Zinc plate and passivate clear using a Cr 3 (instead of Cr 6) process.

So you end up with a silver/bluish finish. May also depend on what the

application is - if you need something very resistant you may need to

look further.



Regards, 

Chris





-----Original Message-----

From: Leadfree [mailto:[log in to unmask]] On Behalf Of Phil Nutting

Sent: 25 August 2006 13:58

To: [log in to unmask]

Subject: [LF] RoHS coatings for Steel



Hi all,

 

Much of our sheet metal is aluminum and we have addressed changing our

spec from Hex-chrome to Tri-chrome or Non-chrome Iridite.  We have a few

parts that are steel (cold rolled) and in the past they have been plated

with "yellow zinc".  What is the RoHS compliant plating for CR steel?

 

Thanks in advance,

 

Phil



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