ASTM B907-09
(Specification)Standard Specification for Zinc, Tin and Cadmium Base Alloys Used as Solders
Standard Specification for Zinc, Tin and Cadmium Base Alloys Used as Solders
ABSTRACT
This specification covers solder metal alloys used as solders for the purpose of joining together two or more metals at temperatures below their melting points. The solder alloy shall conform to the required chemical compositions of cadmium, zinc, tin, lead, antimony, silver, copper, aluminum, bismuth, arsenic, iron, nickel and magnesium. The solder paste shall conform to the required smoothness of textures, powder mesh size, and viscosity.
SCOPE
1.1 This specification covers solder 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.
1.1.1 Certain alloys specified in this standard are also used as Thermal Spray Wire in the electronics industry and are covered for this purpose in Specification B943. Specification B833 covers Zinc and Zinc Alloy Wire for Thermal Spraying (Metallizing) used primarily for the corrosion protection of steel (as noted in Annex A1 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 B32.
1.1.3 These solders include alloys having a nominal liquidus temperature not exceeding 850°F (455°C).
1.1.4 This specification includes solder in the form of solid bars, ingots, wire, powder and special forms, and in the form of solder paste.
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 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 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.
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Designation:B907 −09
StandardSpecification for
1
Zinc, Tin and Cadmium Base Alloys Used as Solders
This standard is issued under the fixed designation B907; 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* ground, flame-cut, or otherwise heated during fabrication,
adequateventilationmustbeprovidedtomaintainoccupational
1.1 Thisspecificationcoverssoldermetalalloys(commonly
cadmium exposure below the OSHA Permissible Exposure
known as soft solders), including zinc-aluminum, zinc-
Level (PEL).
aluminum-copper, zinc-tin, zinc-tin-copper, zinc-cadmium-tin,
1.4 This standard does not purport to address all of the
zinc-cadmium, tin-zinc, cadmium-zinc, cadmium-zinc-silver,
safety concerns, if any, associated with its use. It is the
and cadmium-silver, used as solders for the purpose of joining
responsibility of the user of this standard to become familiar
together two or more metals at temperatures below their
with all hazards including those identified in the appropriate
melting points.
Material Safety Data Sheet (MSDS) for this product/material
1.1.1 Certain alloys specified in this standard are also used
as provided by the manufacturer, to establish appropriate
as Thermal Spray Wire in the electronics industry and are
safety and health practices, and determine the applicability of
covered for this purpose in Specification B943. Specification
regulatory limitations prior to use.
B833 covers Zinc and Zinc Alloy Wire for Thermal Spraying
(Metallizing) used primarily for the corrosion protection of
2. Referenced Documents
steel (as noted in Annex A1 of this specification).
2
1.1.2 Tin base alloys are included in this specification
2.1 ASTM Standards:
becausetheiruseintheelectronicsindustryisdifferentthanthe
B32 Specification for Solder Metal
major use of the tin and lead solder compositions specified in
B833 Specification for Zinc and Zinc Alloy Wire for Ther-
Specification B32.
malSpraying(Metallizing)fortheCorrosionProtectionof
1.1.3 These solders include alloys having a nominal liqui-
Steel
dus temperature not exceeding 850°F (455°C).
B899 Terminology Relating to Non-ferrous Metals and Al-
1.1.4 This specification includes solder in the form of solid
loys
bars,ingots,wire,powderandspecialforms,andintheformof
B943 Specification for Zinc and Tin Alloy Wire Used in
solder paste.
Thermal Spraying for Electronic Applications
E29 Practice for Using Significant Digits in Test Data to
1.2 The values stated in inch-pound units are to be regarded
Determine Conformance with Specifications
as standard. The values given in parentheses are mathematical
E46 Test Methods for Chemical Analysis of Lead- and
conversions to SI units that are provided for information only
3
Tin-Base Solder (Withdrawn 1994)
and are not considered standard.
E51 Method for Spectrographic Analysis of Tin Alloys by
1.3 Toxicity—Warning: Soluble and respirable forms of
3
the Powder Technique (Withdrawn 1983)
cadmiummaybeharmfultohumanhealthandtheenvironment
E55 Practice for Sampling Wrought Nonferrous Metals and
in certain forms and concentrations. Therefore, ingestion and
Alloys for Determination of Chemical Composition
inhalation of cadmium should be controlled under the appro-
E87 Methods for ChemicalAnalysis of Lead,Tin,Antimony
priate regulations of the U.S. Occupational Safety and Health
and Their Alloys (Photometric Method) (Withdrawn
Administration(OSHA).Cadmium-containingalloysandcoat-
3
1983)
ings should not be used on articles that will contact food or
E88 Practice for Sampling Nonferrous Metals and Alloys in
beverages, or for dental and other equipment that is normally
Cast Form for Determination of Chemical Composition
inserted in the mouth. Similarly, if articles using cadmium-
E527 Practice for Numbering Metals and Alloys in the
containing alloys or coatings are welded, soldered, brazed,
1 2
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 Alloys and is the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee B02.04 on Zinc and Cadmium. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2009. Published November 2009. Originally the ASTM website.
3
approved in 2000. Last previous edition approved in 2005 as B907 – 05. DOI: The last approved version of this historical standard is referenced on
10.1520/B0907-09. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright ©
...
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:B907–05 Designation: B907 – 09
Standard Specification for
1
Zinc, Tin and Cadmium Base Alloys Used as Solders
This standard is issued under the fixed designation B907; 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 solder 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.
1.1.1 Certain alloys specified in this standard are also used as Thermal Spray Wire in the electronics industry and are covered
for this purpose in Specification B943. 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 partA1 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 B32.
1.1.3 These solders include alloys having a nominal liquidus temperature not exceeding 850°F (455°C).
1.1.4 This specification includes solder in the form of solid bars, ingots, wire, powder and special forms, and in the form of
solder paste.
1.2The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
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 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 HealthAdministration (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 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
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
B943 Specification for Zinc and Tin Alloy Wire Used in Thermal Spraying for Electronic Applications
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E46 Test Methods for Chemical Analysis of Lead and Tin-Base Solder
3
E47Test Methods for Chemical Analysis of Zinc Die-Casting Alloys Test Methods for Chemical Analysis of Lead- and
3
Tin-Base Solder
0
E51 Method for Spectrographic Analysis of Tin Alloys by the Powder Technique
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB02onNonferrousMetalsandAlloysandAlloysandisthedirectresponsibilityofSubcommitteeB02.04
on Zinc and Cadmium.
Current edition approved Nov.Oct. 1, 2005.2009. Published December 2005.November 2009. Originally approved in 2000. Last previous edition approved in 20042005
as B907 – 045. DOI: 10.1520/B0907-059.
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’
...
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