Ammonia and stainless steel, corrosion
Ammonia and stainless steel, corrosion
(OP)
Hi there,
hope everything is fine.
Please, I would be grateful if somebody could help me in following topic.
I have red following topic
thread338-273391: ammonia-steel
but I am afraid it doesn't answer completely my question.
Following is the topic:
Ammonia is not corrosive for stainless steel without presence of water or condensate.
From the same topic I can quote
<<Unless you are at extreme temperature, pressures, and concentrations; any SS will have a near zero corrosion rate>>
(mr. EdStainless )
Should water be present with the ammonia, are there risks of corrosion ?
The presence of water be even in form of water condensate.
the stainless steel I would be interested is AISI 304 or AISI 316
Thanks for your help.
hope everything is fine.
Please, I would be grateful if somebody could help me in following topic.
I have red following topic
thread338-273391: ammonia-steel
but I am afraid it doesn't answer completely my question.
Following is the topic:
Ammonia is not corrosive for stainless steel without presence of water or condensate.
From the same topic I can quote
<<Unless you are at extreme temperature, pressures, and concentrations; any SS will have a near zero corrosion rate>>
(mr. EdStainless )
Should water be present with the ammonia, are there risks of corrosion ?
The presence of water be even in form of water condensate.
the stainless steel I would be interested is AISI 304 or AISI 316
Thanks for your help.





RE: Ammonia and stainless steel, corrosion
RE: Ammonia and stainless steel, corrosion
Therefore may I understand that water in NH3 somehow improves stainless steel corrosion resistance ?
Many thanks
RE: Ammonia and stainless steel, corrosion
RE: Ammonia and stainless steel, corrosion
RE: Ammonia and stainless steel, corrosion
But I am afraid of not getting the point.
If I have a tube in Stainless Steal (AISI 304 or 316) with some water, or water drops, and then I let ammonia passing into the same tube, is the presence of water affecting the corrosion resistance ?
Is it mitigating the corrosive action of ammonia, isn't it ?
Are there any literature references I can refer to ?
many thanks
RE: Ammonia and stainless steel, corrosion
With SS the water is no issue at all (doesn't help or hurt) unless it has some chlorides in it.
= = = = = = = = = = = = = = = = = = = =
Plymouth Tube