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ted_yosem
Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
finishing.com -- The Home Page of the Finishing Industry

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  -----

What is Malcolmizing Process

Q. I need the technical specification for stainless steel Malcolmizing process. I need to show the higher ups what this process does.

Michael S Roll
- Chesapeake Virginia
2000


Q. I have the same question as you. Did you find an answer?

Mark Westerman
- Wichita, Kansas, USA
2001


Q. I WANT TO NITRIDE 17-4PH STAINLESS STEEL IN GAS NITRIDING FURNACE. DEPASSIVATION OF 17-4PH STAINLESS STEEL IS ESSENTIAL TO PREPARE THE SURFACE TO NITRIDE IT. WHAT DEPASSIVATION PROCESS DO YOU SUGGEST TO TREAT 17-4PH STAINLESS STEEL? IF ANYONE HAS INFORMATION HOW TO DEPASSIVATE STAINLESS STEEL (17-4PH) BEFORE NITRIDING OPERATION BEGINS IN GAS NITRIDING FURNACE, I WOULD APPRECIATE THEIR FEEDBACK.

ANY INFORMATION ON DEPASSIVATION OF 17-4PH STAINLESS STEEL TO CARRY OUT NITRIDING (MALCOMIZING) WOULD BE OF GREAT HELP TO ME. IF ANYONE HAS DONE NITRIDING ON 17-4PH SS, THEIR OPINION IS MOST WELCOME.

THANKS.

ISMAIL VAHORA,P. Eng.(Metallurgy)
- Mississauga, Ontario, Canada


Q. I am looking for information on a process called Malcomizing.

Mark Brown
- Cleveland, Ohio USA
2002


A. Yo, Mark & Mike!

Malcomizing is a trade name of Lindberg Heat Treating company, now a part of the Bodycote empire. Malcomizing is their old name for their process of nitriding stainless steel, which they now call "Lintride SS". Contact any of their plants, and they should tell you all about it. Realize that since it is a trade named process, "Malcomizing" does what they say it will do; no more, no less.

lee gearhart
Lee Gearhart
metallurgist - E. Aurora, New York


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A. A Yahoo search on malcomizing yielded a number of sites. The number one site said: "This is a proprietary method of gas nitriding for some stainless steels and ductile iron." There were others, including vendors.

James Totter
James Totter, CEF
- Tallahassee, Florida


A. Malcomizing is a proprietary Nitride process for Inconel and like alloys which is owned by the Lindberg Heat Treat Company. It has a thinner build-up (.0004-.0007") than traditional nitride.

Bill Allphin
- Spanish Fork, Utah


A. Malcomizing is a nitriding process for stainless steels which allows the near surface (typically .005" case depth) to be hardened up to 65 HRC.

Craig Zimmerman
- Oak Creek, Wisconsin
November 9, 2011




Q. Does the Malcomizing process have any spec to go by? Or can we use any other specs instead since it seems Bodycote uses the same procedure just different name.

Carolina Karjanis
- Tucson, Arizona USA
May 3, 2019




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