ASTM B852-16(2022)
(Specification)Standard Specification for Continuous Galvanizing Grade (CGG) Zinc Alloys for Hot-Dip Galvanizing of Sheet Steel
Standard Specification for Continuous Galvanizing Grade (CGG) Zinc Alloys for Hot-Dip Galvanizing of Sheet Steel
ABSTRACT
This specification covers grades of zinc alloys, commonly known as continuous galvanizing grade (CGG) alloys that contain aluminum, or aluminum and lead and that are used in continuous hot-dip galvanizing of steel sheet. CGG alloy shall be tested and conform to the chemical composition requirements as determined by chemical analysis on samples taken. CGG alloy castings shall be free of undue surface oxide, adhering foreign matter, and any flash that would interfere with handling and use. Samples obtained during casting, drilling or sawing shall be analyzed individually and the average of the individual determinations for the samples from the lot shall be reported as the analysis of the lot.
SCOPE
1.1 This specification covers grades of zinc alloys, commonly known as Continuous Galvanizing Grade (CGG) alloys that contain aluminum, or aluminum and lead, that are used in continuous hot-dip galvanizing of steel sheet. The compositions for CGG grades made from primary zinc are shown in Table 1. Exceptions for grades made from secondary zinc are found in footnote C.
1.2 CGG alloys specified in Specification B852 are used in continuous hot-dip galvanizing of steel sheet to produce product, as specified in Specification A653/A653M.
1.3 Other alloy compositions not included in Specification B852, and as may be agreed upon between the producer and the user, may be used for continuous galvanizing.
1.4 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.
1.5 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.
1.6 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.
General Information
Relations
Standards Content (Sample)
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.
Designation:B852 −16 (Reapproved 2022)
Standard Specification for
Continuous Galvanizing Grade (CGG) Zinc Alloys for Hot-
Dip Galvanizing of Sheet Steel
This standard is issued under the fixed designation B852; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2.1 ASTM Standards:
1.1 This specification covers grades of zinc alloys, com-
A653/A653M Specification for Steel Sheet, Zinc-Coated
monly known as Continuous Galvanizing Grade (CGG) alloys
(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)
that contain aluminum, or aluminum and lead, that are used in
by the Hot-Dip Process
continuous hot-dip galvanizing of steel sheet. The composi-
B897 Specification for Configuration of Zinc and ZincAlloy
tions for CGG grades made from primary zinc are shown in
Jumbo, Block, Half Block, and Slab Ingot
Table 1. Exceptions for grades made from secondary zinc are
B899 Terminology Relating to Non-ferrous Metals and Al-
found in footnote C.
loys
1.2 CGG alloys specified in Specification B852 are used in
B949 Specification for General Requirements for Zinc and
continuous hot-dip galvanizing of steel sheet to produce Zinc Alloy Products
product, as specified in Specification A653/A653M. E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.3 Other alloy compositions not included in Specification
E88 Practice for Sampling Nonferrous Metals and Alloys in
B852, and as may be agreed upon between the producer and
Cast Form for Determination of Chemical Composition
the user, may be used for continuous galvanizing.
E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
1.4 The values stated in inch-pound units are to be regarded
E536 Test Methods for Chemical Analysis of Zinc and Zinc
as standard. The values given in parentheses are mathematical
Alloys
conversions to SI units that are provided for information only
E634 Practice for Sampling of Zinc and Zinc Alloys for
and are not considered standard.
Analysis by Spark Atomic Emission Spectrometry
1.5 This standard does not purport to address all of the
2.2 ISO Standards:
safety concerns, if any, associated with its use. It is the
ISO 3815-1 Zinc and zinc alloys — Part 1:Analysis of solid
responsibility of the user of this standard to become familiar
samples by optical emission spectrometry
with all hazards including those identified in the appropriate
ISO 3815-2 Zinc and zinc alloys — Part 2: Analysis by
Safety Data Sheet (SDS) for this product/material as provided
inductively coupled plasma optical emission spectrometry
by the manufacturer, to establish appropriate safety, health,
and environmental practices, and determine the applicability
3. Terminology
of regulatory limitations prior to use.
3.1 Terms shall be defined in accordance with Terminology
1.6 This international standard was developed in accor-
B899.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Ordering Information
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical 4.1 Orders for zinc alloy ingot under this specification shall
Barriers to Trade (TBT) Committee. include information as specified in Specification B949.
1 2
This specification is under the jurisdiction of ASTM Committee B02 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
B02.04 on Zinc and Cadmium. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2022. Published November 2022. Originally the ASTM website.
ɛ1 3
approved in 1994. Last previous edition approved in 2016 as B852 – 16 . DOI: Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/B0852-16R22. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B852−16 (2022)
TABLE 1 Chemical Requirements
dimensions, and location of holes or openings shall be as
Composition,% agreed upon between the producer and the customer.
A
Grade
B
Nominal Range 7.1.3 Slabs—smaller castings of zinc or zinc alloy designed
(UNS)
C
Aluminum Lead Aluminum Lead for manual handling, but often handled by mechanical equip-
Z80310 0.25 . 0.22 to 0.28 0.007 max ment.Aslab usually weig
...
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