Neutral & Quenching Salts

Range :

• Hard Temp 660 : A neutral salt normally used with Hard Temp A 453 regenerator for hardening tool steel and selectively carburised steel. Also used for preparing initial melts of carburising salts Hard Temp H 402. The salt can be used for preheating hot die steels and high speed steels prior to hardening. Working Range: 660° to 900°C (upto 1000 0C if covered with Hard Temp E 452)
• Hard Temp 720 : A water-soluble neutral hardening salt normally used with Hard Temp A 453 regenerator for hardening various tool steels and selectively carburised steels. Sometimes it is also used with 1 – 10% sodium cyanide as a scale free heat treatment medium. Working Range: 720° to 900° C (upto 950° C if covered with Hard Temp E 452)
• Hard Temp 830 : The salt is used with Hard Temp A 453 regenerator for hardening chromium rust resisting steels B. S. En 36 A-D and B.S. En 57.Working Range: 830° to 1100° C
• Hard Temp 970 : Used for heating high-speed steels and hot work steels to the appropriate hardening temperature without scaling or decarburisation. Working Range: 970° to 1350° C.
• Hard Temp 495 : Used for quenching and secondary hardening of high-speed steels preferably where the temperature required is 500° to 540° C. Working Range: 495° to 700° C
• Hard Temp 540 : Specially developed for quenching high speed steels and hot work tool steels after heating in Hard Temp 970. It is also used for secondary hardening of high-speed tool steels and for tempering. Working Range: 540° to 700° C
• Hard Temp 660 : A neutral salt normally used with Hard Temp A 453 regenerator for hardening tool steel and selectively carburised steel. The salt can be used for preheating hot die steels and high speed steels prior to hardening. Working Range: 660° to 900°C (upto 1000°C if covered with Hard Temp E 452)
• Hard Temp F 666 : A neutral salt for use with Hard Temp F 750.