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ASTM B – 07 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. 6b33 sampling plan used for the inspection of the quality coated article shall be agreed upon between the purchaser and producer. Corrosion Resistance Requirements Types. To determine the nature of accuracy or revision level please verify above data with current releases: Colorful chromate passivation gives corrosion resistance ability of 96 hours according to ASTM B until white spots-intended to parts used asttm a high corrosive environment —outdoor.
They ast, however, the most basic of metal finishing requirements: Conditions affecting the electroplating of specimens, including the spacing, plating media, bath agitation, temperature, etc. Please first verify your email before subscribing to alerts. Standards Subsctiption may be the perfect solution. B — 07 Standard Speci?
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Unless a need can be demonstrated, separately prepared specimens shall not be used in place of production items for nondestructive and visual examinations.
The designer and engineer must take into account several considerations to stay at the forefront of the finish potential. Supplementary treatments shall asm in accordance with Recommended Practice B Numeral indicates thickness in micrometers. The electroplated article shall be clean and free of damage.
Your Alert Profile lists the documents that will be monitored. Already Subscribed to this document. Olive green passivation is a chromate passivation in a green hue that gives excellent corrosion resistance ability hours in a salt spray b33 and is a good base for paint.
Additional types have been added to permit non-chromate passivate treatments to be used in replacement of hexavalent chromium. The separate specimens shall be of a basis metal equivalent to that of the articles represented. The black layer has also additional target —prevention of light reflection from the part and is used for optical parts. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Add to Alert PDF. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. These separate specimens shall be introduced into a lot at regular intervals before the cleaning operations, preliminary to electroplating, and shall not be separated therefrom until after completion of electroplating. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Materials and Manufacture 6. Subscription 6b33 is determined by: Additional types have been added to permit non-chromate passivate treatments to be used in replacement of hexavalent chromium.
Olive green and Black passivation is thick and has high electrical resistance. This standard is also available to be included in Standards Subscriptions. The exterior visual determined according to last layer.
ASTM B – Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel
They may be reconsidered for inspection in accordance with Test Method B If the purchaser does not specify an exception to heat treatment, then the plater shall use Table 1 in B to determine the appropriate heat treatment for the steel based on its tensile strength. In this event, the basis metal shall be subjected to such polishing or buffing operations as are necessary to yield deposits with the desired? Properly performed, statisitical process 70 will assure coated products of satisfactory quality asstm will assure the amount of acceptance inspection.
The chromate, passivate, or supplemental? For these reasons a? NOTE 4—The dimensional tolerance of most threaded articles, such as nuts, bolts, screws, and similar fasteners with complementary threads, normally does not permit the application of a coating thickness much greater than 8. Originally approved in