JasonLouie
Materials
- Aug 13, 2007
- 56
Hello,
API 600 CN 9 (Trim 9) just states NiCu alloy. Does this mean Monel 400 or does this mean any combination of nickel and copper? I did not see reference to Monel anywhere in API 600 (the older copies of API 600 used to say Monel).
Also, I received a corrosion resistant weld overlay weld procedure for applying Monel to a valve seating surface. There is only one layer of Monel so obviously there is a lot of iron dilution into the overlay. For seating surfaces, is it normal to only use single layer overlays? If so, is 25% Fe content acceptable for CN 9?
I appreciate any insight you may have on this!
API 600 CN 9 (Trim 9) just states NiCu alloy. Does this mean Monel 400 or does this mean any combination of nickel and copper? I did not see reference to Monel anywhere in API 600 (the older copies of API 600 used to say Monel).
Also, I received a corrosion resistant weld overlay weld procedure for applying Monel to a valve seating surface. There is only one layer of Monel so obviously there is a lot of iron dilution into the overlay. For seating surfaces, is it normal to only use single layer overlays? If so, is 25% Fe content acceptable for CN 9?
I appreciate any insight you may have on this!
