Cyanide Bath For Tool Steels

: HEAT TREATMENT OF STEEL
: The Working Of Steel

All high-carbon tool steels are

heated in a cyanide bath. With this bath, the heat can be controlled

within 3 deg. The steel is evenly heated without exposure to the

air, resulting in work which is not warped and on which there is no

scale. The cyanide bath is, of course, not available for high-speed

steel because of the very high temperatures necessary.



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