ASTM B633 includes four classifications. Each classification specifies both Type and Service Condition:Type (Type I,II,III,IV,V, or VI) – to determine which supplemental treatment or chromate to apply. Service Condition (SC1, SC2, SC3 or SC4) – to define the minimum plating thickness ...
ASTM B633 - Conversion Coating vs. PassivateQ. Table II of ASTM B633, mentions "passivates" Types V & VI in addition to "chromate conversion coatings", Types II & III. What are the "passivate", Type V & VI coatings? Are the "passivate" coatings really just a chromic or nitric acid ...
ASTM B633-13 B633 13 《ASTM B633-13》由会员分享,可在线阅读,更多相关《ASTM B633-13(6页珍藏版)》请在人人文库网上搜索。 Designation:B633 13 Standard Specication for Electrodeposited Coatings of Zinc on Iron and Steel 1 This standard is issued under the xed designation B633; the number immediatel...
For instance ASTM B633 Types V and VI use a non hexavalent coating. I'm wondering about ASTM B841 though. I don't see any specific language in the spec that any Type is RoHS compliant. I do see that it uses a chromate conversion coating without any mention of non-hex or trivalent. ...
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