1、Designation: B 512 04Standard Specification forNickel-Chromium-Silicon Alloy (UNS N08330) Billets andBars1This standard is issued under the fixed designation B 512; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last r
2、evision. 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 wrought heat-resisting alloyUNS N08330 in the form of billets and bars only for reforging.1.2 The
3、 values stated in inch-pound units are to be regardedas the standard. The metric equivalent of the inch-pound unitsmay be approximate.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 beco
4、me familiarwith all hazards including those identified in the appropriateMaterial Safety Data Sheet for this product/material as pro-vided by the manufacturer, to establish appropriate safety andhealth practices, and determine the applicability of regulatorylimitations prior to use.2. Referenced Doc
5、uments2.1 ASTM Standards:2B 880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel, Nickel Alloys andCobalt AlloysE 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 1473 Test Methods for Chemical Analysis of Nickel,Co
6、balt, and High Temperature Alloys3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bar, nmaterial of round solid section with uniformcross section along its whole length, furnished in straightlengths.3.1.2 billet, nmaterial of solid section with uniform crosssection along its wh
7、ole length, furnished in straight lengths.The typical section is round-cornered square with dimensionstypically in the range 112 by 112 in. (38 by 38 mm) to 10 by 10in. (254 by 254 mm).4. Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary
8、for material ordered under thisspecification. Examples of such requirements include, but arenot limited to, the following:4.1.1 Alloy name or UNS Number.4.1.2 ASTM designation and year of issue.4.1.3 Section (round, round-cornered square, etc.).4.1.4 Dimensions (diameter or thickness, width and leng
9、th).4.1.5 Quantity (weight or number of pieces).4.1.6 Certification State if certification is required (Sec-tion 12).4.1.7 Samples for Product (Check) AnalysisState whethersamples for product (check) analysis should be furnished.4.1.8 Purchaser InspectionIf a purchaser wishes to wit-ness tests or in
10、spections of material at place of manufacture,the purchase order must so state indicating which test orinspections are to be witnessed.5. Chemical Composition5.1 The material shall conform to the requirements as tochemical composition specified in Table 1.5.2 If a product (check) analysis is perform
11、ed by thepurchaser, the material shall conform to the chemistry of Table1, subject to the tolerances provided in Specification B 880.TABLE 1 Chemical RequirementsElementCompositionLimits, %Carbon 0.08 maxManganese 2.00 maxPhosphorus 0.03 maxSulfur 0.03 maxSilicon 0.751.50Chromium 17.020.0Nickel 34.0
12、37.0Copper 1.00 maxLead 0.005 maxTin 0.025 maxIron remainderAAElement shall be determined arithmetically by difference.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 Cobal
13、t and Their Alloys.Current edition approved Feb. 1, 2004. Published February 2004. Originallyapproved in 1970. Last previous edition approved in 1999 as B 512 99.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book
14、of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Dimensions and Permissible Variations6.1 Billets and bars shall conform to the sh
15、ape and dimen-sions specified by the purchaser with a permissible variation of65%.6.1.1 Material may be conditioned by chipping or grindingto remove injurious surface defects provided the depth of theseconditioned areas does not exceed the negative tolerance.6.1.2 Dimensions may vary locally beyond
16、these limits byagreement between purchaser and supplier.7. Workmanship, Finish, and Appearance7.1 The material shall be uniform in quality, commerciallystraight, and free of injurious imperfections.8. Sampling8.1 Lot Definition A lot for chemical analysis shall consistof one heat.8.2 Test Material S
17、election:8.2.1 Chemical AnalysisRepresentative samples fromeach lot shall be taken during pouring or subsequent process-ing. Product (check) analysis shall be wholly the responsibilityof the purchaser.9. Number of Tests9.1 Chemical AnalysisOne per lot.10. Test Methods10.1 Chemical CompositionIn case
18、 of dispute, the chemi-cal analysis shall be made in accordance with Test MethodsE 1473.10.2 For purposes of determining compliance with thespecified limits for requirements of the properties listed in thefollowing table, an observed value, or a calculated value, shallbe rounded as indicated below,
19、in accordance with the round-ing method of Practice E 29:TestRounded Unit for Observed orCalculated ValueChemical composition Nearest unit in the last right-hand placeof figures of the specified limit. If twochoices are possible, as when the dig-its dropped are exactlya5ora5fol-lowed only by zeros,
20、choose the oneending in an even digit with zero de-fined as an even digit.11. Inspection11.1 Inspection of the material shall be as agreed uponbetween the purchaser and the supplier as part of the purchasecontract.12. Rejection and Rehearing12.1 Material that fails to conform to the requirements oft
21、his 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, the producer orsupplier may make claim for a rehearing.13. Certification13.1 When specified in the purchase order or contract, a
22、producers or suppliers certification shall be furnished to thepurchaser that the material was manufactured, sampled, tested,and inspected in accordance with this specification and hasbeen found to meet the requirements. When specified in thepurchase order or contract, a report of the test results sh
23、all befurnished.14. Product Marking14.1 The following information shall be marked on thematerial or included on the package, or on a label or tagattached thereto: The name of the material or UNS number,heat number, ASTM B512-XX, the size, gross, and net weight,consignor and consignee address, and co
24、ntract or order num-ber.15. Keywords15.1 bar; billet; high-temperature alloyASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validit
25、y of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comment
26、s are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not
27、 received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).B512042
