ASTM B943-16
(Specification)Standard Specification for Zinc and Tin Alloy Wire Used in Thermal Spraying for Electronic Applications
Standard Specification for Zinc and Tin Alloy Wire Used in Thermal Spraying for Electronic Applications
ABSTRACT
This specification covers zinc and tin alloy wire, including zinc-aluminum, zinc-aluminum-copper, zinc-tin, zinc-tin-copper an dtin-zinc, used as thermal spray wire in the electronics industry. The wire shall conform to the required chemical composition for cadmium, zinc, tin, lead, antimony, copper, aluminum, bismuth, arsenic, iron, nickel, and magnesium. The wire shall be clean and free of corrosion, adhering foreign material, scale, seams, nicks, burrs, and other defects which would interfere with the operation of thermal spraying equipment. The wire shall uncoil readily and be free of bends or kinks that would prevent its passage through the thermal spray gun. Sampling methodology should ensure that the sample slected for testing is representative of the matreial. The diameter of the wire shall be determines at the end and the beginning of each continuous wire.
SCOPE
1.1 This specification covers zinc and tin alloy wire, including zinc-aluminum, zinc-aluminum-copper, zinc-tin, zinc-tin-copper and tin-zinc, used as thermal spray wire in the electronics industry.
1.1.1 Certain alloys specified in this standard are also used as solders for the purpose of joining together two or more metals at temperatures below their melting points, and for other purposes (as noted in Annex A1). Specification B907 covers Zinc, Tin and Cadmium Base Alloys Used as Solders which are used primarily for the purpose of joining together two or more metals at temperatures below their melting points and for other purposes (as noted in the Annex part of Specification B907). Specification B833 covers Zinc and Zinc Alloy Wire for Thermal Spraying (Metallizing) used primarily for the corrosion protection of steel (as noted in the Annex part of Specification B833).
1.1.2 Tin base alloys are included in this specification because their use in the electronics industry is similar to the use of certain zinc alloys but different than the major use of the tin and lead solder compositions specified in Specification B32.
1.1.3 These wire alloys have a nominal liquidus temperature not exceeding 850°F (455°C).
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 Safety Data Sheet (SDS) 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:B943 −16
Standard Specification for
Zinc and Tin Alloy Wire Used in Thermal Spraying for
1
Electronic Applications
This standard is issued under the fixed designation B943; 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* 2. Referenced Documents
2
1.1 This specification covers zinc and tin alloy wire, includ- 2.1 ASTM Standards:
ing zinc-aluminum, zinc-aluminum-copper, zinc-tin, zinc-tin- B32 Specification for Solder Metal
copper and tin-zinc, used as thermal spray wire in the elec- B833 Specification for Zinc and Zinc Alloy Wire for Ther-
tronics industry. malSpraying(Metallizing)fortheCorrosionProtectionof
1.1.1 Certain alloys specified in this standard are also used Steel
as solders for the purpose of joining together two or more B899 Terminology Relating to Non-ferrous Metals and Al-
metalsattemperaturesbelowtheirmeltingpoints,andforother loys
purposes (as noted in Annex A1). Specification B907 covers B907 Specification for Zinc, Tin and Cadmium Base Alloys
Zinc,TinandCadmiumBaseAlloysUsedasSolderswhichare Used as Solders
used primarily for the purpose of joining together two or more B949 Specification for General Requirements for Zinc and
metals at temperatures below their melting points and for other Zinc Alloy Products
purposes (as noted in the Annex part of Specification B907). E29 Practice for Using Significant Digits in Test Data to
Specification B833 covers Zinc and Zinc Alloy Wire for Determine Conformance with Specifications
Thermal Spraying (Metallizing) used primarily for the corro- E46 Test Methods for Chemical Analysis of Lead- and
3
sion protection of steel (as noted in the Annex part of Tin-Base Solder (Withdrawn 1994)
Specification B833). E51 Method for Spectrographic Analysis of Tin Alloys by
3
1.1.2 Tin base alloys are included in this specification the Powder Technique (Withdrawn 1983)
becausetheiruseintheelectronicsindustryissimilartotheuse E87 Methods for ChemicalAnalysis of Lead, Tin,Antimony
of certain zinc alloys but different than the major use of the tin and Their Alloys (Photometric Method) (Withdrawn
3
and lead solder compositions specified in Specification B32. 1983)
1.1.3 Thesewirealloyshaveanominalliquidustemperature B527 Test Method for Tap Density of Metal Powders and
not exceeding 850°F (455°C). Compounds
E536 Test Methods for Chemical Analysis of Zinc and Zinc
1.2 The values stated in inch-pound units are to be regarded
Alloys
as standard. The values given in parentheses are mathematical
4
2.2 Federal Standard:
conversions to SI units that are provided for information only
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
and are not considered standard.
5
2.3 ISO Standards:
1.3 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
Safety Data Sheet (SDS) for this product/material as provided
by the manufacturer, to establish appropriate safety and health
practices, and determine the applicability of regulatory limi-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tations prior to use.
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.
1 3
This specification is under the jurisdiction of ASTM Committee B02 on The last approved version of this historical standard is referenced on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee www.astm.org.
4
B02.04 on Zinc and Cadmium. Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,
CurrenteditionapprovedMay1,2016.PublishedJuly2016.Originallyapproved Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
5
in 2005. Last previous edition approved in 2013 as B943 – 13. DOI: 10.1520/ Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
B0943-16. 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 ----------------------
B943−16
4
2.4 Military Standard: requirements of composition. In case of dispute
...
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: B943 − 13 B943 − 16
Standard Specification for
Zinc and Tin Alloy Wire Used in Thermal Spraying for
1
Electronic Applications
This standard is issued under the fixed designation B943; 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 zinc and tin alloy wire, including zinc-aluminum, zinc-aluminum-copper, zinc-tin, zinc-tin-copper
and tin-zinc, used as thermal spray wire in the electronics industry.
1.1.1 Certain alloys specified in this standard are also used as solders for the purpose of joining together two or more metals
at temperatures below their melting points, and for other purposes (as noted in Annex A1). Specification B907 covers Zinc, Tin
and Cadmium Base Alloys Used as Solders which are used primarily for the purpose of joining together two or more metals at
temperatures below their melting points and for other purposes (as noted in the Annex part of Specification B907). Specification
B833 covers Zinc and Zinc Alloy Wire for Thermal Spraying (Metallizing) used primarily for the corrosion protection of steel (as
noted in the Annex part of Specification B833).
1.1.2 Tin base alloys are included in this specification because their use in the electronics industry is similar to the use of certain
zinc alloys but different than the major use of the tin and lead solder compositions specified in Specification B32.
1.1.3 These wire alloys have a nominal liquidus temperature not exceeding 850°F (455°C).
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)(SDS) 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
2.1 ASTM Standards:
B32 Specification for Solder Metal
B833 Specification for Zinc and Zinc Alloy Wire for Thermal Spraying (Metallizing) for the Corrosion Protection of Steel
B899 Terminology Relating to Non-ferrous Metals and Alloys
B907 Specification for Zinc, Tin and Cadmium Base Alloys Used as Solders
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
3
E46 Test Methods for Chemical Analysis of Lead- and Tin-Base Solder (Withdrawn 1994)
3
E51 Method for Spectrographic Analysis of Tin Alloys by the Powder Technique (Withdrawn 1983)
3
E87 Methods for Chemical Analysis of Lead, Tin, Antimony and Their Alloys (Photometric Method) (Withdrawn 1983)
B527 Test Method for Tap Density of Metal Powders and Compounds
E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys
4
2.2 Federal Standard:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
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, 2013May 1, 2016. Published March 2013July 2016. Originally approved in 2005. Last previous edition approved in 20092013 as B943
– 09.13. DOI: 10.1520/B0943-13.10.1520/B0943-16.
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’sstandard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA
19111-5098, http://www.dodssp.daps.mil.19111-5094, http://quicksearch.dla.mil.
*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 S
...
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