ASTM B327-09
(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 composition specified for the zinc-base master alloy is designated as shown in Table 2.
1.2 Aluminum alloy hardeners are added to Special High Grade zinc (per Specification B 6) 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 B 6) 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.
TABLE 1 Chemical Requirements for Aluminum-Base Master Alloys
Note—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 rounding method of Practice E 29. ASTM
Alloy
(UNS)A Composition, percent
Usage Alu-
minum,
minCopperIron, maxSilicon, maxManga-
nese,
maxMagnesiumBZinc Chro-
mium,
maxNickel, maxTin, maxLead, maxBCad-
mium,
maxB ZG71A
(A07131)http://myastm.astm.org/SUPPORT_DOCS/B0200000109015.pdf87.01.7 max0.8 0.70.500.65–1.05 6.5–7.50.200.20 0.020.0200.0101 part by weight of ZG71A, 21 parts by weight of Special High Grade zincC to make ASTM zinc Alloy Z33520 (AG40A)
A UNS designations were established in accordance with Recommended Practice E 527.
B Carried to one additional decimal place to ensure proper control in the final alloy.
C ASTM Specification B 6, for Zinc.
TABLE 2 Chemical and Color Code Requirements for Zinc-Base Master AlloysA,B,C Common (UNS)Color CodeDComposition, percent Alum-
inumMag-
nesiumIron,
maxCopper,
maxLead,
maxCadmium,
max Tin,
maxZinc V12
(Z33730)Pink11.7–
12.6 0.075–
0.120.0700.250.0050.0040.003 remain-
der
A Zinc-base master alloy Z33730 used for producing die casting alloys may contain nickel, chromium, silicon, and manganese up to 0.02, 0.02, 0.035 and 0.05 %, respectively. No harmful effects ...
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Designation: B327 – 09
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* B899 Terminology Relating to Non-ferrous Metals and
Alloys
1.1 This specification covers aluminum–base and zinc–
B908 Practice for the Use of Color Codes for Zinc Casting
base master alloys used to make zinc die-casting alloys. Alloy
Alloy Ingot
compositionsspecifiedforaluminum–basemasteralloys(hard-
E29 Practice for Using Significant Digits in Test Data to
eners) are designated as shown in Table 1. Alloy composition
Determine Conformance with Specifications
specified for the zinc-base master alloy is designated as shown
E34 Test Methods for ChemicalAnalysis ofAluminum and
in Table 2.
Aluminum-Base Alloys
1.2 Aluminum alloy hardeners are added to Special High
E88 Practice for Sampling Nonferrous Metals andAlloys in
Grade zinc (per Specification B6) in the proper alloying ratios,
Cast Form for Determination of Chemical Composition
as shown in Table 1, to produce zinc alloys for die casting.
E101 Test Method for Spectrographic Analysis of Alumi-
1.3 Zinc-base master alloy is added to Special High Grade
num and Aluminum Alloys by the Point-to-Plane Tech-
zinc (per Specification B6) in the proper alloying ratio, as
3
nique
shown in Table 3, to produce zinc alloy for die casting.
E227 Test Method for Optical Emission Spectrometric
1.4 Master alloys may be supplied in the form of shot, bar,
Analysis of Aluminum and Aluminum Alloys by the
ingot or jumbo ingot as specified by the purchaser.
3
Point-to-Plane Technique
1.5 The values stated in inch-pound units are to be regarded
E527 Practice for Numbering Metals and Alloys in the
as standard. The values given in parentheses are mathematical
Unified Numbering System (UNS)
conversions to SI units that are provided for information only
E536 Test Methods for ChemicalAnalysis of Zinc and Zinc
and are not considered standard.
Alloys
1.6 This standard does not purport to address all of the
4
2.3 ISO Standards:
safety concerns, if any, associated with its use. It is the
ISO 3815-1 Zincandzincalloys—Part1:Analysisofsolid
responsibility of the user of this standard to become familiar
samples by optical emission spectrometry
with all hazards including those identified in the appropriate
ISO 3815-2 Zinc and zinc alloys — Part 2: Analysis by
Material Safety Data Sheet (MSDS) for this product/material
inductively coupled plasma optical emission spectrometry
as provided by the manufacturer, to establish appropriate
safety and health practices, and determine the applicability of
3. Terminology
regulatory limitations prior to use.
3.1 Terms shall be defined in accordance with Terminology
2. Referenced Documents B899.
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:
2
casting.
2.2 ASTM Standards:
B6 Specification for Zinc
4. Ordering Information
4.1 Orders for master alloys under this specification shall
1
This specification is under the jurisdiction of ASTM Committee B02 on
include the following information:
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
4.1.1 Quantity,
B02.04 on Zinc and Cadmium.
4.1.2 Alloy (Table 1 or Table 2),
Current edition approved April 15, 2009. Published June 2009. Originally
approved in 1958. Last previous edition approved in 2008 as B327 – 08. DOI:
10.1520/B0327-09.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Withdrawn.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican 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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B327 – 09
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
...
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:B327–08 Designation: B 327 – 09
Standard Specification for
1
Master Alloys Used in Making Zinc Die Casting Alloys
This standard is issued under the fixed designation B 327; 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–
basemasteralloysusedtomakezincdie-castingalloys.Alloycompositionsspecifiedforaluminum–basemasteralloys(hardeners)
are designated as shown in Table 1. Alloy composition specified for the zinc-base master alloy is designated as shown in Table
2.
1.2 Aluminum alloy hardeners are added to Special High Grade zinc (per Specification B 6) 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 B 6) 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
B 899 Terminology Relating to Non-ferrous Metals and Alloys
B 908 Practice for the Use of Color Codes for Zinc Casting Alloy Ingot
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
3
E 101 Test Method for Spectrographic Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique
E 227 Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane
Technique
E 527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E 536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys
4
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
3. Terminology
3.1 Terms shall be defined in accordance with Terminology B 899.
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. 1, 2008. Published December 2008. Originally approved in 1958. Last previous edition approved in 2005 as B327–01(2005).
Current edition approved April 15, 2009. Published June 2009. Originally approved in 1958. Last previous edition approved in 2008 as B 327 – 08.
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
Withdrawn.
4
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 ----------------------
B327–09
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 s
...
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