Varmtr wrote:As S/S barrel are 416R in the right conditions ammonia can cause corrosion and pitting. But CroMo barrels don't like extended sosk times with ammonia solvents hence Sweets say no longer than 15mins. Ammonia is also hydroscopic meaning it will absorb moisture out of the air.
Me personally I use Boretech.
Your thinking of hydrophobic (water repelling property), the property of attracting / absorbing water molecules is hy
groscopic .. anhydrous Ammonia, that is pure NH3, without water, would be hygroscopic, less pure not so much.
But yes, stainless will react/oxidise just at a different rate to other alloys of Iron (steel is a term describing many different alloy of Iron).There are many specs of stainless steel, each with different properties, different uses and vulnerabilities to various compounds....
Steel, regardless of type, should not be exposed to reactive chemical for any extended period regardless.... SS does oxidise. Dont think that a ss or Chro-Mo rifle is immune to rust. Just a lot more immune than carbon steel.