ASTM B327-13a
(Specification)Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
ABSTRACT
This specification covers aluminum-base and zinc-base master alloys used to make zinc die-casting alloys. The material may be made by any suitable process. The material covered by this specification shall be of uniform quality and shall be free of dross, flux, or other harmful contamination. If the material is in shot form, it shall be sound, uniform size, and free of a heavily oxidized surface coating, stringers, and moisture. Aluminum-base master alloys (hardeners) shall be tested and conform to the required chemical composition for aluminum, copper, iron, silicon, manganese, magnesium, zinc, chromium, nickel, tin, lead, and cadmium. Zinc-base master alloys shall conform to the color code requirements and to the required alloy composition for aluminum, magnesium, iron, copper, lead, cadmium, tin, and zinc. The weight of jumbo ingots shall conform to the required weight limits.
SCOPE
1.1 This specification covers aluminum–base and zinc–base master alloys used to make zinc die-casting alloys. Alloy compositions specified for aluminum–base master alloys (hardeners) are designated as shown in Table 1. Alloy compositions specified for the zinc-base master alloys are designated as shown in Table 2.
1.2 Aluminum alloy hardeners are added to Special High Grade zinc (per Specification B6) in the proper alloying ratios, as shown in Table 1, to produce zinc alloys for die casting.
1.3 Zinc-base master alloy is added to Special High Grade zinc (per Specification B6) in the proper alloying ratio, as shown in Table 3, to produce zinc alloy for die casting.
1.4 Master alloys may be supplied in the form of shot, bar, ingot or jumbo ingot as specified by the purchaser.
1.5 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.
1.6 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.
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Designation:B327 −13a
StandardSpecification for
1
Master Alloys Used in Making Zinc Die Casting Alloys
This standard is issued under the fixed designation B327; 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.
2
1. Scope* 2.2 ASTM Standards:
B6 Specification for Zinc
1.1 This specification covers aluminum–base and zinc–base
B275 Practice for Codification of Certain Nonferrous Metals
master alloys used to make zinc die-casting alloys. Alloy
and Alloys, Cast and Wrought
compositionsspecifiedforaluminum–basemasteralloys(hard-
B899 Terminology Relating to Non-ferrous Metals and Al-
eners) are designated as shown in Table 1.Alloy compositions
loys
specified for the zinc-base master alloys are designated as
B908 Practice for the Use of Color Codes for Zinc Casting
shown in Table 2.
Alloy Ingot
B949 Specification for General Requirements for Zinc and
1.2 Aluminum alloy hardeners are added to Special High
Zinc Alloy Products
Grade zinc (per Specification B6) in the proper alloying ratios,
E29 Practice for Using Significant Digits in Test Data to
as shown in Table 1, to produce zinc alloys for die casting.
Determine Conformance with Specifications
1.3 Zinc-base master alloy is added to Special High Grade
E34 Test Methods for Chemical Analysis of Aluminum and
zinc (per Specification B6) in the proper alloying ratio, as
Aluminum-Base Alloys
shown in Table 3, to produce zinc alloy for die casting.
E88 Practice for Sampling Nonferrous Metals and Alloys in
Cast Form for Determination of Chemical Composition
1.4 Master alloys may be supplied in the form of shot, bar,
E527 Practice for Numbering Metals and Alloys in the
ingot or jumbo ingot as specified by the purchaser.
Unified Numbering System (UNS)
E536 Test Methods for Chemical Analysis of Zinc and Zinc
1.5 The values stated in inch-pound units are to be regarded
Alloys
as standard. The values given in parentheses are mathematical
E1251 Test Method for Analysis of Aluminum and Alumi-
conversions to SI units that are provided for information only
num Alloys by Spark Atomic Emission Spectrometry
and are not considered standard.
3
2.3 ISO Standards:
1.6 This standard does not purport to address all of the
ISO 3815-1 Zinc and zinc alloys — Part 1:Analysis of solid
safety concerns, if any, associated with its use. It is the
samples by optical emission spectrometry
responsibility of the user of this standard to become familiar
ISO 3815-2 Zinc and zinc alloys — Part 2: Analysis by
with all hazards including those identified in the appropriate
inductively coupled plasma optical emission spectrometry
Material Safety Data Sheet (MSDS) for this product/material
as provided by the manufacturer, to establish appropriate
3. Terminology
safety and health practices, and determine the applicability of
regulatory limitations prior to use.
3.1 Terms shall be defined in accordance with Terminology
B899.
2. Referenced Documents
3.2 Definitions of Terms Specific to This Standard:
2.1 The following documents of the issue in effect on date
3.2.1 hardener, n—an aluminum-base master alloy added to
of order acceptance form a part of this specification to the
Special High Grade Zinc (SHG) to produce a zinc alloy for die
extent referenced herein: casting.
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 Aug. 1, 2013. Published September 2013. Originally the ASTM website.
3
approved in 1958. Last previous edition approved in 2013 as B327 – 13. DOI: Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/B0327-13A. 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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B327−13a
TABLE 1 Chemical Requirements for Aluminum-Base Master Alloys
NOTE 1—The following applies to all specified limits in this table: For purposes of determining conformance with this specification, the observed value
or calculated value obtained from analysis shall be rounded off “to the nearest unit” in the last right hand place of figures used in expressing the specified
limit, in accordance with the rou
...
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: B327 − 13 B327 − 13a
Standard Specification for
1
Master Alloys Used in Making Zinc Die Casting Alloys
This standard is issued under the fixed designation B327; 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 aluminum–base and zinc–base master alloys used to make zinc die-casting alloys. Alloy
compositions specified for aluminum–base master alloys (hardeners) are designated as shown in Table 1. Alloy compositions
specified for the zinc-base master alloys are designated as shown in Table 2.
1.2 Aluminum alloy hardeners are added to Special High Grade zinc (per Specification B6) in the proper alloying ratios, as
shown in Table 1, to produce zinc alloys for die casting.
1.3 Zinc-base master alloy is added to Special High Grade zinc (per Specification B6) in the proper alloying ratio, as shown
in Table 3, to produce zinc alloy for die casting.
1.4 Master alloys may be supplied in the form of shot, bar, ingot or jumbo ingot as specified by the purchaser.
1.5 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.
1.6 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
2.1 The following documents of the issue in effect on date of order acceptance form a part of this specification to the extent
referenced herein:
2
2.2 ASTM Standards:
B6 Specification for Zinc
B275 Practice for Codification of Certain Nonferrous Metals and Alloys, Cast and Wrought
B899 Terminology Relating to Non-ferrous Metals and Alloys
B908 Practice for the Use of Color Codes for Zinc Casting Alloy Ingot
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
E34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys
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
E1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry
3
2.3 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
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 Feb. 1, 2013Aug. 1, 2013. Published March 2013September 2013. Originally approved in 1958. Last previous edition approved in 20122013
as B327 – 12.13. DOI: 10.1520/B0327-13.10.1520/B0327-13A.
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 ----------------------
B327 − 13a
TABLE 1 Chemical Requirements for Aluminum-Base Master Alloys
NOTE 1—The following applies to all specified limits in this table: For purposes of determining conformance with this specification, the observed value
or calculated value obtained from analysis shall be rounded off “to the nearest unit” in the last right
...
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