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ASTM A924/A924M-99

Historical Revision

Standard Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process

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1.1 This specification covers the general requirements that, unless otherwise specified in the product specification, apply to steel sheet in coils and cut lengths, metallic-coated on continuous lines by the hot-dip process. The product is intended for applications requiring corrosion resistance and may require specific strength levels, heat resistance, paintability, or formability, or a combination thereof.

1.2 Subject to individual product specification provisions, steel sheet may be available in commercial quality (CQ), lock-forming quality (LFQ), drawing quality (DQ), drawing quality special killed (DQSK), structural quality (SQ), and high-strength, low-alloy (HSLA). Steel sheet can be produced with the following metallic coatings. Specific information on each of the following is contained in the individual product specification:

1.2.1 Zinc or zinc-iron alloy coated,

1.2.2 Zinc-5% aluminum alloy coated,

1.2.3 55% aluminum-zinc alloy coated,

1.2.4 Aluminum-coated, and

1.2.5 Terne (lead-tin alloy) coated.

1.3 Products covered by this general requirements specification are described in the following product standards: Specifications A308; A463/A463M; A653/A 653M; A755/A755M; A792/A792M; A819; A875/A875M; and A929/A929M.

1.4 Metallic-coated steel sheet is produced to various coating designations, as shown in the individual product specifications. Except for differentially coated sheet, the coating is always expressed as the total coating of both surfaces.

1.5 In case of any conflict in requirements, the requirements of the individual product specifications shall prevail over those of this general specification.

1.6 The purchaser may specify additional requirements that do not negate any of the provisions of this general specification or of the individual product specifications. Such additional requirements, the acceptance of which are subject to negotiation with the supplier, should be included in the order information.

1.7 For purposes of determining conformance with this specification and the various product specifications referenced in 1.3, values shall be rounded to the nearest unit in the right-hand place of figures used in expressing the limiting values (except to the nearest 5 MPa for SI strength values) in accordance with the rounding method of Practice E29.

1.8 Metallic-coated steel sheet covered by this specification is produced to thickness requirements expressed to 0.001 in. [0.01 mm] for both coils and cut lengths. The thickness is the total of the base steel and the coating.

1.9 The values stated in inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.

1.10 This specification and some of the applicable product specifications are expressed in both inch-pound and SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the product shall be furnished to inch-pound units.


SDO ASTM: ASTM International
Document Number A924
Publication Date April 10, 1999
Language en - English
Page Count 9
Revision Level 99
Supercedes
Committee A05.11
Publish Date Document Id Type View
Nov. 1, 2022 A0924_A0924M-22A Revision
April 1, 2022 A0924_A0924M-22 Revision
Sept. 1, 2020 A0924_A0924M-20 Revision
Sept. 1, 2019 A0924_A0924M-19 Revision
Nov. 1, 2018 A0924_A0924M-18 Revision
Sept. 1, 2017 A0924_A0924M-17A Revision
May 1, 2017 A0924_A0924M-17 Revision
June 1, 2016 A0924_A0924M-16AE01 Revision
June 1, 2016 A0924_A0924M-16A Revision
May 1, 2016 A0924_A0924M-16 Revision
Oct. 1, 2014 A0924_A0924M-14E01 Revision
Oct. 1, 2014 A0924_A0924M-14 Revision
April 1, 2013 A0924_A0924M-13 Revision
Nov. 1, 2010 A0924_A0924M-10A Revision
June 1, 2010 A0924_A0924M-10 Revision
Dec. 1, 2009 A0924_A0924M-09A Revision
May 1, 2009 A0924_A0924M-09 Revision
Nov. 1, 2008 A0924_A0924M-08A Revision
June 1, 2008 A0924_A0924M-08 Revision
Jan. 1, 2007 A0924_A0924M-07 Revision
June 15, 2006 A0924_A0924M-06 Revision
May 1, 2004 A0924_A0924M-04 Revision
April 10, 1999 A0924_A0924M-99 Revision