The Tungsten Carbide Grade group consists of uncoated, chemical vapor deposition (CVD) coated, and physical vapor deposition (PVD) coated materials. Each coated grade consists of various substrates of unalloyed (straight WC/Co) and alloyed (WC/TaC/TiC/NbC/Co) compositions.

Grades	Coating	Composition	Application	ISO Class
CVD Triphase Coated Carbide Grades
RC2003		A multi-layer CVD TiN/Al2O3/MT-TiCN/TiN coated carbide grade.	A CVD-coated grade with a cobalt enriched substrate. Designed for medium machining of ductile and cast irons as well as steels. Cobalt enrichment provides an optimum combination of toughness and deformation resistance.	K15-K30 P20-P25
RC3503		A TiC/TiCN/TiN coating on an extra-strong, cobalt-enriched substrate.	A triphase coating for general purpose machining of many workpiece materials. RC3503 finds its best applications in heavy cutting of low, medium, and high carbon steels as well as medium hardness alloy and tool steels	P20-P40 M25-M35 K30-K40* S25-S30*
PVD TiN (Titanium Nitride) Coated Carbide Grades
RC1502		A PVD-coated carbide grade.	A PVD TiN coating over a very wear resistant unalloyed carbide substrate. For general purpose machining of high temperature alloys and 200 and 300 series stainless steels.	P10-P20 M10-M20 K10-K20 N10-N20* S10-S20* H10*
RC745M		A multi-layer PVD AlTiN/ TiN coated carbide grade.	A new milling grade engineered for high productivity wet and dry milling of carbon, alloy, and austenitic stainless steels. The high thermal shock resistance of the tough carbide substrate combined with the patented multilayer coating provides long and reliable tool life in aggressive milling operations with or without coolant.	P20-P40 M25-M35 K20-K30* S25-S30*
RC2502		A PVD-coated carbide grade.	PowrNotch™ Grade with PVD TiN coating and tough substrate for general purpose applications in steels, SS, hi-temp alloys, cast irons, and nonferrous. Low to medium speeds with interruptions and high feed rates.	K20-K30 M20-M30 N20-N30 S20-S30
(*) ISO Class - Grade is minimally suited for this material.