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ANSI H35.2-2024.pdf American National Standard Dimensional Tolerances for Aluminum Mill Products Foreword This Standard is a revision of “American National Standard Dimensional Tolerances for Aluminum Mill Products” issue d in 2017 (ANSI H35.2-2017). The tolerances included in this Standard were developed by the Technical 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 toler
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ANSI H35.2-20245.2-2024
Revision of H35.2-2017Revision of H35.2-2017
American National Standard
Dimensional Tolerances for
Aluminum Mill Products

American National Standard
Approval of an American National Standard requires verification by the American National Standards Insti-
tute (ANSI) that the requirements for due process, consensus, 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 simple 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 pre-
clude anyone, whether he has approved the standards or not, from manufacturing, 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 Standard. Moreover, no person shall have the right or authority to issue an inter-
pretation 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 this
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CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time.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 rearm, revise, or withdraw this
standard no later than ve years from the date of approval. Purchasers 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 H35.2-2024-2024
Revision of H35.2-2017Revision of H35.2-2017
American National Standard Dimensional
Tolerances for Aluminum Mill Products
Secretariat
The Aluminum Association, Inc.
1400 Crystal Drive, Suite 4301400 Crystal Drive, Suite 430
Arlington, Virginia 22202Arlington, Virginia 22202
Approved January 11, 2024Approved January 11, 2024
American National Standards Institute
© Copyright © Copyright 20242024 The Aluminum Association, Inc. The Aluminum Association, Inc.
All rights reservedAll rights reserved. Unauthorized reproduction, distribution, creation of derivative works, and/or sale of this work is prohibited.. Unauthorized reproduction, distribution, creation of derivative works, and/or sale of this work is prohibited.


ANSI H35.2–20242024
Contents
1. Denitions ....................................................... . . . . . . . . . . . . . 7
2. Standard Limits for Expressing Tolerances ....................................... . . 8
3. Applicable LimitsApplicable Limits ............................................................... 9
4. Section Intentionally Blank ....................................................... 9
5. Section Intentionally Blank ....................................................... 9
6. Section Intentionally Blank ....................................................... 9
7. Sheet and Plate ................................................................ 9
Sheet and Plate—Tables 7.7a–7.18 ........................................... 10
Special Finished Sheet and Plate Products—Tables 7.26–7.43 .................... 14
Commercial Roong and Siding—Tables 7.26–7.30 ............................. 14
Duct Sheet—Tables 7.31–7.34 .......................................... 15
Tread Sheet and Plate—Tables 7.36–7.43 ................................. 15
8. Fin Stock ..................................................................... 17
Fin Stock—Tables 8.2–8.3 ................................................... 17
9. Foil . . . . . . .................................................................. . . . 18
Foil—Tables 9.2–9.24 ...................................................... 18
Unmounted Foil—Tables 9.2–9.8 ........................................ 18
Laminated Foil—Tables 9.9–9.16 ........................................ 19
Printed Foil—Tables 9.17–9.24 .......................................... 20
10. Wire, Rod, and Bar—Rolled or Cold Finished ......................................... 21
Wire, Rod and Bar—Rolled or Cold-Finished—Tables 10.5–10.20 .................. 21
11. Wire, Rod, Bar and Proles—Extruded .............................................. 24
Wire, Rod, Bar and Proles—Tables 11.2–11.14 ................................. 24
12. Tube and Pipe .................................................................. 33
Tube and Pipe—Tables 12.2–12.55 ........................................... 34
Extruded Tube—Tables 12.2–12.14 ...................................... 34
Pipe—Tables 12.10, 12.13, 12.29, 12.3112.10, 12.13, 12.29, 12.31,12.49 –12.55 ....................... 37
Extruded Coiled Tube—Tables 12.16–12.18 ............................... 38
Drawn Tube—Tables 12.20–12.32 ....................................... 39
Heat Exchanger Tube—Tables 12.34–12.39 ............................... 42
Welded Tube—Tables 12.41–12.47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
13. Structural Proles .............................................................. 48
14. Forging Stock .................................................................. 49
Forging Stock—Tables 14.1–14.4 ............................................ 49
15. Forgings ..................................................................... 50
Hand Forgings—Table 15.3 .................................................. 50
16. Electrical Conductors ........................................................... 51
Electrical Conductors—Tables 16.7–16.35 ..................................... 51
Wire, Rod and Bar—Rolled or Cold Finished—Tables 16.7–16.21 .............. 51
Extruded Rod and Bar—Tables 16.22–16.29 ............................... 53
Structural Proles—Table 16.30 (see Section 11)Structural Proles—Table 16.30 (see Section 11) ........................... ........................... 55 55
Tube and Pipe—Table 16.31 (see Section 12) Tube and Pipe—Table 16.31 (see Section 12) .............................. .............................. 55 55
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