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Cold and Cryogenic Treatment of Steel

Author: Revised by F. Diekman, Controlled Thermal Processing   |   Document Download   |   Product code: ZASMHBA0005822

Price: $30.00 Member Price: $24.00

Cold treating of steel is widely accepted within the metallurgical profession as a supplemental treatment that can be used to enhance the transformation of austenite to martensite and to improve stress relief of castings and machined parts. Common practice identifies –84 °C (–120 °F) as the optimal temperature for cold treatment. There is evidence, however, that cryogenic treatment of steel (also referred to as deep cryogenic treatment, or DCT), in which material is brought to a temperature on the order of –184 °C (–300 °F), improves certain properties beyond the improvement attained at cold treatment temperatures. This discussion explains the practices employed in the cold treatment of steel and presents some of the results of using cryogenic treatment to enhance steel properties.