• Hardcastle Petrofer Private Limited

Heat Treatment Salts

Hardcastle Petrofer Private Limited, a joint venture between the Jatias of Hardcastle Group and the world renowned Petrofer Germany, offers a range of Hisalt Series of Heat Treatment Salts. This includes neutral hardening salts for pre-heating, austenising, and quenching of high speed steels and marquenching; austempering salts for tempering and drawing of variety of steels including spring steels; water additive salts for accelerated quenching of plain carbon steels to achieve maximum hardness; blackening salts for surface finishing of components after heat treatment; blueing salts for surface finishing to enhance aesthetics in tools, band saws, hacksaws; salt bath cover for preventing surface oxidation in salt baths at high operating temperatures; and salt bath rectifier to prevent surface decarburisation and to keep the bath chemically clean.