Galling resistant austenitic stainless steel alloy

Details Galling resistant austenitic stainless steel alloy Galling resistant austenitic stainless steel alloy

C - Chemistry, Metallurgy

22

C

75/120

C22C 38/58 (2006.01) C22C 38/60 (2006.01)

Patent

CA 1335761

A galling and corrosion resistant austenitic stainless steel alloy is disclosed containing in weight percent about w/o Carbon 0.25 Max. Manganese 2.0-7.0 Silicon 1.0-5.0 Phosphorus 0.05 Max. Sulfur 0.3 Max, Chromium 12-20 Nickel 2.0-7.75 Molybdenum 3 Max. Copper 3 Max. Nitrogen 0.35 Max. the balance being essentially iron. To attain its unique properties the alloy must be balanced so as to contain no more than about 10% ferrite. The %Ni + 1/2(%Mn) must not be less than 5.5% and not greater than 1/8[11(%Si) + 42], and the sum of the (%C + %N) is at least 0.15%. Care must be taken that when the amount of silicon present is less than about 2.25%, at least about 4.0% manganese is present.

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