ASTM B Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel. Buy ASTM B SPECIFICATION FOR ELECTRODEPOSITED COATINGS OF ZINC ON IRON AND STEEL from SAI Global. ASTM B Type II and III zinc chromate plating Q&A’s. In my opinion a Mil-C- [link is to free spec at Defense Logistics Agency, ] plating.

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Zinc Coating

The sampling plan used for the inspection of the quality coated article shall be agreed upon between the purchaser and producer. Did you ever qstm the answers you were looking for? Surfaces to be painted should be ONLY lightly chromated. Zinc coating with colorful RoHS compliance passivation.

ASTM B-633 Type II vs. III zinc plating

The answer is Yes. The separate specimens may also be cut from scrap castings when ferrous alloy castings are being electroplated. Is there any colour difference OR is there any Salt spray difference? While the conditions of exposure and uses of electroplated metal are so varied that it is not de? When such areas are designated, and thus made subject to minimum thickness requirements, the purchaser and the manufacturer shall recognize the necessity for either thicker deposits on other axtm or for special racking.

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.

The electrical resistance of this green layer passivation is very high because it is thick in relative to other passivations. The Zinc coating on the steel does not last shiny for long, and so a further thick layer coating is added, called rfee. The part is currently being produced in China and my local platers are suggesting a dye to get a blue color.


Test Method B provides a default plan if one is not speci? Unless a need can be demonstrated, separately prepared specimens shall not be used in place of production items for nondestructive and visual examinations. A number in parentheses indicates the year of last reapproval. The coating is made according to demand, where the distribution is as follows: Guide B provides a default plan if one is not speci?

Olive Drab chromate is aetm. Decorative charastreistics The exterior visual determined according to last layer. He passed away May 14, Zinc coating with colorless RoHS compliance passivation.

The type of passivation is determined according to the required characteristics, and is divided into groups:. Except as otherwise speci? BBBBand B Hi, I recently received aatm batches of parts from two separate platers using this specification. Zinc coating with colorful chromate passivation. It is recommended that the following appropriate recommended practices and guides be used: From beautiful Pine Beach New Jersey: The purchaser may similarly require that a report of the test results be furnished.

Obviously, this must be clarified by the customer. To me “bright blue” does not usually literally mean “bright blue” like the sky or a robin’s egg.

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 h633 for the steel based on its tensile strength.

The end user must decide when a part fails, at “white rust” corrosion the chromate has failed or red rust both the chromate and the zinc are gone exposing the base metal. Ashm, some yellow chromates are clear w. How do you know if it is supposed to be Zinc Yellow or Zinc Clear? For these reasons a?


The following data, based on worldwide testing, can be used to compare the behavior of electrodeposited coatings of zinc in various atmospheres. As much as the last layer of the passivation is thin the electrical resistivity is low.

Don Penzenik – Elkhart, Indiana. What do you say? Yellow-iridescent Black Olive Green. Regarding the question asked in letter ; Type II zinc plating vs.

Zinc Plating: ASTM B Type II vs. III

The test must yield a numeric value and certain statistical requirements must be met. Iridescent and Colorless passivation is thin and has low electrical resistance. Different brands of chromate conversion chemistry, possibly different plating h633 acid zinc vs. The electroplated article shall be clean and free of damage. Could you explain this? II says “colored chromate coatings” meeting 96 hours of salt spray, and III says “colorless chromate conversion coatings” meeting 12 hours of salt spray.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? What type of zinc plating bath is your plater using? If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. The purchaser retains the right to perform any of the inspections and tests set forth in this speci?

The chromate, passivate, or supplemental? Thank you for your hard work which the finishing world continues to benefit from. B — 07 Standard Speci?