ASTM B633 07 PDF

Buy ASTM B SPECIFICATION FOR ELECTRODEPOSITED COATINGS OF ZINC ON IRON AND STEEL from SAI Global. ASTM B Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel CONTAINED IN VOL. , Provides requirements for. ASTM B Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel. This specification covers requirements for electrodeposited.

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They share, however, the most basic of metal finishing requirements: Corrosion Resistance Requirements Types.

ASTM B – 07 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel

The values are only relative, since individual studies in various parts of the world have resulted in? If these heat treatments are not required, the purchaser shall specify in the ordering information their exception 5.

The following data, based b6333 worldwide testing, can be used to compare the behavior of electrodeposited coatings of zinc in various atmospheres. This guide provides for two plans: Electrical charasteristics As much as the last layer of the passivation is thin the electrical resistivity is low. Properly performed, statisitical process control will assure coated products of satisfactory quality and will assure the amount of acceptance inspection.

B Where service conditions are valid only for coatings with chromate conversion coating. Subject the selected samples to the salt spray test; the length of time to be applicable for the type of supplementary coating shall be in accordance with the requirements of 7. If heavier coatings are required, allowance for the deposit buildup must be made during the manufacture of the threaded articles. This standard is not included in any packages.

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Zinc and Zinc alloys, such as zinc-nickel will surely play a more significant role as metals such as Cadmium are destined for the elements’ Valhalla. As a result of large-scale and long-range tests conducted by ASTM and other organizations, there is excellent information on the corrosion behavior of zinc and zinc coatings. 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.

Responsibility for Inspection S1. They may be reconsidered for inspection in accordance with Test Method B Except as otherwise speci? The separate specimens shall be of a basis metal equivalent to that of the articles represented. The type of passivation is determined according to the required characteristics, and is divided into groups: Corrosion resistance Colorful chromate passivation gives corrosion resistance ability of 96 hours according to ASTM B until white spots-intended to parts used in a high corrosive environment —outdoor.

Additional types have been added to permit non-chromate passivate treatments to be used in replacement of hexavalent chromium. NOTE 5—Thickness methods that rely on the purity of the zinc deposit may not be sufficiently accurate when evaluating coatings produced from non-cyanide zinc solutions. Olive green passivation is a chromate passivation in a green hue that gives excellent corrosion resistance ability hours in a salt spray test and is a good base for paint.

If the purchaser does not specify an exception to heat treatment, then the plater shall use Table 1 in B 70 determine the appropriate heat treatment for the steel based on its tensile strength. To determine the nature of accuracy or revision level please verify above data with current releases: B6333 comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

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Available colors are iridescent and black Colorless chromate passivation gives corrosion resistance ability of 12 hours according to ASTM B until white spots-intended to parts used in a light corrosive environment —indoor.

Zinc Coating

For these reasons a? Originally approved in Zinc coating with colorless RoHS compliance passivation. Iridescent and Colorless passivation is thin and has low electrical resistance. Therefore, it is recommended that supplementary treatments not be applied to zinc coatings having a nominal thickness less than 5?

The electroplated article shall be clean and free of damage.

Decorative charastreistics The exterior visual determined according to last layer. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. In this event, the basis metal shall be subjected to such polishing or buffing operations as are necessary to yield deposits with the desired? It is recommended that the following appropriate recommended practices and guides be used: A number in parentheses indicates the year of last reapproval.

Standards Subsctiption may be the perfect solution. If these heat treatments are not required, the purchaser shall specify in the ordering information their exception, 5. As much as the last layer of the passivation is thin the electrical resistivity is low.