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You can applied a metal coating to the seal areas. Thermal Spray applied coatings. Which are used in the air and landbase turbines industries, chemical and refinerys. Plus some of the nickel base alloy are fused coatings which applied over 4140 and other heat treated materials are over 80,000...

Narl, I have seen this type of corrosion at the weld seams and other localized corrosion before. If you are going to clad again, use a nickel base alloy, not a 400 series SS. If you need to repair, and wish to use a different method and material. Please contact me. We have a field service that...

If you need information about corrosion coatings for offshore. Contact National Thermospray in houston. They replace all the Cr-coatings with hvof process coatings and they repair the ceramic coatings on the tensioner rod offshore and even do the machining offshore. Visit www.hvof.com

Mr. Housemouse A good material or coatings for your problem is a ceramic. First choices of material is Cr-oxide or Zr-oxide widely used in the chemial industry. Try to contact a metallizing company in your area that has a plasma unit. If no luck contact us at the below address. We have field...

Dear Sir: A good handbook is the ASM Handbook of corrosion data. Materials data series. Aluminum not the best choice. 300 series stainless and nickel base alloys are widely used but under some conditions stress corrosion can be a problem. Good Luck !! www.hvof.com