ASTM B852-12
(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 and 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 Other alloy compositions not included in B852, and as may be agreed upon between the producer and the user, may be used for continuous galvanizing.
1.3 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.
1.4 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 Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.
TABLE 1 Chemical Requirements GradeA
(UNS)Composition,% NominalRangeB AluminumLeadAluminum LeadC Z80310 0.25...0.22 to 0.280.007 max Z80411 0.35...0.31 to 0.390.007 max Z80511 0.45...0.40 to 0.500.007 max Z80531 0.450.020.40 to 0.500.01 to 0.03 Z80610 0.55...0.49 to 0.610.007 max Z80710 0.65...0.58 to 0.720.007 max Z80810 0.75...0.67 to 0.830.007 max Z809101.00...0.90 to 1.100.007 max Impurities, %: IronC0.0075 max Cadmium0.01 max Copper0.01 max Other Elementstotal of 0.01 max Zinc: balance by difference
A UNS numbers in conformance with Practice E527.
B For purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of Practice E29.
C Lead and Iron levels of 0.01 % max and 0.01 % max respectively are allowed for CGG alloys produced from secondary zinc.
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Designation:B852 −12
StandardSpecification for
Continuous Galvanizing Grade (CGG) Zinc Alloys for Hot-
1
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* E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.1 This specification covers grades of zinc alloys, com-
E88 Practice for Sampling Nonferrous Metals and Alloys in
monly known as Continuous Galvanizing Grade (CGG) alloys
Cast Form for Determination of Chemical Composition
that contain aluminum, or aluminum and lead and that are used
E527 Practice for Numbering Metals and Alloys in the
in continuous hot-dip galvanizing of steel sheet. The compo-
Unified Numbering System (UNS)
sitions for CGG grades made from primary zinc are shown in
E536 Test Methods for Chemical Analysis of Zinc and Zinc
Table 1. Exceptions for grades made from secondary zinc are
Alloys
found in footnote C.
E634 Practice for Sampling of Zinc and Zinc Alloys by
1.2 Other alloy compositions not included in B852, and as
Spark Atomic Emission Spectrometry
maybeagreeduponbetweentheproducerandtheuser,maybe 3
2.2 ISO Standards:
used for continuous galvanizing.
ISO 3815-1 Zinc and zinc alloys — Part 1:Analysis of solid
1.3 The values stated in inch-pound units are to be regarded samples by optical emission spectrometry
ISO 3815-2 Zinc and zinc alloys — Part 2: Analysis by
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only inductively coupled plasma optical emission spectrometry
and are not considered standard.
3. Terminology
1.4 This standard does not purport to address all of the
3.1 Terms shall be defined in accordance with Terminology
safety concerns, if any, associated with its use. It is the
B899.
responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate
4. Ordering Information
Material Safety Data Sheet (MSDS) for this product/material
4.1 Orders for zinc alloy ingot under this specification shall
as provided by the manufacturer, to establish appropriate
include information as specified in Specification B949, Section
safety and health practices, and determine the applicability of
4.
regulatory limitations prior to use.
5. Materials and Manufacture
2. Referenced Documents
2
5.1 The producer shall use care that each shipment of CGG
2.1 ASTM Standards:
alloy be as uniform in quality as possible.
B897 Specification for Configuration of Zinc and ZincAlloy
Jumbo Block and Half Block Ingot
6. Chemical Requirements
B899 Terminology Relating to Non-ferrous Metals and Al-
6.1 CGG alloy shall conform to the requirements of Table 1
loys
asdeterminedbychemicalanalysisbytheproduceronsamples
B949 Specification for General Requirements for Zinc and
taken at his plant (see Section 9).
Zinc Alloy Products
6.2 Chemical requirement procedures shall be in compli-
1 ance with the provisions of Specification B949, Section 5.2.
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
7. Size and Shape
B02.04 on Zinc and Cadmium.
Current edition approved May 1, 2012. Published August 2012. Originally
7.1 CGG alloy may be ordered as either jumbos, blocks, or
approved in 1994. Last previous edition approved in 2008 as B852 - 08. DOI:
slabs.
10.1520/B0852-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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B852−12
TABLE 1 Chemical Requirements
9. Sampling for Chemical Analysis
Composition,%
9.1 Sampling procedures shall be in compliance with the
A
Grade
B
Nominal Range
(UNS) provisions of Specification B949, Section 6.
C
Aluminum Lead Aluminum Lead
Z80310 0.25 . 0.22 to 0.28 0.007 max 10. Methods of Chemical Analysis
Z80411 0.35 . 0.31 to 0.39 0.007 max
10.1 The determination of chemical composition shall be
Z80511 0.45 . 0.40 to 0.50 0.007 max
Z80531 0.45 0.02 0.40 to 0.50 0.01 to 0
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B852–08 Designation: B852 – 12
Standard Specification for
Continuous Galvanizing Grade (CGG) Zinc Alloys for Hot-
1
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.
This standard has been approved for use by agencies of the Department of Defense.
1. 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 and that are used in continuous hot-dip galvanizing of steel sheet. The compositions for
CGG grades made from primary zinc are shown inTable 1. Exceptions for grades made from secondary zinc are found in footnote
C.
1.2 Other alloy compositions not included in B852, and as may be agreed upon between the producer and the user, may be used
for continuous galvanizing.
1.3 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.
1.4 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 Material Safety Data
Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and
determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
B897 Specification for Configuration of Zinc and Zinc Alloy Jumbo Block and Half Block Ingot
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 E88
E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys E634
E634 Practice for Sampling of Zinc and Zinc Alloys by Spark Atomic Emission Spectrometry
3
2.2 ISO Standards:
ISO 3815-1 Zinc and zinc alloys — Part 1: Analysis of solid samples by optical emission spectrometry
ISO 3815-2 Zinc and zinc alloys — Part 2: Analysis by inductively coupled plasma optical emission spectrometry
3. Terminology
3.1 Terms shall be defined in accordance with Terminology B899.
4. Ordering Information
4.1Orders for CGG alloy under this specification shall include the following information:
4.1.1Number of ASTM standard, including year of issue,
4.1.2Quantity (weight),
4.1.3Name of material (CGG),
1
This specification is under the jurisdiction ofASTM Committee B02 on Nonferrous Metals andAlloys and is the direct responsibility of Subcommittee B02.04 on Zinc
and Cadmium.
Current edition approved Nov.May 1, 2008.2012. Published December 2008.August 2012. Originally approved in 1994. Last previous edition approved in 20072008 as
B852 - 078. DOI: 10.1520/B0852-08.10.1520/B0852-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B852 – 12
TABLE 1 Chemical Requirements
Composition,%
A
Grade
B
Nominal Range
(UNS)
C
Aluminum Lead Aluminum Lead
Z80310 0.25 . 0.22 to 0.28 0.007 max
Z80411 0.35 . 0.31 to 0.39 0.007 max
Z80511 0.45 . 0.40 to 0.50 0.007 max
Z80531 0.45 0.02 0.40 to 0.50 0.01 to 0.03
Z80610 0.55 . 0.49 to 0.61 0.007 max
Z80710 0.65 . 0.58 to 0.72 0.007 max
Z80810 0.75 . 0.67 to 0.83 0.007 max
Z80910 1.00 . 0.90 to 1.10 0.007 max
C
Impurities, %: Iron 0.0075 max
Cadmium 0.01 max
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