Grades Designed for Machining Cast Iron

Sandvik Coromant has introduced two grades for machining cast iron. GC3225 and GC3210 form a new insert grade chain covering all cast iron turning operations for both gray and nodular cast iron materials.

GC3225 was designed to provide secure and trouble-free machining in difficult cutting conditions.

GC3210 is a grade with high flank wear resistance was designed for good to average machining conditions. According to the company, it enhances reliability and productivity in intermittent cuts, high cutting speeds, wet and dry machining, machined surface, and light cast skin.

To provide the edge-line security and wear resistance necessary to optimize performance, the grades have a CVD coating combined with a fine-grained hard substrate. Additionally, their design utilizes optimized microgeometries to facilitate light cutting action, which reduces cutting forces and improves tool life.