Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
-----
Etchant to remove steel tubing from aluminum structure
Have an application requiring steel tubing be cast-in an aluminum structure for cooling passages. The steel tubing needs to be removed for CTE issue. Is there an etchant that will remove the carbon or stainless steel tubing but not harm the A-356 aluminum?
Bruce Chisholmmachine component design - Orlando, FL, US
2003
Nitric Acid will dissolve carbon steel readily (and also martensitic stainless series 400 though slowly) without significant attack on aluminum. Nitric is toxic, fuming and very aggressive to all forms of life, so extreme care should be taken. Disposal of waste according to local regulation after neutralization is mandatory.
Guillermo MarrufoMonterrey, NL, Mexico
2003
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Q, A, or Comment on THIS thread -or- Start a NEW Thread
Q, A, or Comment on THIS thread -or- Start a NEW Thread