test for chrome after stripping operation

• Jan 30, 2018

• Thread starter
• #2

djhurayt

Mechanical

Jan 18, 2001

220

Did I say something wrong? This is not my field so maybe there is no test. Anybody ??? hello ??? am I alone in here ???

 

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• Feb 3, 2018

• #3

swall

Materials

Sep 30, 2003

2,767

What is the substrate?

 

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• Feb 5, 2018

• Thread starter
• #4

djhurayt

Mechanical

Jan 18, 2001

220

52100 (bearing steel) HRc 58-62

 

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• Feb 5, 2018

• #5

btrueblood

Mechanical

May 26, 2004

10,019

Um. That is an alloy with about 1.5% Chromium content by design, not sure you will be able to "strip" it of chrome without dissolving the part in acid, at which point the part is gone...

https://www.azom.com/article.aspx?ArticleID=6704

 

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• Feb 6, 2018

• #6

swall

Materials

Sep 30, 2003

2,767

A copper sulfate solution is commonly used to show presence or absence of plating after a stripping operation on ferrous substrates. In the absence of plating, the copper sulfate will "plate out" copper on the substrate. The copper can then be removed after the test with house hold ammonia

 

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