New turning grades for Cast Iron and Cast Stainless Steel
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Mitsubishi Materials has expanded its comprehensive range of premium insert grades for turning. BC5110 is a specially coated CBN specifically for machining grey cast irons such as GG25 and GG30. Whereas the MH515 grade is a CVD coated carbide grade designed for cast austenitic stainless steels as well as ductile cast iron.
The new BC5110 delivers a variety of performance and benefits by drawing on the vast R&D work built up over years of producing other high performance CBN grades. This work has created a composition of a fine grain, high CBN content substrate that greatly improves chipping resistance. This results in process reliability and longer tool life. Meanwhile, the hard ceramic coating layer adds to the user benefits by providing wear and notching resistance to help machine excellent component surface finishes.

