Nickel Aluminium Bronze and Inconel

[apf]

Would there be any reasons not to use nickel aluminium bronze and inconel in the same environment.

 

[SJones]

In what sense: electrically connected? What environment? Coupled in seawater, the NAB will be the anode and will suffer enhanced corrosion. How much depends on many additional factors.

Steve Jones
Materials & Corrosion Engineer

http://www.linkedin.com/pub/8/83b/b04

 

[EdStainless]

NAB has pretty good corrosion resistance, but a couple with 625 would drive selective dealloying. If they are not coupled it should be fine.

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Plymouth Tube

 

[apf]

They would be coupled together to form a valve body and seal and would be in contact with seawater.

 

[strider6]

why did u, or the supplier, choose a 625 for a seawater service?

S

Corrosion Prevention & Corrosion Control

 

[apf]

We normally would be using Monel 400 but have no stock. We need to find a replacement material fast and have 625 in stock.

 

[EdStainless]

I would not suggest that 625 has good enough crevice corrosion resistance for a seawater valve seat. Try looking for one of "C" type alloys.

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Plymouth Tube