1、AN AMERICAN NATIO NAL STANDAR DPreferred Metric Sizes for Flat,Round,Square,Rectangular,and Hexagonal Metal ProductsASME B32.100-2005(Consolidation of ASME B32.3M and B32.4M)Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University
2、User.No further reproduction or distribution is permitted.Uncontrolled when printed.ASME B32.100-2005(Consolidation of ASME B32.3M and B32.4M)Preferred MetricSizes for Flat,Round,Square,Rectangular,and HexagonalMetal Products Three Park Avenue New York,NY 10016AN AMERICAN NATIONAL STANDARDCopyrighte
3、d material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:September 12,2005This Standard will be revised when the Society approves the issuan
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11、right 2005 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when print
12、ed.CONTENTSForeword.ivAcknowledgement .ivCommittee Roster .vCorrespondence With the B32 Committee .vi1Scope .12General .13Use of Tables .14Basis of Tables .15Tolerances.1Tables1Preferred Thicknesses,D(mm),for All Flat Metal Products .22Preferred Widths(mm)for Flat Metal Products .23Preferred Lengths
13、(mm)for Flat Metal Products.24Preferred Diameters,D(mm),of Round Metal Products.35Preferred Across Flat Sizes,D(mm),of Square Metal Products .46Preferred Across Flat Sizes,D(mm),of Hexagonal Metal Products .47Preferred Lengths(mm)of Round,Square,Rectangular,and Hexagonal Metal Products .48Preferred
14、Across Flat Sizes(mm)of Rectangular Metal Products .59Thickness Tolerances(mm)for Hot-Rolled Steel Sheet of Structural Qualities(ISO 4995,ISO 5002).610Thickness Tolerances(mm)for Cold-Rolled Steel Sheet of Structural Qualities(ISO 4997).611Tolerance(mm)for Hot-Rolled,Round,Square,and Hex Steel Bars(
15、ISO 1035-4).612Tolerances(mm)for Hot-Rolled Flat Bars(ISO 1035-4).613Tolerance(mm)for Cold-Finished,Round,Square,and Hex Steel Bars(ANSI B4.2).7Nonmandatory AppendixARelated Standards.9iiiCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanfo
16、rd University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORDThe U.S.Department of Commerce,in its July 1971 report to Congress titled“A Metric AmericaA Decision Whose Time Has Come,”recommended that the United States should change to themetric system of measurement through a coordinated national program.This action,along withsubsequent increased metric activity in industry,resulted in a number of requests from produc-ers and users that the B32 Commit
