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ASTM International - ASTM B327-09

Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys

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Organization: ASTM International
Publication Date: 15 April 2009
Status: inactive
Page Count: 4
ICS Code (Aluminium and aluminium alloys): 77.120.10
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,
min
CopperIron, maxSilicon, maxManga-
nese,
max
Magnesium

B

Zinc Chro-
mium,
max
Nickel, maxTin, maxLead, max

B

Cad-
mium,
max

B

ZG71A
(A07131)http://myastm.astm.org/SUPPORT_DOCS/B0200000109015.pdf
87.01.7 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 zinc

C 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 Code

D

Composition, percent
Alum-
inum
Mag-
nesium
Iron,
max
Copper,
max
Lead,
max
Cadmium,
max
Tin,
max
Zinc
V12
(Z33730)
Pink11.7-
12.6
0.075-
0.12
0.0700.250.0050.0040.003 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 have ever been noted due to the presence of these elements in up to these concentrations in die casting alloys and, therefore, analyses are not required for these elements, except that nickel analysis is required when producing die casting alloy Z33522.

B The UNS assignations were established in accordance with Practice E 527.

C 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.

D Refer to Practice B 908. (Note: Colors indicated are for North American applications.)

TABLE 3 Weight Requirements for Zinc-Base Master Alloy Jumbo Ingots

Note-These requirements are based on the use of nominal 2400 lb or 1200 lb jumbo ingots of V12 (Z33730).

Nominal
Weight, lb
Weight Range, lb

A

Usage
MinimumMaximum
2400232524751 part by weight of V12 (one 2400 lb jumbo ingot), 2 parts by weight (two 2400 lb jumbo ingots) of Special High Grade zinc to make ASTM zinc alloy Z33520 (AG40A).
1200 115012501 part by weight of V12 (one 1200 lb jumbo ingot), 2 parts by weight (one 2400 lb jumbo ingot) of Special High Grade zinc to make ASTM zinc alloy Z33520 (AG40A).

A Jumbo ingots outside the above weight limits may be acceptable depending upon the chemistry, if mutually agreed upon between the producer and purchaser.

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... View More

Document History

November 1, 2021
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
May 1, 2016
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
August 1, 2013
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
February 1, 2013
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
May 1, 2012
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
October 1, 2009
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
October 1, 2009
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
ASTM B327-09
April 15, 2009
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
November 1, 2008
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
November 1, 2005
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
May 10, 2001
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
May 10, 2001
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
May 10, 2001
Standard Specification for Master Alloys Used in Making Zinc Die Casting Alloys
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...
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