1、Designation: B 620 03Standard 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 case of revision, the
2、 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.1. Scope1.1 This specification2covers rolled nickel-iron-chromium-molybdenum alloy (UNS N08320)* plate, sheet, and strip
3、, 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, solution annealed, and
4、descaled.1.3 The values stated in inch-pound units are to be regardedas the standard.1.4 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 those ident
5、ified 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 Documents2.1 ASTM Standards:B 906 Specification for
6、General Requirements for Flat-Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip33. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 platematerial316 in. (4.76 mm) and over in thick-ness.3.1.2 sheet and stripmaterial under316 in. (4.76 mm) inthickness.4. General Requirements4
7、.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 necessary for the safe and satisfactoryperforma
8、nce 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 certification or a report of testresults is requ
9、ired (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 Samples for Product (Check) AnalysisState
10、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 to the requirements specified inTable 1 and
11、 Specification B 906.7. Mechanical Properties and Other Requirements7.1 Tensile PropertiesThe material shall conform to theroom temperature tensile properties prescribed in Table 2.7.2 HardnessThe hardness values given in Table 2 areinformative only.1This specification is under the jurisdiction of A
12、STM 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 10, 2003. Published July 2003. Originallyapproved in 1977. Last previous edition approved in 1998 as B 620 - 98a.2For AS
13、ME Boiler and Pressure Vessel 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).3Annual Book of ASTM Standards, Vol 02.04.1Copyright ASTM
14、International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.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 s
15、hall be measuredwith the micrometer spindle38 in. (9.525 mm) 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
16、) over the specified length shallbe permitted with a zero minus 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
17、coiled strip is subject to agreementbetween the manufacturer 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 c
18、ommerciallyflat.8.7 Edges:8.7.1 Plate shall have sheared or 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, manuf
19、actur-ers identification, and size. The markings shall have 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; thesi
20、ze; gross, tare, and net weight; consignor and consigneeaddress; 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 subsequ
21、ent to fabri-cation is necessary for optimum performance, and 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 advise
22、d that determination of the validity 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 re
23、approved or withdrawn. Your comments 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 y
24、ou feel that your comments have not 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. Individua
25、l 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).TABLE 1 Chemical RequirementsElement Composition Limits, %Nickel 25.02
26、7.0Iron remainderAChromium 21.023.0Molybdenum 4.06.0Manganese, 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)E
27、longation 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.B620032
