ASTM B872-2006(2016) Standard Specification for Precipitation-Hardening Nickel Alloys Plate Sheet and Strip《沉淀硬化镍合金板材 薄板材和带材的标准规格》.pdf

《ASTM B872-2006(2016) Standard Specification for Precipitation-Hardening Nickel Alloys Plate Sheet and Strip《沉淀硬化镍合金板材 薄板材和带材的标准规格》.pdf》由会员分享，可在线阅读，更多相关《ASTM B872-2006(2016) Standard Specification for Precipitation-Hardening Nickel Alloys Plate Sheet and Strip《沉淀硬化镍合金板材 薄板材和带材的标准规格》.pdf（7页珍藏版）》请在麦多课文档分享上搜索。

1、Designation: B872 06 (Reapproved 2016)Standard Specification forPrecipitation-Hardening Nickel Alloys Plate, Sheet, andStrip1This standard is issued under the fixed designation B872; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,

2、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.1. Scope1.1 This specification covers rolled precipitation hardenablenickel-iron-chromium-columbium (Nb)-titanium-alum

3、inum al-loy (N09908) 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 i

4、nch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that 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

5、 theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateSafety Data Sheet (SDS) for this product/material as providedby the manufacturer, to establish appropriate safety and healthpractices, and determine the applicability of re

6、gulatory limi-tations prior to use.2. Referenced Documents2.1 ASTM Standards:2E8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE228 Test Method for Linear Thermal Expansion of SolidMaterials Wit

7、h a Push-Rod DilatometerE1473 Test Methods for Chemical Analysis of Nickel, Co-balt and 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 shouldi

8、nclude the following information:4.1.1 AlloyName or UNS number (see Table 2).4.1.2 ASTM 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 StripWhet

9、her 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); also how plate is to be cut (see 7.2.1 and 7.3.2).4.1.8 Fabr

10、ication DetailsNot mandatory but helpful tothe manufacturer:4.1.8.1 Welding or BrazingProcess 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) Analysis

11、Whethersamples should be furnished (see 5.2).4.1.11 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 Section 13).5. Chemical Composition

12、5.1 The material shall conform to the requirements as tochemical composition prescribed 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 2.1This specification is under the jurisdiction

13、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 June 1, 2016. Published June 2016. Originallyapproved in 1996. Last previous edition approved in 2011 as B872 11. DOI:10.

14、1520/B0872-06R16.2For 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 to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbo

15、r Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16. Mechanical and Other Requirements6.1 Tensile PropertiesThe material after precipitationhardening shall conform to the tensile properties prescribed inTable 3.6.2 Coeffcient of Thermal Expansion:6.2.1 The mean coefficient of the

16、rmal expansion from 77F(25C) to 1292F (700C) shall not exceed 7.8 106in./in./F (14.0 106cm/cm/C).6.2.2 The inflection temperature shall not exceed 572F(300C).7. Dimensions and Permissible Variations7.1 Thickness and Weight:7.1.1 PlateThe permissible variation under the specifiedthickness and permiss

17、ible 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 permissible variations in thick-ness of sheet and strip shall be as prescribed in Table 5. Thethickness of strip

18、 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 Width or Diameter:7.2.1 PlateThe permissible variations in width of rectan-gular plates and diameter of c

19、ircular 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 and strip of all sizes may be ordered to cutlengths, in which case a variation of18 in. (3.2 mm) over thesp

20、ecified length shall be permitted.7.3.2 Permissible variations in length of rectangular plateshall be as prescribed in Table 9.7.4 Straightness:7.4.1 The edgewise curvature (depth of chord) of flat sheet,strip, and plate shall not exceed 0.05 in. multiplied by thelength of the product in feet (0.04

21、mm multiplied by the lengthof the product in centimetres).7.4.2 Straightness for coiled 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:

22、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 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

23、 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.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-c

24、ut) edges, as specified.7.6 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).7.7 FlatnessStandard flatness tolerances for plate shallconform to the requirements prescribed in Table 10. “Speciallyflattened” plate

25、, when so specified, shall have permissiblevariations in flatness as agreed upon between the manufacturerand purchaser.8. Workmanship, Finish, and Appearance8.1 The material shall be uniform in quality and temper,smooth, commercially straight or flat, and free of injuriousimperfections.9. Sampling9.

26、1 LotDefinition:9.1.1 A lot for chemical analysis shall consist of one heat.9.1.2 A lot for tension testing shall consist of all materialfrom the same heat, nominal thickness, and condition.9.1.2.1 Where material cannot be identified by heat, a lotshall consist of not more than 500 lb (227 kg) of ma

27、terial in thesame thickness and condition, except for plates weighing over500 lb, in which case only one specimen shall be taken.9.2 Test Material Selection:9.2.1 Chemical AnalysisRepresentative samples shall betaken during pouring or subsequent processing.9.2.1.1 Product (Check) Analysis shall be w

28、holly the re-sponsibility of the purchaser.9.2.2 Tension and Coeffcient of Thermal ExpansionTestingSamples of the material to provide test specimens fortension and coefficient of thermal expansion testing shall betaken from such locations in each lot as to be representative ofthat lot.10. Number of

29、Tests10.1 Chemical AnalysisOne test per lot.10.2 TensionOne test per lot.10.3 Coeffcient of Thermal ExpansionOne test per lot.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

30、.4), incl(Table 5)Table 8Cold-rolled stripC0.005 to 0.250 (0.13 to 6.4), incl(Table 5)Table 8AMaterial316 to14 in. (4.8 to 6.4 mm), incl, in thickness may be furnished as sheetor plate provided the material meets the specification requirements for thecondition ordered.BHot-rolled plate, in widths 10

31、 in. (250 mm) and under, may be furnished ashot-finished rectangles with 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 requireme

32、nts for the conditionordered.B872 06 (2016)211. Specimen Preparation11.1 Tension test specimens shall be taken from material inthe annealed condition (temper). The specimen shall be trans-verse to the direction of rolling when width will permit. Thetest specimen shall be precipitation heat treated (

33、see Table 3)prior to testing.11.2 Tension test specimens shall be any of the standard orsubsize specimens shown in Test Methods E8.11.3 In the event of disagreement, referee specimens shallbe as follows:11.3.1 Full thickness of the material machined to the formand dimensions shown for the sheet-type

34、 specimen in TestMethods E8 for material under12 in. (12.7 mm) in thickness.11.3.2 The largest possible round specimen shown in TestMethods E8 for material12 in. (12.7 mm) and over.11.4 Coefficient of thermal expansion test specimens maybe taken from material in the annealed condition following thef

35、inal hot rolling, or in the annealed condition following anysubsequent cold rolling. The coefficient of thermal expansiontest specimens shall be given the age hardening heat treatmentprescribed in Table 3 prior to testing.12. Test Methods12.1 The chemical composition, mechanical, and otherproperties

36、 of the material as enumerated in this specificationshall be determined, in case of disagreement, in accordancewith the following methods:Test ASTM DesignationChemical analysis E1473Tension E8Rounding procedure E29Coefficient of Thermal Expansion E22812.2 For purposes of determining compliance with

37、thespecified limits for requirements of the properties listed in thefollowing table, an observed value or a calculated value shallTABLE 2 Chemical RequirementsElementComposition Limits, %N09908Composition Limits, %N09925Composition Limits, %N07725Product (Check) AnalysisVariations, Under min orOver

38、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 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

39、 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 0.051.80 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.

40、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 3 Tensile Properties for Plate, Sheet, and StripANominal Thickness,in. (mm)Tensile Strength,min, ksi (MPa)Yield Strength

41、(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) 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) 18N07725DU

42、p 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 manufacturershall demonstrate that annealed material is capable of meeting the propertiesprescribed in Table 3 after precipitati

43、on 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 treatment for N09925 consists of 1365F (740C), hold attemperature for 6 to 9 h, furnace cool to 1150F (621C), hold until total

44、precipitation 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 1500 to 1200F (621 to 649C), holding 8 h, and aircooling.B872 06 (2016)3be rounded as indicated in accordance with the roundi

45、ngmethod of Practice E29.TestRounded Unit for Observed orCalculated ValueChemical composition and tolerances(when expressed in decimals)nearest unit in the last right-hand placeof figures of the specified limitIf two choices are possible, as whenthe digits are dropped are exactly a 5,or a 5 followed

46、 only by zeros, choosethe one ending in an even digit, withzero defined as an even digit.Tensile strength and yield strength nearest 1000 psi (6.9 MPa)Elongation nearest 1 %Rupture life nearest 1 h13. Inspection13.1 Inspection of the material shall be agreed upon be-tween the manufacturer and the pu

47、rchaser as part of thepurchase contract.14. Rejection and Rehearing14.1 Material that fails to conform to the requirements ofthis specification may be rejected. Rejection should be reportedto the producer or supplier promptly and in writing. In case ofdissatisfaction with the results of the test, th

48、e producer orsupplier may make claim for a rehearing.TABLE 4 Permissible Variations in Thickness and Overweight of Rectangular PlatesNOTE 1All plates shall 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 ord

49、ered, 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 specified thickness.Specified Thickness,in. (mm)Permissible Excess in Average WeightB,Cper 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 72(1520 to1830), excl72 to 84(1830 to2130), excl84 to 96(2130 to2440),