1、Designation:B68896(Reapproved 2014)Standard Specification forChromium-Nickel-Molybdenum-Iron(UNS N08366 and UNSN08367)Plate,Sheet,and Strip1This standard is issued under the fixed designation B688;the number immediately following the designation indicates the year oforiginal adoption or,in the case
2、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 Thisspecificationcoverschromium-nickel-molybdenum-iron UNS N08366 and UNS N083672plate,sheet,and st
3、rip for use in corrosive service and heat-resistingapplications.1.2 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.1.3 This standard does
4、 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 identified in the appropriateMaterial Safety Data Sheet(MSDS)for this product/materialas provided by the manufactur
5、er,to establish appropriatesafety and health practices,and determine the applicability ofregulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3E8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE10 Test Method for Brinell Hardness of Metallic MaterialsE18 Test Meth
6、ods for Rockwell Hardness of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE38 Methods for Chemical Analysis of Nickel-Chromiumand Nickel-Chromium-Iron Alloys(Withdrawn 1989)4E140 Hardness Conversion Tables for Metals Relationshi
7、pAmong Brinell Hardness,Vickers Hardness,RockwellHardness,Superficial Hardness,Knoop Hardness,Sclero-scope Hardness,and Leeb HardnessE354 Test Methods for Chemical Analysis of High-Temperature,Electrical,Magnetic,and Other Similar Iron,Nickel,and Cobalt Alloys3.Terminology3.1 Definitions of Terms Sp
8、ecific to This Standard:3.1.1 sheet,nmaterial under316in.(5 mm)in thicknessand 24 in.(610 mm)and over in width.3.1.2 strip,nmaterial under316in.(5 mm)in thicknessand under 24 in.(610 mm)in width.3.1.3 plate,nmaterial316in.(5 mm)and over in thicknessand over 10 in.(254 mm)in width.4.Ordering Informat
9、ion4.1 Orders for material under this specification shall includethe following information,as required:4.1.1 Quantity(feet,metres,or number of pieces),4.1.2 Alloy name or UNS number,4.1.3 Finish(hot-rolled or cold-rolled),4.1.4 Dimensions(thickness,width,and length if cut-length),4.1.5 Certification
10、,if required,4.1.6 Purchasers inspection,if required,4.1.7 ASTM designation and year of issue,and4.1.8 Samples for product analysis,if required.5.Chemical Composition5.1 The material shall conform to the composition limitsspecified in Table 1.5.2 If a product(check)analysis is made by the purchaser,
11、the material shall conform to the permissible variations forproduct(check)analysis in Table 1.6.Mechanical Properties and Other Requirements6.1 The material shall conform to the mechanical propertyrequirements specified in Table 2.1This specification is under the jurisdiction of ASTM Committee B02 o
12、nNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 1981.Last previous edition approved in 2009 as B688 96(2009).DOI:10.1520/B0688-96R14.2Ne
13、w designation established in accordance with ASTM E527 and SAE J1086,Practice for Numbering Metals and Alloys(UNS).3For 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 st
14、andards Document Summary page onthe ASTM website.4The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.Dimensions and Permissible Variations7.1 SheetMaterial
15、shall conform to the variations speci-fied in Tables 3-9,inclusive.There will be no flatness require-ments for non-stretcher leveled sheet.7.2 StripMaterial shall conform to the variations specifiedin Tables 10-13,inclusive.Note that strip of all sizes may beordered to cut lengths in which case a va
16、riation of12in.(13mm)over the specified length shall be permitted.There shall beno flatness requirements for non-stretcher leveled strip.7.3 PlateMaterial shall conform to the variations specifiedin Tables 14-20,inclusive.Specially flattened plate,when sospecified,shall have permissible variations in flatness as agreedupon between the manufacturer and purchaser.8.Workmanship,Finish,and Appearance8.1 The material shall be uniform in quality and condition,smooth,commercially straight or flat,and f
