening and ColdWorked Nickel Alloy Bars, Forgings, and Forging Stockfor Moderate or High Temperature ServiceB906 Specification for General Requirements for Flat-Rolled Nickel and Nickel Alloys Plate, Sheet, and StripE29 Practice for Using Significant Digits in Test Data toDetermine Conformance
7、 with SpecificationsE139 Test Methods for Conducting Creep, Creep-Rupture,and Stress-Rupture Tests of Metallic Materials3. 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 c
8、on-form to the applicable requirements of Specification B906unless otherwise provided herein.5. Ordering Information5.1 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
9、 limited to, the following:5.1.1 AlloyName or UNS number (see Table 2).5.1.2 ASTM designation, including year of issue.5.1.3 ConditionSee 7.1 and Appendix X1.5.1.4 FinishSpecification B906 or Appendix X1.5.1.5 DimensionsThickness, width, and length.5.1.6 Quantity:5.1.7 Optional Requirements:5.1.7.1
10、Sheet and StripWhether to be furnished in coil, incut straight lengths, or in random straight lengths.5.1.7.2 StripWhether 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 an
11、d 8.3.2).5.1.8 Fabrication DetailsNot mandatory but helpful tothe manufacturer:5.1.8.1 Welding or BrazingProcess to be employed.5.1.8.2 PlateWhether material is to be hot-formed.5.1.9 CertificationState if certification or a report of testresults is required (see Specification B906).5.1.10 Samples f
12、or 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 ofmanufacture, the purchase order must so state indicating whichtests or inspections are to be witnessed (see Specific
13、ationB906).1This specification is under the jurisdiction 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 Feb. 1, 2013. Published February 2013. Originallyapproved in 197
14、2. Last previous edition approved in 2007 as B670 07. DOI:10.1520/B0670-07R13.* New designation established in accordance with ASTM E527 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
15、at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16. Chemical Composition6.1 The material shall con
16、form to the requirements as tochemical composition prescribed in Table 2.6.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the product (check)analysis variations prescribed in Specification B906.7. Mechanical and Other Requirements7.1 Tensile PropertiesThe
17、 material after precipitationhardening shall conform to the tensile properties prescribed inTable 3.7.2 Stress-Rupture PropertiesThe material after precipita-tion hardening shall conform to the stress-rupture propertiesprescribed in Table 4.8. Dimensions and Permissible Variations8.1 Thickness and W
18、eight:8.1.1 PlateThe permissible variation under the specifiedthickness and permissible excess in overweight shall notexceed the amounts prescribed in Specification B906,Table A3.1.8.1.1.1 For use with Specification B906, Table A3.1, , plateshall be assumed to weigh 0.296 lb/in.3(8.19 g/cm3).8.1.2 S
19、heet and StripThe permissible variations in thick-ness of sheet and strip shall be as prescribed in SpecificationB906, Table 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
20、any place on the strip under 1 in. in width.8.2 Width or Diameter:8.2.1 PlateThe permissible variations in width of rectan-gular plates and diameter of circular plates shall be asprescribed in Specification B906, Table A3.4 and Table A3.5.8.2.2 Sheet and StripThe permissible variations in widthfor s
21、heet and strip shall be as prescribed in Specification B906,Table A3.6.8.3 Length:8.3.1 Sheet and strip of all sizes may 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
22、be as prescribed in Specification B906, Table A3.7.8.4 Straightness:8.4.1 The edgewise curvature (depth of chord) of flat sheet,strip, and plate shall not exceed 0.05 in. multiplied by theTABLE 1 Product DescriptionProduct Thickness, in. (mm) WidthHot-rolled plateA 316 to 214 (4.8 to 57.2) (B906,Tab
23、le A3.1)B906, Tables A3.2and A3.5BCold-rolled sheetC0.010 to 0.250 (0.25 to 6.4), incl(B906, Table A3.3)B906, Table A3.60.005 to 0.250 (0.13 to 6.4), incl(B906, Table A3.3)Cold-rolled stripC. B906, Table A3.6AMaterial316 to14 in. (4.8 to 6.4 mm), incl, in thickness may be furnished as sheetor plate
24、provided the material meets the specification requirements for thecondition ordered.BHot-rolled plate, in widths 10 in. (250 mm) and under, may be furnished ashot-finished rectangles with sheared or cut edges in accordance with SpecificationB637, UNS N07718, provided the mechanical property requirem
25、ents of thisspecification are met.CMaterial under 48 in. (1219 mm) in width may be furnished as sheet or stripprovided the material meets the specification requirements for the conditionordered.TABLE 2 Chemical CompositionElement Composition,%Carbon 0.08 maxManganese 0.35 maxSilicon 0.35 maxPhosphor
26、us 0.015 maxSulfur 0.015 maxChromium 17.0 to 21.0CobaltA1.0 maxMolybdenum 2.80 to 3.30Columbium (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.T
27、ABLE 3 Tensile Properties for Plate, Sheet, and StripANominal Thickness,in. (mm)TensileStrength 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)
28、10AMaterial shall be supplied in the annealed condition (temper). The manufacturershall 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 25F (7
29、18 14C),hold at temperature for 8 h, furnace cool to 1150 25F (621 14C), hold 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
30、. or 50mm (or 4D),min, %N07718Up to 0.015 (0.38), incl 95 (655) 23 .Over 0.015 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 manufacturershall demonstrate that annealed material is capab
31、le of meeting the propertiesprescribed in Table 4 after precipitation heat 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 e
32、longation require-ments shall be as specified in Table 4.Testing may also be 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,thereaf
33、ter, the stress shall be increased in increments of 5000 psi (34.5 MPa).Time to rupture and elongation requirements shall be as specified in Table 4.B670 07 (2013)2length of the product in feet (0.04 mm multiplied by the lengthof the product in centimetres).8.4.2 Straightness for coiled strip materi
34、al is subject toagreement between the manufacturer and the purchaser.8.5 Edges:8.5.1 When finished edges of strip are specified in thecontract or purchase order, the following descriptions shallapply:8.5.1.1 Square-edge strip shall be supplied with finishededges, with sharp, square corners, and with
35、out bevel orrounding.8.5.1.2 Round-edge strip shall be supplied with finishededges, semicircular in form, and the diameter 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 a
36、s thoseresulting from slitting or shearing will be acceptable.8.5.1.4 Sheet shall have sheared or slit edges.8.5.1.5 Plate 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 adjace
37、nt sides shall be 90 6 0.15 (116 in. in 24in.) (1.6 mm in 610 mm).8.7 FlatnessStandard flatness tolerances for plate shallconform to the requirements prescribed in Table 5. “Speciallyflattened” plate when so specified, shall have permissiblevariations in flatness as agreed upon between the manufactu
38、rerand the purchaser.9. Sampling9.1 LotDefinition:9.1.1 Where material cannot be identified by heat, a lot shallconsist 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
39、 Tests10.1 Stress RuptureOne test per lot.11. Specimen Preparation11.1 Stress-rupture specimens shall be the same as tensionspecimens except modified as necessary for stress-rupturetesting in accordance with Test Methods E139.12. Test Methods12.1 The stress rupture properties of the material as enu-
40、merated in this specification shall be determined, in case ofdisagreement, in accordance with the following methods:Test ASTM DesignationStress rupture E13912.2 For purposes of determining compliance with thespecified limits for requirements of the properties listed in thefollowing table and this sp
41、ecification, an observed value or acalculated value shall be rounded as indicated in accordancewith the rounding method of Recommended Practice E29referenced in Specification B906.TestRounded Unit for Observedor Calculated ValueRupture life nearest 1 h13. Product Marking13.1 Each plate, sheet, or st
42、rip shall be marked on one facewith the specification number, alloy, condition (temper), heatTABLE 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 l
43、onger dimension is under 36 in.(914 mm) the permissible 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 deviat
44、ion from a flat surface does not customarily exceed 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)
45、,excl84 to 96(2130 to2440),excl96 to 108(2440 to2740),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 1
46、18 118 118 13834 to 1, excl1291658583413161516 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
47、 44.412.7 to 19.0, excl 12.7 14.3 15.9 15.9 20.6 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 22.2B670 07 (2013)3number, manufacturers identific
48、ation, 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 specification
49、number, alloy, size, consignor andconsignee address, contract or order number, and such otherinformation as may be defined 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, o
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