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Grade System for Threading Applications

Grade Selection Table

TypeGradeCoatingComposition and Application Area of use
Wear resistance Toughness C-Class
Standard designation 05 1015202545303540 composition: application: The K68 grade has excellent abrasion resistance formachining cast irons, austenitic stainless steels, non-ferrous metals, nonmetals, and most high-temperature alloys. Use as a general purpose grade for non-ferrous materials. A hard, low binder content, unalloyed WC/Co fine-grained grade. P M K

K68

N
Uncoated Carbide Grades S H composition: application: The KC5010 grade is ideal for finishing to generalmachining of most workpiece materials at higher speeds. Excellent for machining most steels, stainless steels, cast irons, non-ferrous materials and super alloys under stable conditions. It also performs well machining hardened and short-chipping materials. C3 – C4 An advanced PVD TiAlN coating over a very deformation-resistant unalloyed WC-Co substrate. P

KC5010

M K N S H C3, C4 composition: application: For general purpose machining of most steels, stainlesssteels, high-temperature alloys, titanium, irons, and non-ferrous materials. Speeds may vary from low to medium, and will handle interruptions and high feed rates. An advanced PVD TiAlN-coated grade with a tough, very fine grain unalloyed substrate. P M K N
TECHNICALDATA TECHNICALDATATOPNOTCHLT S C2, C6 H composition: A PVD TiB2 coating over a very deformation-resistantunalloyed substrate. P M application: The KC5410 grade is designed for roughing,semifinishing, and finishing of free machining (hypoeutectic <12.2% Si) aluminum, aluminum alloys and magnesium alloys. The TiB2 coating is harder than TiN and TiAlN coatings and has an extremely smooth surface, resulting in reduced surface friction, speedy chip flow, and outstanding wear resistance. In addition, built-up edge is prevented because this coating has a very low affinity for aluminum. The substrate is unalloyed and fine grained and offers sharp edges, smooth surfaces, and excellent thermaldeformation resistance and edge integrity. Inserts with a groundperiphery are polished before coating and have a sharp edge. Molded inserts have a light hone. K N S
THREADING TOOLS

KC5410 KC5025

H
PVD-Coated Carbide Grades composition: An advanced PVD coating over a tough and highlywear-resistant carbide substrate. P M

KU25T

application: KU25T is ideal for finishing to general machining of most workpiece materials. This grade provides the toughness needed to handle the demands of grooving, threading, and cut-off operations. KU25T performs extremely well when machining most steels, stainless steels, cast irons, non-ferrous materials, and superalloys under stable conditions. KU25T can also be effectively applied when machining hardened and short- chipping materials. K N S H C2, C6 composition: application: Ideal for high-speed finishing to medium machiningof most carbon and alloy steels and stainless steels. Performs very well in cast and ductile iron applications too. Provides long and consistent tool life and will produce excellent workpiece finishes. C3 A multi-layered, PVD TiN/TiCN/TiN, coated cermetturning grade. P M K N S H

KT315

PVD-Coated Cermet C3, C7

C3