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ASTM B852-08

Historical Revision

Standard Specification for Continuous Galvanizing Grade (CGG) Zinc Alloys for Hot-Dip Galvanizing of Sheet Steel

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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 B 852, 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 E 527.

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 E 29.

C Lead and Iron levels of 0.01 % max and 0.01 % max respectively are allowed for CGG alloys produced from secondary zinc.


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.


SDO ASTM: ASTM International
Document Number B852
Publication Date Nov. 1, 2008
Language en - English
Page Count 4
Revision Level 08
Supercedes
Committee B02.04
Publish Date Document Id Type View
May 1, 2016 B0852-16E01 Revision
May 1, 2016 B0852-16 Revision
Oct. 1, 2014 B0852-14 Revision
May 1, 2012 B0852-12 Revision
Nov. 1, 2008 B0852-08 Revision
May 1, 2007 B0852-07 Revision
May 10, 2001 B0852-01 Revision
May 10, 2001 B0852-00A Revision
Oct. 1, 2022 B0852-16R22 Reaffirmation