Working Range 970 - 1350 C . Salt for heating High Speed steels and Hot Working steels to the appropriate hardening temperature without scaling or decarburization.

Working Range 830 - 1100 C. For hardening stainless steel, hot work steel or 2 % carbon, 12 % chromium

Working range 720 - 900 C ( 950 C if covered with Economiser ) Water soluble neutral hardening salt used with Regenerator for hardening various tool steels and selectively carburized steels, sometimes used without regenerator, but with 1 - 10 % Na CN as scale - free heating medium. Also used for brazing.

Working Range 660 - 900 C ( 1000 C if covered with Economizer ) Neutral salt for hardening tool steels and selectively carburized steels; also used for preheating Hot Die Steel and High Speel Steel prior to hardening in Heatchem 970 / 971

Working range 495 - 700 C. Specially developed for quenching / secondary hardening lean high speed steel tools. Similar to Q CHEM 540 but has lower melting point an is more hygroscopic.

Meant for quenching high speed steel and hot working steel tools after heating in HEATCHEM 970 / 971 . Also used for secondary hardening of high speed steel tools and tempering.

Working range 160 - 550 C. Used for tempering after hardening ; also used as a quenching bath in mar-tempering an as a quenching cum transformation bath in austempering.

Working range 230 - 550 C. Used for tempering after hardening. Also used for producing temper colors and mottled finishes. Suitable for a quenching / transformation bath when austempring work heated in muffle furnaces.

ECONOMISER: Used for forming a surface layer on salt baths for hardening. Prevents fumes, conserves bath strength and increases pot life.

REGENERATOR: To be used along with HEAT CHEM 660, HEATCHEM 720 to keep these baths non - decarburizing.

Working Range 155 - 540 C. A heat transfer salt for use in large chemical or oil cracking installation as a heating or cooling medium