ASTM B997 - 16
Standard Specification for Zinc-Aluminum Alloys in Ingot Form for Hot-Dip Coatings
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Abstract
This specification covers three types of zinc-aluminum (Zn-Al) alloys in ingot form for re-melting for use in the production of hot-dip coatings on steel: Type 5 (95/5 Zn/Al), Type 10 (90/10 Zn/Al), and Type 15 (85/15 Zn/Al). Requirements prescribed by this specification cover ordering information; chemical, physical, and mechanical requirements; sampling for determination of chemical composition; methods for chemical analysis; material and manufacturing requirements; dimensions, mass, shapes, and sizes; workmanship, finish, and appearance; inspection and certification; product and package marking; and packaging and preparation for delivery.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
1.1 This specification covers certain zinc-aluminum (Zn-Al) alloys in ingot form for re-melting for use in the production of hot-dip coatings on steel. Alloy compositions are specified below and in Table 1.
| ASTM | Common | UNS |
| Type 5 | 95/5 Zn/Al | to be assigned |
| Type 10 | 90/10 Zn/Al | to be assigned |
| Type 15 | 85/15 Zn/Al | to be assigned |
Note 1: The zinc-aluminum alloys in Specification B997 are intended to be used primarily to create a molten zinc-aluminum bath and differ from the master alloys in Specification B860 which are intended primarily to adjust the concentration of certain elements in molten zinc galvanizing baths.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
B750 Specification for GALFAN
B860 Specification for Zinc Master Alloys for Use in Hot Dip Galvanizing
B899 Terminology Relating to Non-ferrous Metals and Alloys
B949 Specification for General Requirements for Zinc and Zinc Alloy Products
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys
E1277 Test Method for Analysis of Zinc-5 % Aluminum-Mischmetal Alloys by ICP Emission Spectrometry
ISO Standards
ISO 3815-1 Zinc and zinc alloys Part 1: Analysis of solid samples by optical emission spectrometry ISO 3815-2ICS Code
ICS Number Code 77.150.60 (Lead, zinc and tin products)
UNSPSC Code
UNSPSC Code 30262904(Zinc ingot)
Referencing This Standard
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DOI: 10.1520/B0997-16
Citation Format
ASTM B997-16, Standard Specification for Zinc-Aluminum Alloys in Ingot Form for Hot-Dip Coatings, ASTM International, West Conshohocken, PA, 2016, www.astm.org
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