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ASTM A929.pdf
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ASTM A929.pdf
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Designation: A 929/A 929M – 01
Standard Specification for
Steel Sheet, Metallic-Coated by the Hot-Dip Process for
Corrugated Steel Pipe
1
This standard is issued under the fixed designation A 929/A 929M; the number immediately following the designation indicates the year
of 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers steel sheet used in the manu-
facture of corrugated steel pipe for storm sewers, culverts,
drains, and similar uses. The sheet is metallic coated by the
hot-dip process. Material for this use is furnished in coils, flat
in cut lengths, and corrugated in cut lengths. Many metallic
coated materials are covered in this material specification.
Users must determine which product best serves their needs.
Five different metallic coatings are included:
1.1.1 Zinc-coated (galvanized),
1.1.2 Zinc-5 % aluminum-Mischmetal (Zn-5Al-MM) alloy
coated,
1.1.3 55 % aluminum-zinc (55Al-Zn) alloy coated,
1.1.4 Aluminum-coated Type 2 (aluminized Type 2), and
1.1.5 Aluminum-coated Type 1 (aluminized Type 1).
1.2 Zinc-coated sheet is available in two coating weights
[masses]. Other metallic coatings are available in one coating
weight [mass] only.
1.3 The values stated in either inch-pound units or SI units
are to be regarded separately as the standard. Within the text,
the SI units are shown in brackets. The values stated in each
system are not equivalents; therefore, each system must be
used independently of the other. Combining values from the
two systems may result in nonconformance with the specifi-
cation.
2. Referenced Documents
2.1 ASTM Standards:
A 90/A 90M Test Method for Weight [Mass] of Coating on
Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
2
A 428/A 428M Test Method for Weight [Mass] of Coating
on Aluminum-Coated Iron or Steel Articles
2
A 902 Terminology Relating to Metallic Coated Steel Prod-
ucts
2
A 924/A 924M Specification for General Requirements for
Steel Sheet, Metallic-Coated by the Hot-Dip Process
2
B 750 Specification for Zinc-5 % Aluminum-Mischmetal
Alloy (UNS Z38510) in Ingot Form for Hot-Dip Coatings
3
E 29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
4
3. Terminology
3.1 Definitions: For definitions of terms used in this speci-
fication, refer to Terminology A 902. The following definitions
are as stated in that terminology:
3.1.1 fabricator,, n— as related to corrugated metal pipe,
(1) the organization that produces the finished pipe; or (2) for
structural plate pipe, the organization that processes flat sheets
and other items necessary for the field assembly of finished
products.
3.1.2 manufacturer,, n— as related to corrugated metal
pipe, the organization that produces the metal sheet from which
pipe is made.
3.1.3 purchaser,, n—as related to corrugated metal pipe,
the person or agency that purchases the finished pipe.
3.1.4 Discussion—With regard to this specification for sheet
for corrugated steel pipe, the fabricator may also be considered
as the purchaser of the sheet, where that term is used in this
specification. Such interpretation would not restrict the pur-
chaser of the finished pipe from enforcing any provisions of
this specification.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 minimized coating structure,, n—a coating character-
ized by a finer metallurgical coating structure obtained by a
treatment designed to restrict the formation of the normal
coarse grain structure formed during solidification of the
Zn-5Al-MM coating.
3.2.2 regular coating structure,, n—the normal coating
structure resulting from unrestricted grain growth during nor-
mal solidification of the Zn-5Al-MM coating.
3.3 Abbreviations:
3.3.1 Al T2—aluminum-coated Type 2
3.3.2 Al T1—aluminum-coated Type 1
3.3.3 55Al-Zn—55 % aluminum-zinc alloy
3.3.4 Zn—zinc
1
This specification is under the jurisdiction of ASTM Committee A05 on
Metallic Coated Iron and Steel Products and is the direct responsibility of
Subcommittee A05.11 on Sheet Specifications.
Current edition approved Jan. 10, 2001. Published February 2001. Originally
published as A 929/A 929M – 95. Last previous edition A 929/A 929M – 97.
2
Annual Book of ASTM Standards, Vol 01.06.
3
Annual Book of ASTM Standards, Vol 02.04.
4
Annual Book of ASTM Standards, Vol 14.02.
1
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
Copyright ASTM International
Provided by IHS under license with ASTM
Not for Resale
No reproduction or networking permitted without license from IHS
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