ASTM B852-16
(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. (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.(D) UNS Z80910 continuous galvanizing grade (CGG) alloy is primarily used to change the galvanizing pot chemistry to transition from galvanneal to galvanized production.(E) Lead and Iron levels produced for secondary zinc are each 0.01 %.
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 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 and health practices, and determine the applicability of regulatory limitations prior to use.
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Designation:B852 −16
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.
1. Scope* by the Hot-Dip Process
B897 Specification for Configuration of Zinc and ZincAlloy
1.1 This specification covers grades of zinc alloys, com-
Jumbo, Block, Half Block, and Slab Ingot
monly known as Continuous Galvanizing Grade (CGG) alloys
B899 Terminology Relating to Non-ferrous Metals and Al-
that contain aluminum, or aluminum and lead, that are used in
loys
continuous hot-dip galvanizing of steel sheet. The composi-
B949 Specification for General Requirements for Zinc and
tions for CGG grades made from primary zinc are shown in
Zinc Alloy Products
Table 1. Exceptions for grades made from secondary zinc are
E29 Practice for Using Significant Digits in Test Data to
found in footnote C.
Determine Conformance with Specifications
1.2 CGG alloys specified in Specification B852 are used in
E88 Practice for Sampling Nonferrous Metals and Alloys in
continuous hot-dip galvanizing of steel sheet to produce
Cast Form for Determination of Chemical Composition
product, as specified in Specification A653/A653M.
E527 Practice for Numbering Metals and Alloys in the
1.3 Other alloy compositions not included in B852, and as Unified Numbering System (UNS)
E536 Test Methods for Chemical Analysis of Zinc and Zinc
maybeagreeduponbetweentheproducerandtheuser,maybe
used for continuous galvanizing. Alloys
E634 Practice for Sampling of Zinc and Zinc Alloys by
1.4 The values stated in inch-pound units are to be regarded
Spark Atomic Emission Spectrometry
as standard. The values given in parentheses are mathematical
3
2.2 ISO Standards:
conversions to SI units that are provided for information only
ISO 3815-1 Zinc and zinc alloys — Part 1:Analysis of solid
and are not considered standard.
samples by optical emission spectrometry
1.5 This standard does not purport to address all of the
ISO 3815-2 Zinc and zinc alloys — Part 2: Analysis by
safety concerns, if any, associated with its use. It is the
inductively coupled plasma optical emission spectrometry
responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate
3. Terminology
Safety Data Sheet (SDS) for this product/material as provided
3.1 Terms shall be defined in accordance with Terminology
by the manufacturer, to establish appropriate safety and health
B899.
practices, and determine the applicability of regulatory limi-
tations prior to use.
4. Ordering Information
4.1 Orders for zinc alloy ingot under this specification shall
2. Referenced Documents
include information as specified in Specification B949.
2
2.1 ASTM Standards:
A653/A653M Specification for Steel Sheet, Zinc-Coated
5. Materials and Manufacture
(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)
5.1 The producer shall use care that each shipment of CGG
alloy be as uniform in quality as possible.
1
This specification is under the jurisdiction of ASTM Committee B02 on
6. Chemical Requirements
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.04 on Zinc and Cadmium.
6.1 CGG alloy shall conform to the requirements of Table 1
CurrenteditionapprovedMay1,2016.PublishedJuly2016.Originallyapproved
asdeterminedbychemicalanalysisbytheproduceronsamples
in 1994. Last previous edition approved in 2014 as B852 – 14. DOI: 10.1520/
taken at his plant (see Section 9).
B0852-16
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
---------------------- Page: 1 ----------------------
B852−16
TABLE 1 Chemical Requirements
shipped in strapped bundles weighing about 2200 lb (one
Composition,% metric ton). Other bundle weights may be as agreed upon
A
Grade
B
Nominal Range between the producer and the customer.
(UNS)
C
Aluminum Lead Aluminum Lead
7.1.4 Other shapes and sizes as may be agreed upon
Z80310 0.25 . 0.22 to 0.28 0.007 max
between the producer and the customer may be cast to the
Z80411 0.35
...
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 − 14 B852 − 16
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.
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, 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 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 Material Safety Data
Sheet (MSDS)(SDS) 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:
A653/A653M Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the
Hot-Dip Process
B897 Specification for Configuration of Zinc and Zinc Alloy Jumbo, Block, Half Block, and Slab 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 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 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.
1
This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.04 on Zinc
and Cadmium.
Current edition approved Oct. 1, 2014May 1, 2016. Published October 2014July 2016. Originally approved in 1994. Last previous edition approved in 20122014 as B852 –
12.14. DOI: 10.1520/B0852-14.10.1520/B0852-16
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 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 − 16
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
D
Z80910 1.00 . 0.90 to 1.10 0.007 max
E
Z80XXX 0.005 . 0.001 to 0.01 0.007 max
C E
Impurities, %: Iron
...
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