1、Designation: B 620 03 (Reapproved 2008)Standard Specification forNickel-Iron-Chromium-Molybdenum Alloy (UNS N08320)Plate, Sheet, and Strip1This standard is issued under the fixed designation B 620; the number immediately following the designation indicates the year oforiginal adoption or, in the cas
2、e 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.1. Scope1.1 This specification2covers rolled nickel-iron-chromium-molybdenum alloy (UNS N08320)* plate,
3、 sheet, and strip, foruse in general corrosive service.1.2 The following products are covered under this specifi-cation:1.2.1 Sheet and StripHot or cold rolled, solution an-nealed, and descaled unless solution anneal is performed in anatmosphere yielding a bright finish.1.2.2 PlateHot rolled, soluti
4、on annealed, and descaled.1.3 The values stated in inch-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.1.4 This standard does not purport to address all of thesaf
5、ety 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 (MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafe
6、ty and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3B 906 Specification for General Requirements for Flat-Rolled Nickel and Nickel Alloys Plate, Sheet, and StripE 140 Hardness Conversion Tables for Metals Relations
7、hipAmong Brinell Hardness, Vickers Hardness, RockwellHardness, Superficial Hardness, Knoop Hardness, andScleroscope Hardness3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 plate, nmaterial316 in. (4.76 mm) and over inthickness.3.1.2 sheet and strip, nmaterial under316 in. (4.7
8、6 mm) inthickness.4. General Requirements4.1 Material furnished under this specification shall con-form to the applicable requirements of Specification B 906unless otherwise provided herein.5. Ordering Information5.1 It is the responsibility of the purchaser to specify allrequirements that are neces
9、sary for the safe and satisfactoryperformance of material ordered under this specification.Examples of such requirements include, but are not limited to,the following:5.1.1 DimensionsThickness (in decimals of an inch),width, and length (inch or fraction of an inch).5.1.2 CertificationState if certif
10、ication or a report of testresults is required (Specification B 906, Section 21).5.1.3 Optional Requirement:5.1.3.1 PlateState how plate is to be cut (SpecificationB 906, Table A2.3).5.1.4 Purchase InspectionState which tests or inspectionsare to be witnessed (Specification B 906, Section 18).5.1.5
11、Samples for Product (Check) AnalysisState whethersamples should be furnished (Specification B 906, Section7.2.2).6. Chemical Composition6.1 The material shall conform to the composition limitsspecified in Table 1.6.2 If a product (check) analysis is made by the purchaser,the material shall conform t
12、o the requirements specified inTable 1 and Specification B 906.7. Mechanical Properties and Other Requirements7.1 Tensile PropertiesThe material shall conform to theroom temperature tensile properties prescribed in Table 2.1This specification is under the jurisdiction of ASTM Committee B02 onNonferr
13、ous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Nov. 1, 2008. Published November 2008. Originallyapproved in 1977. Last previous edition approved in 2003 as B 620 - 03.2For ASME Boiler and Pressure Ve
14、ssel Code applications see related Specifi-cation SB-620 in Section II of that Code.* New designation established in accordance with ASTM E 527 and SAE J1086,Recommended Practice for Numbering Metals and Alloys (UNS).3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact AST
15、M Customer Service at serviceastm.org. For Annual Book 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.7.2 HardnessThe hardness valu
16、es given in Table 2 areinformative only.8. Dimensions, Mass, and Permissible Variations8.1 WeightThe material covered by this specification shallbe assumed to weigh 0.291 lb/in.3(8.05 g/cm3).8.2 Thickness:8.2.1 Sheet and StripThe thickness shall be measuredwith the micrometer spindle38 in. (9.525 mm
17、) or more fromany edge for material 1 in. (25.4 mm) or over in width and atany place on material under 1 in. in width.8.3 Length:8.3.1 Sheet and Strip:Sheet and strip may be ordered to cut lengths, in which casea variation of18 in. (3.175 mm) over the specified length shallbe permitted with a zero m
18、inus tolerance.8.4 Straightness:8.4.1 The edgewise curvature (depth of cord) of flat sheet,strip, and plate shall not exceed 0.05 in. multiplied by thelength in feet or 0.04 mm multiplied by the length in centime-tres.8.4.2 Straightness for coiled strip is subject to agreementbetween the manufacture
19、r and the purchaser.8.5 Squareness (Sheet)For sheets of all thicknesses andwidths of 6 in. (152.4 mm) or more, the angle between adjacentsides shall be 90 6 0.15 deg (116 in./24 in. or 2.6 mm/m).8.6 FlatnessPlate, sheet, and strip shall be commerciallyflat.8.7 Edges:8.7.1 Plate shall have sheared or
20、 abrasive cut or plasma-torch-cut edges as specified.8.7.2 Sheet and strip shall have sheared or slit edges.9. Product Marking9.1 Each plate, sheet, or strip shall be marked on one facewith the specification number, alloy, heat number, manufactur-ers identification, and size. The markings shall have
21、 nodeleterious effect on the material or its performance and shallbe sufficiently stable to withstand normal handling.9.2 Each bundle or shipping container shall be marked withthe name of the material; this specification number; alloy; thesize; gross, tare, and net weight; consignor and consigneeadd
22、ress; contract or order number; and such other informationas may be defined in the contract or order.10. Keywords10.1 plate; sheet; strip; N08320APPENDIX(Nonmandatory Information)X1. HEAT TREATMENTX1.1 Proper heat treatment during or subsequent to fabri-cation is necessary for optimum performance, a
23、nd the manu-facturer shall be consulted for details.ASTM 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 validity of any such patent rig
24、hts, 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 comments are invited either for
25、 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 received a fair hearing
26、 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
27、 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).TABLE 1 Chemical RequirementsElement Composition Limits, %Nickel 25.027.0Iron remainderAChromium 21.023.0Molybdenum 4.06.0Mangane
28、se, max 2.5Carbon, max 0.05Titanium, min 4 3 carbonSilicon, max 1.00Phosphorus, max 0.04Sulfur, max 0.03ASee Specification B 906.TABLE 2 Mechanical Property RequirementsTensileStrength min,psi (MPa)Yield Strength(0.2 % Offset)min, psi (MPa)Elongation in 2in.(50.8 mm) or4DAmin, %RockwellHardness,Bmax75 000 (517) 28 000 (193) 35 95 HRBAD refers to the diameter of the tension specimen.BHardness values are shown for information purposes only and are not to beused as a basis for rejection or acceptance. For approximate hardness conver-sions, see Hardness Conversion Tables E 140.B 620 03 (2008)2
