1、Designation: B 670 02Standard 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 for this product/material as pro-vided by the manufacturer, to
5、 establish appropriate safety andhealth practices, and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:B 637 Specification for Precipitation-Hardening Nickel Al-loy Bars, Forgings, and Forging Stock for High-Temperature Service2B 880 Specif
6、ication for General Requirements for ChemicalCheck Analysis Limits for Nickel, Nickel Alloys andCobalt Alloys3E8 Test Methods for Tension Testing of Metallic Materials4E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications5E 139 Test Methods for Conducting
7、 Creep, Creep-Rupture,and Stress-Rupture Tests of Metallic Materials4E 354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron,Nickel, and Cobalt Alloys3E 1473 Test Methods for Chemical Analysis of Nickel,Cobalt, and High-Temperature Alloys33. Termino
8、logy3.1 Description of Terms Specific to This StandardTheterms given in Table 1 shall apply.4. Ordering Information4.1 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:4.1.1 AlloyName or UNS number (see Table 2).4.1.2 ASTM designation, including year of issue.4.1.3 ConditionSee 6.1 and Appendix X1.4.1.4 FinishAppendix X1.4.1.5 DimensionsThickness, width, and length.4.1.6 Quantity:4.1.7 Optional Requirements:4.1.7.1 Sheet and StripWhether
10、to be furnished in coil, incut straight lengths, or in random straight lengths.4.1.7.2 StripWhether to be furnished with commercial slitedge, square edge, or round edge.4.1.7.3 PlateWhether to be furnished specially flattened(see 7.7.1); also how plate is to be cut (see 7.2.1 and 7.3.2).4.1.8 Fabric
11、ation DetailsNot mandatory but helpful tothe manufacturer:4.1.8.1 Welding or BrazingProcess to be employed.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
12、Alloys.Current edition approved May 10, 2002. Published July 2002. Originallypublished as A 670 72. Redesignated B 670 in 1978. Last previous editionB 670 95.* New designation established in accordance with ASTM E 527 and SAE J1086,Practice for Numbering Metals and Alloys (UNS).2Annual Book of ASTM
13、Standards, Vol 02.04.3Annual Book of ASTM Standards, Vol 03.05.4Annual Book of ASTM Standards, Vol 03.01.5Annual Book of ASTM Standards, Vol 14.02.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.8.2 PlateWhether material is to be
14、 hot-formed.4.1.9 CertificationState if certification or a report of testresults is required (see Section 15).4.1.10 Samples for Product (Check) AnalysisWhethersamples should be furnished (see 5.2).4.1.11 Purchaser InspectionIf the purchaser wishes towitness the tests or inspection of material at th
15、e place ofmanufacture, the purchase order must so state indicating whichtests or inspections are to be witnessed (see Section 13).5. Chemical Composition5.1 The material shall conform to the requirements as tochemical composition prescribed in Table 2.5.2 If a product (check) analysis is performed b
16、y thepurchaser, the material shall conform to the product (check)analysis variations prescribed in Specification B 880.6. Mechanical and Other Requirements6.1 Tensile PropertiesThe material after precipitationhardening shall conform to the tensile properties prescribed inTable 3.6.2 Stress-Rupture P
17、ropertiesThe material after precipi-tation hardening shall conform to the stress-rupture propertiesprescribed in Table 4.7. Dimensions and Permissible Variations7.1 Thickness and Weight:7.1.1 PlateThe permissible variation under the specifiedthickness and permissible excess in overweight shall notex
18、ceed the amounts prescribed in Table 5.7.1.1.1 For use with Table 5, plate shall be assumed toweigh 0.296 lb/in.3(8.19 g/cm3).7.1.2 Sheet and StripThe permissible variations in thick-ness of sheet and strip shall be as prescribed in Table 6. Thethickness of strip and sheet shall be measured with the
19、micrometer spindle38 in. (9.5 mm) or more from either edgefor material 1 in. (25.4 mm) or over in width and at any placeon the strip under 1 in. in width.7.2 Width or Diameter:7.2.1 PlateThe permissible variations in width of rectan-gular plates and diameter of circular plates shall be asprescribed
20、in Table 7 and Table 8.7.2.2 Sheet and StripThe permissible variations in widthfor sheet and strip shall be as prescribed in Table 9.7.3 Length:7.3.1 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.7.3
21、.2 Permissible variations in length of rectangular plateshall be as prescribed in Table 10.7.4 Straightness:7.4.1 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 p
22、lateA 316 to 214 (4.8 to 57.2) (Table 5) Tables 7Band 8Cold-rolled sheetC0.010 to 0.250 (0.25 to 6.4), incl(Table 6)Table 90.005 to 0.250 (0.13 to 6.4), incl(Table 6)Cold-rolled stripCTable 9AMaterial316 to14 in. (4.8 to 6.4 mm), incl, in thickness may be furnished assheet or plate provided the mate
23、rial 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 SpecificationB 637, UNS N07718, provided the mechanical property requirements of thisspec
24、ification 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 maxPhosphorus 0.015 maxSulf
25、ur 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.TABLE 3 Tensile P
26、roperties 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, %Up 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 s
27、upplied in the annealed condition (temper). The manufac-turer shall demonstrate that annealed material is capable of meeting the propertiesprescribed in Table 3 after precipitation heat treatment. Precipitation heat treat-ment shall consist of heating to 1325 625F (718 614C), hold at temperature for
28、8 h, furnace cool to 1150 625F (621 614C), hold until total precipitation heattreatment 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, %Up to
29、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 manufac-turer shall demonstrate that annealed material is capable of meeting the propertiesprescr
30、ibed 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 elongation require-ments shall be a
31、s specified in Table 4.Testing may also be conducted using incremental loading. In such case, thestress specified in Table 4shall 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
32、in increments of 5000 psi (34.5 MPa).Time to rupture and elongation requirements shall be as specified in Table 4.B670022length of the product in feet (0.04 mm multiplied by the lengthof the product in centimetres).7.4.2 Straightness for coiled strip material is subject toagreement between the manuf
33、acturer and the purchaser.7.5 Edges:7.5.1 When finished edges of strip are specified in thecontract or purchase order, the following descriptions shallapply:7.5.1.1 Square-edge strip shall be supplied with finishededges, with sharp, square corners, and without bevel orrounding.7.5.1.2 Round-edge str
34、ip shall be supplied with finishededges, semicircular in form, and the diameter of the circleforming the edge being equal to the strip thickness.TABLE 5 Permissible Variations in Thickness and Overweight of Rectangular PlatesNOTE 1All plates shall be ordered to thickness and not to weight per square
35、 foot (centimetre). No plates shall vary more than 0.01 in. (0.25 mm)under the thickness ordered, and the overweight of each lotAin each shipment shall not exceed the amount in the table. Spot grinding is permitted toremove surface imperfections, such spots not to exceed 0.01 in. (0.25 mm) under the
36、 specified thickness.Specified Thickness, in.(mm)Permissible Excess in Average WeightB,Cper Square Foot of Plates for Widths Given in Inches (Millimetres) Expressed inPercentage of Nominal WeightsUnder 48(1220)48 to 60(1220 to1520),excl60 to 72(1520 to1830),excl72 to 84(1830 to2130),excl84 to 96(213
37、0 to2440),excl96 to 108(2440 to2740),excl108 to 120(2740 to3050),excl120 to 132(3050 to3350),excl132 to 144(3350 to3660),excl144 to 160(3660 to4070),incl316 to516 (4.8 to 7.9), excl 9.0 10.5 12.0 13.5 15.0 16.5 18.0 . . .516 to38 (7.9 to 9.5), excl 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.0 . .38 to (9.5
38、 to 11.1), excl 7.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.0 19.5716 to12 (11.1 to 12.7),excl6.0 7.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.012 to58 (12.7 to 15.9),excl5.0 6.0 7.0 7.5 9.0 10.5 12.0 13.5 15.0 16.558 to34 (15.9 to 19.1),excl4.5 5.5 6.0 7.0 7.5 9.0 10.5 12.0 13.5 15.034 to 1 (19.1 to 25.4),
39、excl 4.0 4.5 5.5 6.0 7.0 7.5 9.0 10.5 12.0 13.51to214 (25.4 to 57.2), incl 5.0 5.0 5.5 6.5 7.0 8.0 8.5 10.0 11.5 13.0AThe term “lot” applied to this table means all of the plates of each group width and each group thickness.BThe permissible overweight for lots of circular and sketch plates shall be
40、25 % greater than the amounts given in this table.CThe weight of individual plates shall not exceed the nominal weight by more than 114 times the amount given in this table and Footnote B.TABLE 6 Permissible Variations in Thickness of Sheet and Strip(Permissible Variations, Plus and Minus, in Thickn
41、ess, in. (mm), for Widths Given in in. (mm)SheetSpecified Thickness, in. (mm)Hot-Rolled Cold-Rolled48 (1220) andUnderAOver 48 to 60(1220 to 1520),inclA48 (1220) andUnderOver 48 to 60(1220 to 1520),inclA0.018 to 0.025 (0.46 to 0.64), incl 0.003 (0.08) 0.004 (0.10) 0.002 (0.05) 0.003 (0.08)Over 0.025
42、to 0.034 (0.64 to 0.86), incl 0.004 (0.10) 0.005 (0.13) 0.003 (0.08) 0.004 (0.10)Over 0.034 to 0.43 (0.86 to 1.1), incl 0.005 (0.13) 0.006 (0.15) 0.004 (0.10) 0.005 (0.13)Over 0.043 to 0.056 (1.1 to 1.4), incl 0.005 (0.13) 0.006 (0.15) 0.004 (0.10) 0.005 (0.13)Over 0.056 to 0.070 (1.4 to 1.8), incl
43、0.006 (0.15) 0.007 (0.18) 0.005 (0.13) 0.006 (0.15)Over 0.070 to 0.078 (1.8 to 2.0), incl 0.007 (0.18) 0.008 (0.20) 0.006 (0.15) 0.007 (0.18)Over 0.078 to 0.093 (2.0 to 2.4), incl 0.008 (0.20) 0.009 (0.23) 0.007 (0.18) 0.008 (0.20)Over 0.093 to 0.109 (2.4 to 2.8), incl 0.009 (0.23) 0.010 (0.25) 0.00
44、7 (0.18) 0.009 (0.23)Over 0.109 to 0.125 (2.8 to 3.2), incl 0.010 (0.25) 0.012 (0.31) 0.008 (0.20) 0.010 (0.25)Over 0.125 to 0.140 (3.2 to 3.6), incl 0.012 (0.31) 0.014 (0.36) 0.008 (0.20) 0.010 (0.25)Over 0.140 to 0.171 (3.6 to 4.3), incl 0.014 (0.36) 0.016 (0.41) 0.009 (0.23) 0.012 (0.31)Over 0.17
45、1 to 0.187 (4.3 to 4.8), incl 0.015 (0.38) 0.017 (0.43) 0.010 (0.25) 0.013 (0.33)Over 0.187 to 0.218 (4.8 to 5.5), incl 0.017 (0.43) 0.019 (0.48) 0.011 (0.28) 0.015 (0.38)Over 0.218 to 0.234 (5.5 to 5.9), incl 0.018 (0.46) 0.020 (0.51) 0.012 (0.31) 0.016 (0.41)Over 0.234 to 0.250 (5.9 to 6.4), incl
46、0.020 (0.51) 0.022 (0.56) 0.013 (0.33) 0.018 (0.46)Cold-Rolled StripSpecified Thickness, in. (mm) Widths 12 in. (305 mm) and under, 6AUp to 0.050 (1.3), incl 0.0015 (0.04)Over 0.050 to 0.093 (1.3 to 2.4), incl 0.0025 (0.06)Over 0.093 to 0.125 (2.4 to 3.2), inclB0.004 (0.11).AMeasured38 in. (9.5 mm)
47、or more from either edge except for strip under 1 in. (25.4 mm) in width which is measured at any place.BStandard sheet tolerances apply for thicknesses over 0.125 in. (3.2 mm) and for all thicknesses of strip over 12 in. (305 mm) wide.B6700237.5.1.3 When no description of any required form of strip
48、edge is given, it shall be understood that edges such as thoseresulting from slitting or shearing will be acceptable.7.5.1.4 Sheet shall have sheared or slit edges.7.5.1.5 Plate shall have sheared or cut (machined, abrasive-cut, powder-cut, or inert-arc-cut) edges, as specified.TABLE 7 Permissible V
49、ariations in WidthAof Sheared, Plasma-Torch-Cut, and Abrasive-Cut Rectangular PlateB,CSpecified ThicknessPermissible Variations in Widths for Widths Given, in. (mm)Up to 30 (760), inclOver 30 to 72 (760to 1830), inclOver 72 to 108 (1830 to2740), inclOver 108 to 144 (2740to 3660), inclOver 144 to 160 (3660to 4070), inclPlus Minus Plus Minus Plus Minus Plus Minus Plus MinusInchesSheared:D316 to516 , excl31618141838181218 . .516 to12 , excl1418381838181218581812 to34 , excl3818381812185818341834 to 1, ex
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