1、Designation: B 872 06Standard Specification forPrecipitation-Hardening Nickel Alloys Plate, Sheet, andStrip1This standard is issued under the fixed designation B 872; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers rolled precipitation hardenablenickel-iron-chromium-columbium (Nb)-titanium-aluminum al-loy (N0
3、9908) plate, sheet, and strip in the annealed condition(temper). This alloy is used as sheathing for super conductorcables, as tooling for fabrication of such cables, and for otherapplications requiring a material with low coefficient-of-expansion properties.1.2 The values stated in inch-pound units
4、 are to be regardedas the standard. The values given in parentheses are forinformation only.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 thos
5、e identified in the appropriateMaterial 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:2E8 Test Met
6、hods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 228 Test Method for Linear Thermal Expansion of SolidMaterials With a Push-Rod DilatometerE 1473 Test Methods for Chemical Analysis of Nickel,Cobalt, and
7、High-Temperature Alloys3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 The terms given in Table 1 shall apply.4. Ordering Information4.1 Orders for material under this specification shouldinclude the following information:4.1.1 AlloyName or UNS number (see Table 2).4.1.2 ASTM
8、designation and year of issue.4.1.3 ConditionSee 6.1 and Appendix X1.4.1.4 FinishSee Appendix X1.4.1.5 DimensionsThickness, width, and length.4.1.6 Quantity.4.1.7 Optional Requirements:4.1.7.1 Sheet and StripWhether to be furnished in coil, incut straight lengths, or in random straight lengths.4.1.7
9、.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); also how plate is to be cut (see 7.2.1 and 7.3.2).4.1.8 Fabrication DetailsNot mandatory but helpful tothe manufacturer:4.1.8.1 Welding or BrazingPr
10、ocess to be employed.4.1.8.2 PlateWhether material is to be 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
11、 wishes towitness the tests or inspection of material at the place of1This 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 Dec. 1
12、, 2006. Published January 2007. Originallyapproved in 1996. Last previous edition approved in 2003 as B 872 96 (2003).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, refer t
13、o 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) (Table 4) Table 6BandTable 7Cold-rolled sheetC0.010 to 0.250 (0.25 to 6.4), incl(Table 5)Table 8Cold-rolled stripC0.005 to 0.250 (0.13 to 6.
14、4), incl(Table 5)Table 8AMaterial316 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 in. (250 mm) and under, may be furnished ashot-finished rectangles w
15、ith sheared or cut edges provided the mechanicalproperty requirements of this specification 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.1Copyright ASTM International, 100 Barr
16、Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.manufacture, 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 presc
17、ribed in Table 2.5.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the product (check)analysis variations prescribed in Table 2.6. Mechanical and Other Requirements6.1 Tensile PropertiesThe material after precipitationhardening shall conform to the tensile
18、 properties prescribed inTable 3.6.2 Coeffcient of Thermal Expansion:6.2.1 The mean coefficient of thermal expansion from 77F(25C) to 1292F (700C) shall not exceed 7.8 3 106in./in./F (14.0 3 106cm/cm/C).6.2.2 The inflection temperature shall not exceed 572F(300C).7. Dimensions and Permissible Variat
19、ions7.1 Thickness and Weight:7.1.1 PlateThe permissible variation under the specifiedthickness and permissible excess in overweight shall notexceed the amounts prescribed in Table 4.7.1.1.1 For use with Table 4, plate shall be assumed toweigh 0.292 lb/in.3(8.08 g/cm3).7.1.2 Sheet and StripThe permis
20、sible variations in thick-ness of sheet and strip shall be as prescribed in Table 5. Thethickness of strip and sheet shall be measured with themicrometer 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
21、 Width or Diameter:7.2.1 PlateThe permissible variations in width of rectan-gular plates and diameter of circular plates shall be asprescribed in Table 6 and Table 7.7.2.2 Sheet and StripThe permissible variations in widthfor sheet and strip shall be as prescribed in Table 8.7.3 Length:7.3.1 Sheet a
22、nd 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.7.3.2 Permissible variations in length of rectangular plateshall be as prescribed in Table 9.7.4 Straightness:TABLE 2 Chemical RequirementsElementComposition Li
23、mits, %N09908Composition Limits, %N09925Composition Limits, %N07725Product (Check) AnalysisVariations, Under min orOver max, of the SpecifiedLimit of ElementNickel 47.0 min 42.0 min 55.0 min 0.3551.0 max 46.0 max 59.0 max 0.35Chromium 3.75 min 19.5 min 19.0 min 0.104.5 max 22.5 max 22.5 max 0.10Iron
24、 remainderA22.0 min remainderA.Manganese, max 1.0 1.0 0.35 0.03Carbon, max 0.03 0.03 0.03 0.01Copper . 1.5 min . 0.030.5 max 3.0 max .Silicon, max 0.5 0.5 0.20 0.03Sulfur, max 0.005 0.03 0.010 0.003Aluminum 0.75 min 0.1 min . 0.101.25 max 0.5 max 0.35 max 0.10Titanium 1.20 min 1.9 min 1.00 min 0.051
25、.80 max 2.40 max 1.70 max 0.05Columbium (Nb) 2.7 min . 2.75 min 0.103.3 max 0.5 max 4.00 max 0.15Phosphorus 0.015 max 0.03 0.015 0.005Boron 0.012 max . . 0.005Cobalt 0.5 max . . 0.03Molybdenum . 2.5 min 7.00 min 0.15. 3.5 max 9.50 max 0.15AIron shall be determined arithmetically by difference.TABLE
26、3 Tensile Properties for Plate, Sheet, and StripANominal Thickness,in. (mm)Tensile Strength,min, ksi (MPa)Yield Strength(0.2 % offset),min, ksi (MPa)Elongation in 2 in.or 50 mm (or 4D),min %N09908BUp to 1.0 (25.4), incl 170 (1172) 120 (827) 12Over 1.0 to 2.25(25.4 to 57.2), incl170 (1172) 120 (827)
27、10N09925CUp to 1.0 (25.4), incl 140 (965) 105 (724) 18Over 1.0 to 2.25(25.4 to 57.2), incl140 (965) 105 (724) 18N07725DUp to 1.0 (25.4), incl 150 (1034) 120 (827) 20Over 1.0 to 2.25(25.4 to 57.2), incl150 (1034) 120 (827) 20AMaterial shall be supplied in the annealed condition (temper). The manufac-
28、turer shall demonstrate that annealed material is capable of meeting the propertiesprescribed in Table 3 after precipitation heat treatment.BPrecipitation heat treatment for N09908 shall consist of heating to 1292F(700C), holding at temperature for 50 h, and then air cooling.CPrecipitation heat trea
29、tment for N09925 consists of 1365F (740C), hold attemperature for 6 to 9 h, furnace cool to 1150F (621C), hold until totalprecipitation heat treatment time has reached 18 h, air cool or faster.DPrecipitation heat treatment for N07725 consists of 1350F (732C) for 8 hfollowed by furnace cooling to 150
30、0 to 1200F (621 to 649C), holding 8 h, and aircooling.B8720627.4.1 The edgewise curvature (depth of chord) of 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).7.4.2 Straightness for co
31、iled strip material is subject toagreement between the manufacturer 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
32、corners, and without bevel orrounding.7.5.1.2 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.7.5.1.3 When no description of any required form of stripedge is given, it shall be understood
33、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.7.6 Squareness (Sheet)For sheets of all thicknesses, theang
34、le between adjacent sides shall be 90 6 0.15 (116 in. in 24in.) (1.6 mm in 610 mm).7.7 FlatnessStandard flatness tolerances for plate shallconform to the requirements prescribed in Table 10. “SpeciallyTABLE 4 Permissible Variations in Thickness and Overweight of Rectangular PlatesNOTE 1All plates sh
35、all be ordered to thickness and not to weight per square 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 imperfection
36、s, such spots not to exceed 0.01 in. (0.25 mm) under the specified thickness.Specified Thickness,in. (mm)Permissible Excess in Average WeightBCper Square Foot of Plates for Widths Given in Inches (Millimetres) Expressed in Percent-age of Nominal WeightsUnder 48(1220)48 to 60(1220 to1520), excl60 to
37、72(1520 to1830), excl72 to 84(1830 to2130), excl84 to 96(2130 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
38、 to 9.5), excl 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.0 . .38 to716 (9.5 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), excl 6.0 7.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.012 to58 (12.7 to 15.9), excl 5.0 6.0 7.0 7.5 9.0 10.5 12.0 13.5 15.0 16.558 to34 (15.9 to 19.1
39、), excl 4.5 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), 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.B
40、The permissible overweight for lots of circular and sketch plates shall be 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 Table Footnote B.TABLE 5 Permissible Variations
41、in Thickness of Sheet and StripNOTE 1Permissible variations, plus and minus, in thickness, in. (mm), for widths given in in. (mm).SheetSpecified Thickness, in. (mm)Hot-Rolled Cold-Rolled48 (1220) and UnderAOver 48 to 60 (1220 to 1520),inclA48 (1220) and UnderAOver 48 to 60 (1220 to1520), inclA0.018
42、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 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 0.043 (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), in
43、cl 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 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
44、.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) 0.007 (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
45、.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 0.171 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), in
46、cl 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 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), in
47、cl 0.0025 (0.06)Over 0.093 to 0.125 (2.4 to 3.2), inclB0.004 (0.11)AMeasured38 in. (9.5 mm) 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 str
48、ip over 12 in. (305 mm) wide.B872063TABLE 6 Permissible Variations 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), incl Over 30 to 72 (760to 1830), inclOver 72 to 108 (1830to 274
49、0), 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, excl121812185818341878181to114 , incl5818581834187818 118Abrasive-cut:E,F316 to 114 , incl18181818181818181818over 114 to 214 , incl3161831618316183161831618Plasma-torch-cut:G316 to
