corrosion of monel 400 in salt refinery

monel 400 is used as the base material for
our pans . would i be mistaken in thinking that a
type of hastelloy would be a better choice in corrosion
resistenc?

 

[mcguire]

Hastelloy C-276 is quite superior to Monel 400, as is Hastelloy B.

 

[rolledalloy]

I have seen AL-6XN (6% Moly Stainless) used extensively to replace alloy 400 (monel) in salt refining applications such as dryers and conveyor systems for hot salt. It has been more resistant to the abrasion/corrosion by the salts than the alloy 400. This would be a more cost effective alloy than a Hastelloy.

 

[rolledalloy]

I have seen AL-6XN (6% Moly Stainless) used extensively to replace alloy 400 (monel) in salt refining applications such as dryers and conveyor systems for hot salt. It has been more resistant to the abrasion/corrosion by the salts than the alloy 400. This would be a more cost effective alloy than a Hastelloy.

Recently such corrosion issues at a Morton Salt plant were discussed in a Stainless Steel World Magazine article

http://www.stainless-steel-world.net

 

[mcguire]

Rolledalloy has a valid point and you need not restrict your choice to AL-6XN, a proprietary alloy of Allegheny-Ludlum. Avesta-Polarit has a portfolio of highly corrosion resistant stainless steels, both austenitic and duplex.