PCBN Cutting Tool Blanks

Product Introduction

PCBN composites sintered from cubic boron nitride powder onto a carbide substrate. Hardness second only to diamond with red hardness up to 1,400 °C for high-speed dry cutting of hardened steel and cast iron — turning instead of grinding. CBN content from 50% to 95%.

PCBN composites are superhard composite materials sintered from cubic boron nitride (CBN) powder and binders onto a cemented carbide substrate under high pressure and high temperature. Chemically stable at high temperature, they do not react with ferrous metals — no built-up edge, clean and stable surfaces — and can replace grinding operations for higher efficiency and lower cost.

Standard specifications

Grade	CBN content (%)	Diameter (mm)	Standard overall thickness (mm)	PCBN layer thickness (mm)	PCBN surface
G95	95	71	1.6, 2.4, 3.2	0.7 – 1.0	Polished or unpolished
G90	90	71	1.6, 2.4, 3.2	0.7 – 1.0	Polished or unpolished
G80	80	71	1.6, 2.4, 3.2	0.7 – 1.0	Polished or unpolished
G70	70	71	1.6, 2.4, 3.2	0.7 – 1.0	Polished or unpolished
G60	60	71	1.6, 2.4, 3.2	0.7 – 1.0	Polished or unpolished
G50	50	71	1.6, 2.4, 3.2	0.7 – 1.0	Polished or unpolished