ASTM-B860 2009

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B860-09a Standard Specification for Zinc Master Alloys for Use in Hot Dip Galvanizing

Published By	Publication Date	Number of Pages
ASTM	2009	3

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Description

ASTM B860-09a

Historical Standard: Standard Specification for Zinc Master Alloys for Use in Hot Dip Galvanizing

ASTM B860

Scope

1.1 This specification covers zinc master alloys which are used in hot dip galvanizing for the purpose of adjusting the concentration of certain alloying elements in the molten zinc bath. Table 1 covers the chemical composition of these materials which include six master alloys of zinc-aluminum (brightener) and one master alloy of zinc-antimony.

1.2 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.

1.3 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 Composition, % (Range or Maximum Value)^A

^A The following applies to all specified limits in this table: For purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded off 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.

^B UNS numbers in conformance with Practice E527.

^C Chemical method under development.

^D For information only. Quantitative determination of this element is not required. Zinc is assumed to be the difference between 100 % and the sum of those elements listed above.

Keywords

brightener; zinc; zinc alloys; zinc-aluminum alloy; zinc-antimony alloy; zinc master alloys; zinc metal; Brightener; Zinc–specifications; Zinc alloys–specifications; Zinc-aluminum (ZA) coatings; Zinc-antimony alloy; Zinc electrodeposited coatings–specifications; Zinc master alloys; Zinc metal

ICS Code

ICS Number Code n/a

DOI: 10.1520/B0860-09A

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Ordering Information
2	Materials and Manufacture Chemical Requirements Size and Shape TABLE 1
3	Source Inspection Rejection and Rehearing Identification Marking Packaging Keywords

Additional information

	Type S-1
Cd	0.004 max
Al	9.5–10.5
UNSB	Type A-1 90/10 Zn/Al Z30750
ZnD	Remainder
Pb	0.005 max
Cu	0.035 max
As	…
SbC	…
Mg	…
Sn	0.003 max
Others, Total	0.01 max
Fe	0.05 max