ASTM B907-04
(Specification)Standard Specification for Zinc, Tin and Cadmium Base Alloys Used as Solders and for Thermal Spraying
Standard Specification for Zinc, Tin and Cadmium Base Alloys Used as Solders and for Thermal Spraying
SCOPE
1.1 This specification covers metal alloys (commonly known as soft solders), including zinc-aluminum, zinc-aluminum-copper, zinc-tin, zinc-tin-copper, zinc-cadmium-tin, zinc-cadmium, tin-zinc, cadmium-zinc, cadmium-zinc-silver, and cadmium-silver, used as solders for the purpose of joining together two or more metals at temperatures below their melting points, and for other purposes.
1.1.1 Certain alloys specified in this standard are also used as Thermal Spray Wire in the electronics industry (as noted in the Annex part of this specification). Specification B 833 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 this specification).
1.1.2 Tin base alloys are included in this specification because their use in the electronics industry is different than the major use of the tin and lead solder compositions specified in Specification B 32.
1.1.3 These solders include alloys having a nominal liquidus temperature not exceeding 850F (455°C).
1.1.4 This specification includes solder in the form of solid bars, ingots, powder and special forms, and in the form of solid wire, and solder paste.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 Toxicity Warning: Soluble and respirable forms of cadmium may be harmful to human health and the environment in certain forms and concentrations. Therefore, ingestion and inhalation of cadmium should be controlled under the appropriate regulations of the U.S. Occupational Safety and Health Administration (OSHA). Cadmium-containing alloys and coatings should not be used on articles that will contact food or beverages, or for dental and other equipment that is normally inserted in the mouth. Similarly, if articles using cadmium-containing alloys or coatings are welded, soldered, brazed, ground, flame-cut, or otherwise heated during fabrication, adequate ventilation must be provided to maintain occupational cadmium exposure below the OSHA Permissible Exposure Level (PEL).
1.4 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 Data Sheet 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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Standards Content (Sample)
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Designation: B 907 – 04
Standard Specification for
Zinc, Tin and Cadmium Base Alloys Used as Solders and
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for Thermal Spraying
This standard is issued under the fixed designation B 907; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* adequateventilationmustbeprovidedtomaintainoccupational
cadmium exposure below the OSHA Permissible Exposure
1.1 This specification covers metal alloys (commonly
Level (PEL).
known as soft solders), including zinc-aluminum, zinc-
1.4 This standard does not purport to address all of the
aluminum-copper, zinc-tin, zinc-tin-copper, zinc-cadmium-tin,
safety concerns, if any, associated with its use. It is the
zinc-cadmium, tin-zinc, cadmium-zinc, cadmium-zinc-silver,
responsibility of the user of this standard to become familiar
and cadmium-silver, used as solders for the purpose of joining
with all hazards including those identified in the appropriate
together two or more metals at temperatures below their
Material Safety Data Sheet (MSDS) for this product/material
melting points, and for other purposes.
as provided by the manufacturer, to establish appropriate
1.1.1 Certain alloys specified in this standard are also used
safety and health practices, and determine the applicability of
as Thermal Spray Wire in the electronics industry (as noted in
regulatory limitations prior to use.
the Annex part of this specification). Specification B 833
covers Zinc and Zinc Alloy Wire for Thermal Spraying
2. Referenced Documents
(Metallizing) used primarily for the corrosion protection of
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2.1 ASTM Standards:
steel (as noted in the Annex part of this specification).
B32 Specification for Solder Metal
1.1.2 Tin base alloys are included in this specification
B 833 Specification for Zinc and Zinc Alloy Wire for
becausetheiruseintheelectronicsindustryisdifferentthanthe
Thermal Spraying (Metallizing)
major use of the tin and lead solder compositions specified in
B 899 Terminology Relating to Non-ferrous Metals and
Specification B 32.
Alloys
1.1.3 These solders include alloys having a nominal liqui-
E29 Practice for Using Significant Digits in Test Data to
dus temperature not exceeding 850°F (455°C).
Determine Conformance with Specifications
1.1.4 This specification includes solder in the form of solid
E46 Test Methods for Chemical Analysis of Lead and
bars, ingots, powder and special forms, and in the form of solid
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Tin-Base Solder
wire, and solder paste.
E47 Test Methods for Chemical Analysis of Zinc Die-
1.2 The values stated in inch-pound units are to be regarded
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Casting Alloys
as the standard. The values given in parentheses are for
E51 Method for Spectrographic Analysis of Tin Alloys by
information only.
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the Powder Technique
1.3 Toxicity—Warning: Soluble and respirable forms of
E55 PracticeforSamplingWroughtNonferrousMetalsand
cadmiummaybeharmfultohumanhealthandtheenvironment
Alloys for Determination of Chemical Composition
in certain forms and concentrations. Therefore, ingestion and
E87 Methods for Chemical Analysis of Lead, Tin, Anti-
inhalation of cadmium should be controlled under the appro-
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mony, and Their Alloys (Photometry Method)
priate regulations of the U.S. Occupational Safety and Health
E88 Practice for Sampling Nonferrous Metals and Alloys
Administration (OSHA). Cadmium-containing alloys and coat-
in Cast Form for Determination of Chemical Composition
ings should not be used on articles that will contact food or
E 527 Practice for Numbering Metals and Alloys (UNS)
beverages, or for dental and other equipment that is normally
E 536 Test Method for ChemicalAnalysis of Zinc and Zinc
inserted in the mouth. Similarly, if articles using cadmium-
Alloys
containing alloys or coatings are welded, soldered, brazed,
2.2 Federal Standard:
ground, flame-cut, or otherwise heated during fabrication,
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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 Oct. 1, 2004. Published November 2004. Originally the ASTM website.
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approved in 2000. Last previous edition approved in 2001 as B 907 – 01 . Withdrawn.
*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.
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