Eighteen alloys were tested in hot ammonia atmospheres over long periods of time and results compared. Specific comparison was made of tests made in an ammonia converter and in a chemical plant ammonia line. Materials tested include 11 steels, 37 Ni/20 Cr, 60 Ni/15 Cr, 80 Ni/20 Cr, Inconel, Monel and 99.49 percent pure nickel. It was found that in several ammonia-bearing atmospheres of widely-varying nitride potential, the nickel-base alloys in the iron-nickel-chromium system were substantially more resistant to attack by nitrogen than those alloys richer in iron and chromium.

4.3.3, 6.3.10

Subject
Iron nickel chromium alloys, Materials, Stainless alloys, Nitrides, Nickel based alloys, Chromium, Ammonia, Commercial alloys, Corrosion behavior, Nitrogen, Monel alloys, Nickel, Nitriding
© 1961 National Association of Corrosion Engineers
1961
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