ASTM_A_649_-_A_649M_-_10_2015.pdf

Designation:A649/A649M10(Reapproved 2015)Standard Specification forForged Steel Rolls Used for Corrugating Paper Machinery1This standard is issued under the fixed designation A649/A649M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification2covers two kinds of rolls used inmachinery for producing corrugated paperboard.Rolls arefabricated of forged bodies and trunnions.The trunnions maybe bolted or shrink assembled on one or both ends of the body.A seal weld may be made at the body/trunnion interface.Rollshells are made of carbon/manganese,or low alloy steel ashereinafter described,and are heat treated prior to assembly.Pressure rolls may be ordered surface hardened as ConditionH,or without surface hardening as Condition S.Provision ismade in Supplementary Requirements S1 and S3 for theoptional surface hardening of corrugating rolls.1.2 Corrugating and pressure rolls made to this specificationshall not exceed 30 in.760 mm in inside diameter.The wallthickness of the roll body shall not be less than112of the insidediameter or 1 in.25 mm,whichever is greater,but shall notexceed 4 in.100 mm.The wall thickness of the corrugatingroll is measured at the bottom of the corrugations in thelocation of the trunnion fit.The maximum design temperature(MDT)of the roll is 600F 315C and the maximumallowable working pressure(MAWP)is 250 psi 1.7 MPa.Theminimum design temperature shall be 40F 4C for roll wallthicknesses up to 3 in.75 mm.For roll wall thicknesses over3 in.75 mm to 4 in.100 mm,the minimum designtemperature shall be 120F 50C.The maximum stresses onthe roll bodies from the combined internal and external loadingare limited to 18 750 psi 129 MPa for the Class 2 pressureroll bodies,and 20 000 psi 138 MPa for Class 1A,1B,or 5pressure or corrugating roll bodies in Grades 1 or 2.For thetrunnions,the maximum stresses from the combined internaland external loading are limited to 15 000 psi 103.4 MPa forClasses 3 or 4,or 20 000 psi 138 MPa for Classes 1A,1B,or5 in Grade 2 only.The Grade 1 strength level is not permissiblefor trunnions.1.3 Referring to Table 1,material to Classes 1A,1B,or 5shall be used for the manufacture of corrugating or pressureroll shells,and Class 2 shall be used only for pressure rollshells.Trunnions shall be made from forgings in Classes 1A,1B,or 5 in Grade 2 strength level as restricted by Footnote Bin Table 2 or in forgings in either Class 3 or 4.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.5 Unless the order specifies the applicable“M”specifica-tion designation,the material shall be furnished to the inch-pound units.1.6 Except as specifically required in this standard,all of theprovisions of Specification A788/A788M apply.2.Referenced Documents2.1 ASTM Standards:3A275/A275M Practice for Magnetic Particle Examination ofSteel ForgingsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA788/A788M Specification for Steel Forgings,General Re-quirementsE165/E165M Practice for Liquid Penetrant Examination forGeneral Industry3.Ordering Information3.1 Material supplied to this specification shall conform tothe requirements of Specification A788/A788M,which out-linesadditionalorderinginformation,manufacturingrequirements,testing and retesting methods and procedures,marking,certification,product analysis variations and addi-tional supplementary requirements.3.2 In addition to the ordering requirementsof SpecificationA788/A788M,the purchaser shall include the maximum de-sign temperature(MDT),if lower than 600F 315C,and the1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.06 on Steel Forgings and Billets.Current edition approved March 1,2015.Published March 2015.Originallyapproved in 1971.Last previous edition approved in 2010 as A649/A649M 10.DOI:10.1520/A0649_A0649M-10R15.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-649/SA-649M in Section II of that Code.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 standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 maximum allowable working pressure(MAWP),if lower than250 psi 1.7 MPa as allowed in 1.2 of the Scope.3.3 When ordering pre