What is the purpose and requirements of stainless steel welded pipe bright annealing

The bright annealing furnace is mainly used for the heat treatment of the stainless steel welded pipe under the protective atmosphere. When the requirements of using performance are not the same, the requirements on the microstructure of the bright annealing is different, bright heat treatment process is also different. 300 series austenitic stainless steel pipe typical heat treatment process is solid solution treatment. In the heating process in the carbide dissolve in austenite, heated to 1050~1150℃, appropriate thermal insulation for a short time, which make carbides are dissolved in austenite, and then cooled rapidly to 350℃, obtain supersaturated solid solution is uniform ...

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