ASTM B699-86(2015)

Standard Specification for Coatings of Cadmium Vacuum-Deposited on Iron and Steel

ABSTRACT
This specification covers the standard requirements for cadmium coatings vacuum deposited with or without supplementary chromate treatment on iron and steel basis metals. The cadmium metal for the production of the coating and the resultant coating shall conform to the chemical composition requirements as shall be determined by chemical, electrochemical, spectrochemical, or X-ray fluorescence analysis. Steel parts that have been machined, ground, cold-formed, or cold-straightened shall be heat treated for stress relief before cleaning and coating. The basis metal shall undergo surface cleaning, abrasive dry blasting, and outgassing by electron bombardment with high-energy positive ions to ensure satisfactory adhesion, abrasion resistance, and corrosion resistance performance. Chromate treatment shall be done in or with special aqueous acid solutions composed of hexavalent chromium along with certain anions that act as a catalyst or film forming compound to produce continuous, smooth, protective film. Coating adhesion shall be determined either by scraping or shearing with a sharp edge, knife, or razor blade through the coating down to the basis metal; plastically deforming by clamping and bending; or any suitable procedure such as burnishing, draw, or scribe tests. Salt spray corrosion test and visual examination shall also be performed on the coatings.
SCOPE
1.1 This specification covers the requirements for a cadmium coating vacuum-deposited on iron and steel basis metals. The coating is especially beneficial to those ferrous metals, heat treated to 46HRC and higher or having an ultimate tensile strength greater than 1500 MPa, wherein protection against corrosion and appearance are important (see Appendix X1).  
1.2 Vacuum-deposited production items are normally free of hydrogen embrittlement, a danger when using electroplating processes for deposition. Vacuum deposition can handle large high-strength parts that cannot be conveniently mechanically plated in the rotating barrels.  
1.3 The coating is provided in various thicknesses up to and including 12 μm (3.1) either in the as-deposited condition or with a supplementary finish (3.2).  
1.4  The following precautionary caveat pertains only to the test methods portion, Section 9, of this specification: This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 28-Feb-2015
• ICS: 25.220.40 - Metallic coatings
• Technical Committee: B08 - Metallic and Inorganic Coatings
• Drafting Committee: B08.06 - Soft Metals

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B699 −86 (Reapproved 2015)
Standard Specification for
1
Coatings of Cadmium Vacuum-Deposited on Iron and Steel
This standard is issued under the fixed designation B699; 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.
1. Scope B320Practice for Preparation of Iron Castings for Electro-
plating
1.1 This specification covers the requirements for a cad-
B322Guide for Cleaning Metals Prior to Electroplating
miumcoatingvacuum-depositedonironandsteelbasismetals.
B440Specification for Cadmium
The coating is especially beneficial to those ferrous metals,
B487Test Method for Measurement of Metal and Oxide
heattreatedto46HRCandhigherorhavinganultimatetensile
Coating Thickness by Microscopical Examination of
strength greater than 1500 MPa, wherein protection against
Cross Section
corrosion and appearance are important (see Appendix X1).
B499Test Method for Measurement of CoatingThicknesses
1.2 Vacuum-depositedproductionitemsarenormallyfreeof
by the Magnetic Method: Nonmagnetic Coatings on
hydrogen embrittlement, a danger when using electroplating
Magnetic Basis Metals
processes for deposition. Vacuum deposition can handle large
B504Test Method for Measurement of Thickness of Metal-
high-strength parts that cannot be conveniently mechanically
lic Coatings by the Coulometric Method
plated in the rotating barrels.
B567Test Method for Measurement of Coating Thickness
1.3 Thecoatingisprovidedinvariousthicknessesuptoand
by the Beta Backscatter Method
including 12 µm (3.1) either in the as-deposited condition or
B568Test Method for Measurement of Coating Thickness
with a supplementary finish (3.2).
by X-Ray Spectrometry
B571Practice for Qualitative Adhesion Testing of Metallic
1.4 Thefollowingprecautionarycaveatpertainsonlytothe
Coatings
test methods portion, Section 9, of this specification: This
B602Test Method for Attribute Sampling of Metallic and
standarddoesnotpurporttoaddressallofthesafetyproblems,
Inorganic Coatings
ifany,associatedwithitsuse.Itistheresponsibilityoftheuser
B697Guide for Selection of Sampling Plans for Inspection
of this standard to establish appropriate safety and health
of Electrodeposited Metallic and Inorganic Coatings
practices and determine the applicability of regulatory limita-
E396Test Methods for Chemical Analysis of Cadmium
tions prior to use.
F519Test Method for Mechanical Hydrogen Embrittlement
2. Referenced Documents
Evaluation of Plating/Coating Processes and Service En-
2
2.1 ASTM Standards: vironments
B117Practice for Operating Salt Spray (Fog) Apparatus
B183Practice for Preparation of Low-Carbon Steel for
3. Classification
Electroplating
3.1 Classes—Vacuum-deposited cadmium coatings shall be
B201Practice for Testing Chromate Coatings on Zinc and
classified on the basis of thickness, as follows:
Cadmium Surfaces
Class Minimum Thickness, µm
B242Guide for Preparation of High-Carbon Steel for Elec-
12 12
troplating
88
B254Practice for Preparation of and Electroplating on 55
Stainless Steel
3.2 Types—Vacuum-deposited cadmium coatings shall be
identified by types on the basis of supplementary treatment
1
This specification is under the jurisdiction of ASTM Committee B08 on
required, as follows:
Metallic and Inorganic Coatings and is the direct responsibility of Subcommittee
3.2.1 Type I—As-vacuum-deposited without supplementary
B08.06 on Soft Metals.
Current edition approved March 1, 2015. Published April 2015. Originally
chromate treatment (see Appendix X1).
approved in 1981. Last previous edition approved in 2008 as B699–86 (2008).
3.2.2 Type II—With supplementary chromate treatment (see
DOI: 10.1520/B0699-86R15.
2
Appendix X2).
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 NOTE1—ItisstronglyrecommendedthatTypeIIshouldbeusedrather
the ASTM website. than Type I on production items.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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B699−86 (2015)
4. Ordering Information 5.5 Substrate—Unless otherwise specified, cadmium shall
be deposited directly on the basis metal without a preliminary
4.1 To make the application of this specification complete,
undercoating of another metal. A preliminary undercoating of
the purchaser needs to supply the following information to the
nickel is permissible with parts made of stainless steel.
supplier in the purchase order or other governing document:
4.
...

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: B699 − 86 (Reapproved 2008) B699 − 86 (Reapproved 2015)
Standard Specification for
1
Coatings of Cadmium Vacuum-Deposited on Iron and Steel
This standard is issued under the fixed designation B699; 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 the requirements for a cadmium coating vacuum-deposited on iron and steel basis metals. The
coating is especially beneficial to those ferrous metals, heat treated to 46HRC and higher or having an ultimate tensile strength
greater than 1500 MPa, wherein protection against corrosion and appearance are important (see Appendix X1).
1.2 Vacuum-deposited production items are normally free of hydrogen embrittlement, a danger when using electroplating
processes for deposition. Vacuum deposition can handle large high-strength parts that cannot be conveniently mechanically plated
in the rotating barrels.
1.3 The coating is provided in various thicknesses up to and including 12 μm (3.1) either in the as-deposited condition or with
a supplementary finish (3.2).
1.4 The following precautionary caveat pertains only to the test methods portion, Section 9, of this specification:This standard
does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this
standard 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:
B117 Practice for Operating Salt Spray (Fog) Apparatus
B183 Practice for Preparation of Low-Carbon Steel for Electroplating
B201 Practice for Testing Chromate Coatings on Zinc and Cadmium Surfaces
B242 Guide for Preparation of High-Carbon Steel for Electroplating
B254 Practice for Preparation of and Electroplating on Stainless Steel
B320 Practice for Preparation of Iron Castings for Electroplating
B322 Guide for Cleaning Metals Prior to Electroplating
B440 Specification for Cadmium
B487 Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
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
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 Test Method for Attribute Sampling of Metallic and Inorganic Coatings
B697 Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings
E396 Test Methods for Chemical Analysis of Cadmium
F519 Test Method for Mechanical Hydrogen Embrittlement Evaluation of Plating/Coating Processes and Service Environments
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 Aug. 1, 2008March 1, 2015. Published September 2008April 2015. Originally approved in 1981. Last previous edition approved in 20032008
as B699 – 86 (2003).(2008). DOI: 10.1520/B0699-86R08.10.1520/B0699-86R15.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B699 − 86 (2015)
3. Classification
3.1 Classes—Vacuum-deposited cadmium coatings shall be classified on the basis of thickness, as follows:
Class Minimum Thickness, μm
12 12
8 8
5 5
3.2 Types—Vacuum-deposited cadmium coatings shall be identified by types on the basis of supplementary treatment required,
as follows:
3.2.1 Type I—As-vacuum-deposited without supplementary chromate treatment (see Appendix X1).
3.2.2 Type II—With supplementary chromate treatment (see Appendix X2).
NOTE 1—It is strongly recommended that Type II should be used rather than Type I on productio
...