He is asking for more info on the difference between ASTM B [link by ed. to spec at TechStreet] type II and type III. Can anyone give me some direction on. ASTM B Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel. This specification covers requirements for electrodeposited. ASTM B Thickness classes for coatings: KEY: Classification #, Service condition, Thickness Fe/Zn 25, SC4 (very severe), 25um or ″ Fe/Zn 12, SC3.
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Section 11, Robhills Avc. Does plating make that big a difference knowing that it’s going to be painted also? This applies to all metals. Regards, Ted Mooney, P. Put the chromate on light.
ASTM B-633 Type II vs. III zinc plating
Answer is based upon pre versions of B, We have no amendments or corrections for this standard. Corrosion Resistance Requirements Types. For example, a cold-rolled steel As a result of large-scale and long-range tests conducted by ASTM and other organizations, tllere is excellent information on the corrosion behavior of zinc arid zinc coatings. A Iron or steel with zinc electroplate.
Already Subscribed to this document. Test Method 13 contains several plans and also gives instructions for calculating plans lo meet special needs.
You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. 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. They share, however, the most basic of metal finishing requirements: Please forgive any resultant repetition or failures of chronological order.
Please first log in with a verified email before subscribing to alerts. A light yellow would be better than a clear.
I have the exact same questions. Rest in peace, Ken. A heavy chromate will shear under paint and cause the paint to peel.
A superscript epsilon jr indicates an editorial change since the last revision or reapproval. Can anyone give me some direction on how to get the customer to accept going to clear. To determine the nature of accuracy or revision level please verify above data with current releases: Try using an acid zinc chloride bath and see if the casting covers.
ASTM htemational takes no positron respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. While thc conditions of exposure and uses of electroplated metal are so varied that it is not definitely possible to predict the exact life of articles protected by a coating of a given thickness, those usirig ziric coatings can draw on the wealth of practical experience at hand, supplemented by results of corrosion tests carried out over the years.
ASTM B – 11 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel
Need more than one copy? Did you ever get the answers you were looking for? This guide provides for two plans: August 31, A. III zinc plating A discussion started in but continuing through Q. From beautiful Pine Beach New Jersey: Hi, I recently received 2 batches of parts from two separate platers using this specification.
Electroplated springs and other puts subject to flexure sliall not be Ilcxed before the hydrogen embrittlement relief treatment. You can get g633-11 same finish only for blue axtm black hex chrome with tri substitutes, but not for yellow or olive as of yet.