plating, anodizing, & finishing Q&As since 1989
Cleaning up MONEL 400 after fabrication
WE ARE MAINLY A STAINLESS STEEL FABRICATION FIRM SUPPLYING CUSTOMERS FROM START TO FINISH OF STAINLESS STEEL WELDMENTS AND RECEIVED A REQUEST TO FABRICATE AND WELD MONEL 400 AND WOULD LIKE TO KNOW POSSIBLE CLEANING PROCESSES FOR THE SURFACE OF MONEL 400 USING SAND WHEEL?, CLOTH WHEELS?, STAINLESS WHEELS?, OR ? BEFORE AND AFTER WELDING (WILL BE TIG WELDING) TO AVOID THE MINIMUM AMOUNT OF DAMAGE TO SURFACE OR GETTING CORROSIVE AFTER TIME.BRIAN DITTEL
Why not try 'Special Metals' and their UK counterpart, 'Special Metals Wiggin'.
THESE are the top monel ... and other nickel alloy ... producers.
Wiggin was ahead with their Nimonic series for jet turbine blades.
Freeman Newton [deceased]
(It is our sad duty to advise that Freeman passed away
April 21, 2012. R.I.P. old friend).
If you only want to clean the weldments glass bead blasting sounds perfect to me. If you also want to dress, sand wheels combined with the glass may be OK.Guillermo Marrufo
The answer to your question depends on the service the MONEL will see. Unlike many stainless steels, nickel base alloys often do not require a removal of the HAZ or passivation treatment. You will not hurt the MONEL by sanding or pickling it but again, much of what is required and is prudent depends on the service.Nate Eisinger
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