ASTM B852-14 - 1.10.2014
 
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.

(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.

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) 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

E536-23

Standard Test Methods for Chemical Analysis of Zinc and Zinc Alloys

A653/A653M-25a

Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process (Includes all amendments and changes 12/5/2025).

B897-23

Standard Specification for Configuration of Zinc and Zinc Alloy Jumbo, Block, Half Block, and Slab Ingot

B899-25

Standard Terminology Relating to Non-ferrous Metals and Alloys

B949-23

Standard Specification for General Requirements for Zinc and Zinc Alloy Products

ISO 3815-2

E88-25

Standard Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition

E527-23

Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

E634-23

Standard Practice for Sampling Zinc and Zinc Alloys for Analysis by Spark Atomic Emission Spectrometry

ISO 3815-1

Zinc and zinc alloys Part 1: Analysis of solid samples by optical emission spectrometry

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications