ASTM-A929 Standard Specification for Steel Sheet, Metallic-Coated by the Hot-Dip Process for Corrugated Steel Pipe

ASTM-A929 - 2018 EDITION - CURRENT -- See the following: ASTM-A444 ASTM-A806 ASTM-A819 ASTM-A916 ASTM-A928/A928M
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This specification covers steel sheets used in the manufacture 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. The Zn-5A1-MM coating is available in two coating classes, the Class A which are minimized coating structure and Class B which are regular coating structure. The base metal cast or product analyses shall conform to the required chemical compositions for sulfur, and sum of carbon, manganese, phosphorus, sulfur and silicon. The zinc coating, zinc-aluminum-mischmetal alloy coating, aluminum-zinc alloy coating, aluminum coating type 2 and aluminum coating type 1 shall conform to the required coating bath composition. The metallic coating shall conform to the required mechanical properties such as tensile strength, yield strength and elongation.

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Scope

1.1 This specification covers steel sheet used in the manufacture 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 specification.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

coatings—aluminum; coatings—metallic; coatings—zinc; coatings—zinc-5 % aluminum-Mischmetal; coatings—55 % aluminum-zinc alloy; corrugated steel pipe; pipe—corrugated steel; steel sheet—aluminum coated; steel sheet—hot-dip coated; steel sheet—metallic coated; steel sheet—zinc coated; steel sheet—zinc-5 % aluminum-Mischmetal alloy coated; steel sheet—55 % aluminum-zinc alloy coated;

To find similar documents by ASTM Volume:

01.06 (Coated Steel Products)

To find similar documents by classification:

77.140.50 (Flat steel products and semi-products Including plate, sheet and strip Steel strips for springs, see 77.140.25)

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Document Number

ASTM-A929/A929M-18

Revision Level

2018 EDITION

Status

Current

Modification Type

Revision

Publication Date

May 1, 2018

Document Type

Specification

Page Count

5 pages

Committee Number

A05.17