Letter 14626

Removing of hard chrome coating  

 

Hi,

I want to remove the hard chrome coating deposited on the steel 4130. Any suggestion will be much appreciated. Thanks a lot.

Mahdy FATEMY
- Tehran, Iran

 

Dear Mr Mahdey,

You can remove chromium from steel anodic in a solution of about 150-250 g/l sodium hydroxide. The voltage is about 2-6 V.

Kind regards,


Sjamp van Esch
- Eindhoven, The Netherlands

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