ASTM B200-22

Standard Specification for Electrodeposited Coatings of Lead and Lead-Tin Alloys on Steel and Ferrous Alloys

ABSTRACT
This specification establishes the requirements for electrodeposited lead and lead-tin alloy coatings on steel and ferrous alloys. Sheets, strips, or wires in the unfabricated form are not covered here. Coatings shall be sampled, tested, and conform accordingly to specified requirements as to thickness, adhesion, corrosion resistance, hydrogen embrittlement, composition, workmanship, finish, and appearance.
SIGNIFICANCE AND USE
7.1 Electrodeposits of lead and lead-tin alloys on steel and ferrous alloys are produced where it is desired to obtain atmospheric corrosion resistance. Deposits of lead and lead-tin alloys on steel have shown to have excellent corrosion protective qualities in atmospheric exposure, especially when under-coated by a thin deposit of copper (or nickel). Applications of lead and lead-tin alloy deposits include the following: protection from dilute sulfuric acid; lining of brine refrigeration tanks; chemical apparatus; and parts for storage batteries; and for coating bearing surfaces. In this last application, lead is electroplated alone, or as an alloy and coated with another metal, such as indium. The indium may be diffused into the lead or lead alloy by heat treatment. See Appendix X1.
SCOPE
1.1 This specification covers the requirements for electrodeposited coatings of lead and lead-tin alloys on steel and ferrous alloys. The coatings of lead-tin alloys are those that range in tin content up to, but not exceeding, 15 mass %. The coatings ranging between 3 and 15 mass % in tin content are known also as “terne” metallic electrodeposits.  
1.2 This specification does not apply to sheet, strip, or wire in the unfabricated form.  
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 The following precautionary caveat pertains only to the test method portion, Section 11, of this specification: 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 establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 14-Nov-2022
• ICS: 25.220.40 - Metallic coatings
• Technical Committee: B08 - Metallic and Inorganic Coatings
• Drafting Committee: B08.06 - Soft Metals

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: B200 −22
Standard Specification for
Electrodeposited Coatings of Lead and Lead-Tin Alloys on
1
Steel and Ferrous Alloys
This standard is issued under the fixed designation B200; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* B242Guide for Preparation of High-Carbon Steel for Elec-
troplating
1.1 Thisspecificationcoverstherequirementsforelectrode-
B320Practice for Preparation of Iron Castings for Electro-
positedcoatingsofleadandlead-tinalloysonsteelandferrous
plating
alloys.Thecoatingsoflead-tinalloysarethosethatrangeintin
B322Guide for Cleaning Metals Prior to Electroplating
content up to, but not exceeding, 15 mass%. The coatings
B339Specification for Pig Tin
rangingbetween3and15mass%intincontentareknownalso
B374Terminology Relating to Electroplating
as “terne” metallic electrodeposits.
B487Test Method for Measurement of Metal and Oxide
1.2 This specification does not apply to sheet, strip, or wire
Coating Thickness by Microscopical Examination of
in the unfabricated form.
Cross Section
1.3 Units—The values stated in SI units are to be regarded B499Test Method for Measurement of CoatingThicknesses
by the Magnetic Method: Nonmagnetic Coatings on
asstandard.Nootherunitsofmeasurementareincludedinthis
standard. Magnetic Basis Metals
B504Test Method for Measurement of Thickness of Metal-
1.4 The following precautionary caveat pertains only to the
lic Coatings by the Coulometric Method
test method portion, Section 11, of this specification: This
B507Practice for Design ofArticles to Be Electroplated on
standard does not purport to address all of the safety concerns,
Racks
if any, associated with its use. It is the responsibility of the user
B567Test Method for Measurement of Coating Thickness
of this standard to establish appropriate safety, health, and
by the Beta Backscatter Method
environmental practices and determine the applicability of
B568Test Method for Measurement of Coating Thickness
regulatory limitations prior to use.
by X-Ray Spectrometry
1.5 This international standard was developed in accor-
B571Practice for Qualitative Adhesion Testing of Metallic
dance with internationally recognized principles on standard-
Coatings
ization established in the Decision on Principles for the
B602Guide for Attribute Sampling of Metallic and Inor-
Development of International Standards, Guides and Recom-
ganic Coatings
mendations issued by the World Trade Organization Technical
B697Guide for Selection of Sampling Plans for Inspection
Barriers to Trade (TBT) Committee.
of Electrodeposited Metallic and Inorganic Coatings
2. Referenced Documents
B849Specification for Pre-Treatments of Iron or Steel for
2 Reducing Risk of Hydrogen Embrittlement
2.1 ASTM Standards:
B850GuideforPost-CoatingTreatmentsofSteelforReduc-
B117Practice for Operating Salt Spray (Fog) Apparatus
ing the Risk of Hydrogen Embrittlement
B183Practice for Preparation of Low-Carbon Steel for
Electroplating
3. Terminology
3.1 Definitions—Definitions of the terms used in this speci-
1
This specification is under the jurisdiction of ASTM Committee B08 on
Metallic and Inorganic Coatings and is the direct responsibility of Subcommittee fication are in accordance with Terminology B374.
B08.06 on Soft Metals.
Current edition approved Nov. 15, 2022. Published December 2022. Originally
4. Classification
approvedin1970.Lastpreviouseditionapprovedin2015asB200–85(2015).DOI:
10.1520/B0200-22.
4.1 The coating designation shall comprise the following:
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.1 The chemical symbol for the basis metal.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1.2 The chemical symbol for the undercoating of copper
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. or nickel, if used.
*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

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B200 − 22
4.1.3 The chemical symbol Pb representing lead or the incudes chemical composition, grade, condition, and finish of
symbolPbSnforthelead-tinalloy.Whentinispresent,thetin surface prior to electroplating. For example, a cold-rolled steel
content of the coa
...

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: B200 − 85 (Reapproved 2015) B200 − 22
Standard Specification for
Electrodeposited Coatings of Lead and Lead-Tin Alloys on
1
Steel and Ferrous Alloys
This standard is issued under the fixed designation B200; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope Scope*
1.1 This specification covers the requirements for electrodeposited coatings of lead and lead-tin alloys on steel and ferrous alloys.
The coatings of lead-tin alloys are those that range in tin content up to, but not exceeding, 15 mass %. The coatings ranging
between 3 and 15 mass % in tin content are known also as “terne” metallic electrodeposits.
1.2 This specification does not apply to sheet, strip, or wire in the unfabricated form.
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard.
1.4 The following precautionary caveat pertains only to the test method portion, Section 11, of this specification: 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 establish appropriate safety safety, health, and healthenvironmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
B117 Practice for Operating Salt Spray (Fog) Apparatus
B183 Practice for Preparation of Low-Carbon Steel for Electroplating
B242 Guide for Preparation of High-Carbon Steel for Electroplating
B320 Practice for Preparation of Iron Castings for Electroplating
B322 Guide for Cleaning Metals Prior to Electroplating
B339 Specification for Pig Tin
B374 Terminology Relating to Electroplating
B487 Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
1
This specification is under the jurisdiction of ASTM Committee B08 on Metallic and Inorganic Coatings and is the direct responsibility of Subcommittee B08.06 on Soft
Metals.
Current edition approved March 1, 2015Nov. 15, 2022. Published April 2015December 2022. Originally approved in 1970. Last previous edition approved in 20092015
as B200 – 85 (2009).(2015). DOI: 10.1520/B0200-85R15.10.1520/B0200-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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 ----------------------
B200 − 22
B499 Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis
Metals
B504 Test Method for Measurement of Thickness of Metallic Coatings by the Coulometric Method
B507 Practice for Design of Articles to Be Electroplated on Racks
B567 Test Method for Measurement of Coating Thickness by the Beta Backscatter Method
B568 Test Method for Measurement of Coating Thickness by X-Ray Spectrometry
B571 Practice for Qualitative Adhesion Testing of Metallic Coatings
B602 Guide for Attribute Sampling of Metallic and Inorganic Coatings
B697 Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings
B849 Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
B850 Guide for Post-Coating Treatments of Steel for Reducing the Risk of Hydrogen Embrittlement
3. Terminology
3.1 Definitions—Definitions of the terms used in this specification are in accordance with Terminology B374.
4. Classification
4.1 The coating designation shall comprise the following:
4.1.1 The chemical symbol for the basis metal.
4.1.2 The chemical symbol for th
...