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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Additional types have been added to permit non-chromate passivate treatments to be used in replacement of hexavalent chromium.
Please first log in with a verified email before subscribing to alerts. Numeral indicates thickness in micrometers. Electroplated springs and other parts subject to?
We have no amendments or corrections for this standard. While the b363 of exposure and uses of electroplated metal are so varied that it is not de? The sampling plan used for the inspection of the quality coated article shall be agreed astmm between the purchaser and producer. There are different passivation colors: B — 07 Standard Speci? If these heat treatments are not required, the purchaser shall specify in the ordering information their exception 5. The electrical resistance of this green layer passivation is very high because it is thick in relative to other passivations.
Due to the impracticality of forging or casting separate test specimens, hot-rolled steel specimens may be used to represent forged and cast steel articles. Your Alert Profile lists the documents that will be monitored. This standard does not purport n633 address all of b6333 safety concerns, if any, associated with its use. The values are only relative, since individual studies in various parts of the world have resulted in?
As much as the last astn of the passivation is thin the electrical resistivity is low. They share, however, the most basic of metal finishing requirements: The purchaser may similarly require that a report of the test results be furnished.
Test Method B provides a default plan if one is not speci? BBBBand B For these reasons a?
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. Colorful chromate passivation gives corrosion resistance ability of 96 hours according to ASTM B until white spots-intended to parts used asym a high corrosive environment —outdoor.
Therefore, it is recommended that supplementary treatments not b363 applied to zinc coatings having a nominal thickness less than 5? The purchaser retains the right to perform any of the inspections and tests set forth in this speci? For example, a cold-rolled steel surface shall not be used to represent a hot-rolled steel surface. Add to Alert PDF. Need more than 70 copy? The chromate, passivate, or supplemental?
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Proceed to Checkout Continue Shopping. Test Method B contains several plans and also gives instructions for calculating plans to meet special needs. 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.
High strength steels tensile strength greater than MPa shall not be electroplated. To determine the nature of accuracy or revision level please verify above data with current releases: Zinc plated components ast from one industry to another.
ASTM B – 07 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel
If heavier coatings are required, allowance for the deposit buildup must be made during the manufacture of the threaded articles. The size of the sample and the criteria for compliance are determined by the application of statistics. The inspection lot atsm then classi?
Zinc coating with colorful RoHS compliance passivation. Current edition approved Jan.
Not the least of which is the environmental regulations impact on the future of the selected finish. Zinc coating with colorless RoHS compliance passivation. A number in parentheses indicates the year of b6333 reapproval.
The coating shall not be stained or discolored. The designer and engineer must take into account several considerations to stay at the forefront of the finish potential. Colorless RoHS compliance passivation gives corrosion resistance ability of 72 hours according to ASTM B until white spots-also intended to parts used in a high corrosive environment —outdoor.
Iron metals rust relative quickly, even in a non-corrosive environment. The salt spray test shall commence within 72 h of the completion of the aging period. This standard is also available to be included in Standards Subscriptions. 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.
ASTM B – Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel
Packaging and Packing Originally approved in Supplementary treatments shall be in accordance with Recommended Practice B NOTE 4—The dimensional tolerance of most threaded ashm, 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. Please first verify your email before subscribing to alerts. In this event, the basis metal shall be subjected to such polishing or buffing operations as are necessary to yield deposits with the desired?