1、ANSI H35.2-2013Revision of H35.2-2009American National Standard Dimensional Tolerances for Aluminum Mill Products SecretariatThe Aluminum AssociationIncorporatedAmerican National StandardApproval of an American National Standard requires verification by ANSI that the requirements for due process, co
2、nsensus, and other criteria for approval have been met by the standards developer.Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a s
3、imple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution.The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether
4、he has approved the standards or not, from manufac-turing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards.The American National Standards Institute does not develop standards and will under no circumstances give an interpretation of any American St
5、andard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretation should be addressed to the secretariat or sponsor whose name appears on the title page of th
6、is standard.CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of approval. Purchasers
7、of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, New York, NY 10036.ANSI H35.2-2013Revision of H35.2-2009American National Standard Dimensional Tolerances for Aluminum Mill ProductsSe
8、cretariatThe Aluminum Association, Inc.1525 Wilson Boulevard, Suite 600Arlington, Virginia 22209Approved November 7, 2013American National Standards Institute3Contents1. Definitions 72. Standard Limits for Expressing Tolerances 73. Section Intentionally Blank 84. Section Intentionally Blank 85. Sect
9、ion Intentionally Blank 86. Section Intentionally Blank 87. Sheet and Plate .9Sheet and PlateTables 7.7a7.18 10Special Finished Sheet and Plate ProductsTables 7.267.43 .14Commercial Roofing and SidingTables 7.267.30 14Duct SheetTables 7.317.34 .15Tread Sheet and PlateTables 7.367.43 158. Fin Stock .
10、17Fin StockTables 8.28.3 .179. Foil .18FoilTables 9.29.24 18Unmounted FoilTables 9.29.8 18Laminated FoilTables 9.99.16 19Printed FoilTables 9.179.24 2010. Wire, Rod, and BarRolled or Cold Finished 21Wire, Rod and BarRolled or Cold-FinishedTables 10.510.20 .2111. Wire, Rod, Bar and ProfilesExtruded .
11、24Wire, Rod, Bar and ProfilesTables 11.211.14 .2412. Tube and Pipe .31Tube and PipeTables 12.212.55 32Extruded TubeTables 12.212.14 .32Extruded Coiled TubeTables 12.1612.18 36Drawn TubeTables 12.2012.32 37Heat Exchanger TubeTables 12.3412.39 40Welded TubeTables 12.4112.47 .41PipeTables 12.4912.55 43
12、13. Structural Profiles 4614. Forging Stock .47Forging StockTables 14.114.4 .4715. Forgings .48Hand ForgingsTable 15.3 4816. Electrical Conductors .49Electrical ConductorsTables 16.716.35 49Wire, Rod and BarRolled or Cold FinishedTables 16.716.21 49Extruded Rod and barTables 16.2216.29 51PipeTables
13、16.3116.35 534Page left intentionally blank5ACCREDITED STANDARDS COMMITTEE H35ONALUMINUM AND ALUMINUM ALLOYSOFFICERSTrevor J. Lewis, ChairmanP. Shafiee, SecretaryCOMMITTEE MEMBERSTHE ALUMINUM ASSOCIATIONTREVOR J. LEWIS, Rio Tinto Alcan, Cleveland, OhioAEROSPACE INDUSTRIES ASSOCIATION OF AMERICAJAMES
14、 R. RENTSCH, Aerospace Industries Association of America, Arlington, VirginiaALUMINUM EXTRUDERS COUNCILJOHN MURPHY, Hydro Aluminum North America, Saint Augustine, FloridaAMERICAN FOUNDRY SOCIETYSTEVE ROBISON, American Foundry Society, Schaumburg, IllinoisASTM INTERNATIONALBRIAN P. COCHRAN, ASTM B07,
15、 Wabash, IndianaMETAL SERVICE CENTER INSTITUTEJULIE S. THANE, Metal Service Center Institute, Chicago, IllinoisNATIONAL ELECTRICAL MANUFACTURERS ASSOCIATIONVINCE BACLAWSKI, National Electrical Manufacturers Association, Rosslyn, VirginiaSAE INTERNATIONAL (SOCIETY OF AUTOMOTIVE ENGINEERS)ROBERT STEFF
16、EN, Raytheon Precision Manufacturing, Dallas, TexasU.S. DEPARTMENT OF COMMERCEFRANK W. GAYLE, National Institute of Standards and Technology, Gaithersburg, MarylandU.S. DEPARTMENT OF THE NAVYCARL LEVANDUSKY, Naval Air Warfare Center Aircraft Division, Lakehurst, New JerseyU.S. DEPARTMENT OF THE AIRF
17、ORCELARRY PERKINS, US Airforce Systems Support Division, Dayton, OhioANSI H35.22013ForewordThis Standard is a revision of “American National Standard Dimensional Tolerances for Aluminum Mill Products” issued in 2009 (ANSI H35.2-2009).The tolerances included in this Standard were developed by the Tec
18、hnical Committee of The Aluminum Association. They are broadly accepted both within the aluminum industry itself and by users of the metal. They are the basis of the dimensional tolerances specified in U.S. government, technical society, and other specifications for aluminum products. They represent
19、 the maximum deviation from specified dimensions that may be expected in any individual piece. For most pieces the deviation from specified dimensions will be less than the tolerance shown.Work on the tolerances began in The Aluminum Association in 1949, five years before its Technical Committee was
20、 established. In that year a special committee was appointed by the Associations Extruded Products Division to develop drafting standards for these products. One of the committees assignments was to develop standard tolerances for aluminum extrusions. The committee completed its work later in 1949,
21、and the Association issued the first edition of its Drafting Standards for Extruded and Tubular Products, including the tolerances, in October of that year.By 1954, the Associations technical activities had grown to the point that a standing Technical Committee was needed. One of the first jobs unde
22、rtaken by this committee was the compilation of mechanical property data for commonly used aluminum alloys and dimensional tolerances for other aluminum mill products. This work was completed later in 1954, and the resulting data were published in the first edition of the Associations “Standards for
23、 Aluminum Mill Products” in June 1955. Successive editions of the “Standards for Aluminum Mill Products” have been revised to include new data and to keep the manual abreast of industry advances. In 1968 the title was changed to “Aluminum Standards and Data” to reflect the adoption of a revised form
24、at.Many refinements have been made in the tolerances as experience was gained in their use. In addition, tolerances have been developed for products not covered initially, and the data have been extended to embrace the larger sizes now being produced. All of these additions and refinements have been
25、 incorporated into this Standard. Included also are definitions of the various products as given in “Aluminum Standards and Data” published by The Aluminum Association, and standard limits for expressing the tolerances.This Standard was originally developed and subsequently revised using the “canvas
26、s” method and published under the proprietary sponsorship of The Aluminum Association. At the request of The Aluminum Association, the establishment of Standards Committee H35 on Aluminum and Aluminum Alloys was authorized by the American National Standards Institute on 17 February 1970, with the As
27、sociation serving as Secretariat.The 1971 revision of ANSI H35.2 was the first revision developed by Standards Committee H35, under the “Stan-dards Committee” procedures, and the 1972, 1975, 1978, and 1982 revisions were developed under the auspices of that Committee.Standards Committee H35 was tran
28、sferred to an Accredited Standards Committee on December 28, 1983, and this revision was developed under the Accredited Standards Committee method.This latest (2013) revision consists of modification to the column heading for extruded and drawn pipe to harmonize with ANSI/ASME standard; editorial co
29、rrections and clarifications to tolerance table for drawn tube; clarification on toler-ance calculation for wall thickness (eccentricity) of extruded tube; editorial corrections and clarifications to table headings and footnotes.6ANSI H35.220131. DefinitionsBarA solid wrought product that is long in
30、 relation to its cross section which is square or rectangular (excluding plate and flattened wire) with sharp or rounded corners or edges, or is a regular hexagon or octagon, and in which at least one perpendicular distance between parallel faces is 0.375 inch or greater.Fin StockCoiled sheet or foi
31、l in specific alloys, tempers, and thickness ranges suitable for manufacture of fins for heat-exchanger applications.FoilGenerally, a rolled product rectangular in cross section of thickness equal to or less than 0.0079 inch (Formerly 0.006 inch, changed to 0.0079 inch for international harmonizatio
32、n). There is an overlap in the thickness range 0.006-0.0079 inch defined for foil and sheet. Foil products in this gage range are supplied to foil product specifications.Forging StockA wrought or cast rod, bar or other section suitable for forging.PipeTube in standardized combinations of outside dia
33、meter and wall thickness, commonly designated by “Nominal Pipe Sizes” and “ANSI Schedule Numbers.”(Note: Larger sizes usually greater than 1 inch are typically extruded while smaller sizes are typically drawn.)PlateA rolled product that is rectangular in cross section and with thickness not less tha
34、n 0.250 inch with sheared or sawed edges.Tread PlateSheet or plate having a raised figured pattern on one surface to provide improved traction.ProfileA wrought product that is long in relation to its cross-sectional dimensions which is of a form other than that of sheet, plate, rod, bar, tube, wire
35、or foil.Structural ProfileA profile in certain standard alloys, tempers, sizes, and sections, such as angles, channels, tees, zees, I-beams, and H-sections, commonly used for structural purposes. For channels and I-beams there are two standards, namely Aluminum Association Standard and American Stan
36、dard.RodA solid wrought product that is long in relation to its circular cross section, which is not less than 0.375 inch diameter.ShapeThis term is no longer recommended. The term “Profile” is preferred. See “Profile.”SheetGenerally, a rolled product that is rectangular in cross section with thickn
37、ess greater than 0.006 inch and less than 0.250 inch and with slit, sheared or sawed edges. There is an overlap in the thickness range of 0.006-0.0079 inch defined for foil and sheet. Sheet products in this gage range are supplied to sheet product specifications.Alclad SheetComposite sheet comprised
38、 of an aluminum alloy core having on both surfaces (if on one side only, Alclad One Side Sheet) a metallurgically bonded aluminum or aluminum alloy coating that is anodic to the core, thus electrolytically protecting the core against corrosion.Brazing SheetSheet of a brazing alloy, or sheet clad wit
39、h a brazing alloy on one or both sides.Duct SheetCoiled or flat sheet in specific tempers, widths and thicknesses, suitable for duct applications.TubeA hollow wrought product that is long in relation to its cross section, which is symmetrical and is round, a regular hexagon or octagon, elliptical, o
40、r square or rectangular with sharp or rounded corners, and that has uniform wall thickness except as affected by corner radii.Heat-Exchanger TubeA tube for use in apparatus in which fluid inside the tube will be heated or cooled by fluid outside the tube. The term usually is not applied to coil tube
41、 or tubes for use in refrigerators or radiators.(Note: This product is typically seamless drawn tube.)Welded TubeA tube produced by forming and seam-welding sheet longitudinally.WireA solid wrought product that is long in relation to its cross section, which is square or rectangular with sharp or ro
42、unded corners or edges, or is round, hexagonal, or octagonal, and whose diameter or greatest perpendicular distance between parallel faces is less than 0.375 inch.2. Standard Limits for Expressing Tolerances2.1 Standard limits for expressing the tolerances depend on the type of instrument ordinarily
43、 used in measuring the particular dimension. Where instruments permitting the required degree of accuracy generally are used, the tolerances are expressed in decimals as follows (except for foil):Tolerance less than 0.005 in. .Multiple of 0.0005Tolerance of 0.005 in. and greater 0.XXXFor measurement
44、s commonly made with instruments not permitting such accuracy, the tolerances are expressed in fractions.2.2 Rounding For purposes of determining conformance to the dimensional tolerances, a measured value is not rounded off. To determine applicable limits when a dimension is specified to more decim
45、al places than are used in these standards, it shall be rounded off to the same number of places in conformance with ASTM E29, Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications.American National Standard Dimensional Tolerances for Aluminum Mill
46、Products7ANSI H35.220133. Section intentionally blank4. Section intentionally blank5. Section intentionally blank6. Section intentionally blank8ANSI H35.220139Aluminum Mill Products7. Sheet and PlateTables 7.1 7.6 intentionally blankANSI H35.2201310Dimensional Tolerances forTABLE 7.7a Sheet and Plat
47、e Thickness Tolerances Q(Applicable to All Alloys Not Included in the Aerospace Alloys Table 7.7b or Not Specified for Aerospace Applications)NOTE: ALSO APPLICABLE TO ALLOYS WHEN SUPPLIED AS ALCLAD.SPECIFIED SPECIFIED WIDTHin.THICKNESS, Up thru Over 39.37 Over 59.06 Over 78.74 Over 98.43 Over 118.11
48、 Over 137.80 Over 157.48 in. 39.37 Thru 59.06 Thru 78.74 Thru 98.43 Thru 118.11 Thru 137.80 Thru 157.48 Thru 177.17Over Thru TOLERANCESin. plus and minus0.0059 0.010 0.0010 0.0015 . . . . . . . . . . . .0.010 0.016 0.0010 0.0015 . . . . . . . . . . . .0.016 0.025 0.0015 0.0020 0.0030 0.0035 . . . .
49、. . . .0.025 0.032 0.0020 0.0025 0.0035 0.0040 . . . . . . . .0.032 0.039 0.0020 0.0030 0.0035 0.0045 0.006 . . . . . .0.039 0.047 0.0025 0.0035 0.0045 0.006 0.007 0.008 . . . .0.047 0.063 0.0030 0.0035 0.0050 0.006 0.007 0.009 . . . .0.063 0.079 0.0035 0.0040 0.006 0.007 0.008 0.010 . . . .0.079 0.098 0.0035 0.0045 0.006 0.007 0.009 0.011 . . . .0.098 0.126 0.0045 0.006 0.007 0.009 0.011 0.013 . . . .0.126 0.158 0.006 0.007 0.009 0.011 0.013 0.015 . . . .0.158 0.197 0.007 0.009 0.011 0.013 0.015 0.018 . . .
