Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Make up AMS-M3171 type III with technical grade dichromate?
January 13, 2011
Hello Srs.
We want to start up a line for treatment type III (AMSM3171) the doubt we have is if we can use dichromate technical grade to make up the solution?
regards
manufacture engineer - Chihuahua, Mexico
As I recall, your only requirement is that all materials shall be of good quality. Technical grade is really all that is reasonably available and it is generally what is used.
Jon Barrows, MSF, EHSSC
GOAD Company
Independence, Missouri
January 14, 2011
April 15, 2011
Hello
what is the color we should get in the parts after dichromate treatment, according to the spec a black or gray color is normal, but a dark brown, is still good?
regards
- Mexico
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