Expert ForumsCorrosion

Topic: Re: Which stainless steel would resist ammonia or carbon dioxide corrosion?

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All grades of stainless steel resist corrosion by ammonia or corrosion by carbon dioxide to moderately high temperatures (100 °C). Copper alloys can be attacked by carbon dioxide depending on what oxidants, including dissolved oxygen, are present. Copper alloys can also suffer stress corrosion cracking and other forms of attack in ammonia service. A stainless steel seems like a better choice for this application.