Fluid Cat Cracker @ 1,400F - CrC HVOF embrittlement - Spray and Fuse

[Luxeal]

I learned the hard way that HVOF-Cr3C2 can embritteled when exposed to 1,400F. Embrittlement leads to hardness increase, crack propagation and coating failure.

Customer suggests to switch from HVOF-Cr3C2 to NiCrB Spray-and-Fuse (C88). Does somebody experienced SF C88 at 1,400F? Knowing hardness and galling resistance at this temperature could be a good start.

Any other coating suggestion for such an application?

Luxeal

 

[hsbcn]

Hi Luxeal:

What pressure range are we talking about?

My focus: Alloy Valves Super Duplex Valves Monel Valves Incoloy Valves [link titanium-valves.com]Titanium Valves[/url] Hastelloy Valves

 

[Luxeal]

hi hsbcn,

300 class - 50psi



Luxeal