Ceramic Grades
About Ceramic Grades
We offer the various kinds and the shapes to suit your applications.
Main Products
Ceramics series（Alumina-based Ceramics）HC1・HW2
Application
Semi finishing and/or finishing operation for gray cast iron, engine liner, tube scarfing etc.
Features
This series is mainly composed of high purity alumina with high dentisy and fine grain. It gains the chracter of high hard, stable at high temprature and chemicaly stable.
This series has a good wear resistant at high speed finishing of gray cast iron.
Ceramics series（Alumina TiC-based Ceramics）HC2・HC4・HC6・HC7・ZC7
Application
Semi finishing and/or finishing operation for gray cast iron and ductile. Even for hard turing available.
Features
Adding TIC compound to high purity alumina composition, so that it gains toughness.
This series keeps the hardness and toughness at high temprature, so that it matches to machining after sintering material.
Ceramics series（Whisker-based ceramics）WA5・WA1
Application
Cutting heat-resitant alloys, such as Inconel, Waspalloy, etc., and gray cast iron.
Features
This grade realizes a higher level if wear resistance, toughness and flaking resistance by adding SiC whiskers to major composit of alumina.
Ceramics series（Silicon nitride-based ceramics） SX6・SX7・SX9・SP9
Application
SX6 & SP9 is suited for rough opertation in turning and milling for gray cast iron. And SX7 & SX9 is suited for high speed machining for heat-resistant alloy, Inconel.
Features
This grade realizes a higher level if wear resistance, toughness and flaking resistance by adding SiC whiskers to major composit of alumina.
Please visit the website of "NTK CUTTING TOOLS" for the latest information and consultation about cutting tools.