WIDIA ™ VariTurn ™
Grades and Grade Descriptions
Coatings provide high-speed
capability and are engineered
for fi nishing to heavy roughing.
P Steel
M Stainless Steel
K Cast Iron
N Non-Ferrous
S High-Temp Alloys
H Hardened Materials
wear
resistance
Coating
toughness
05 10 15 20 25 30 35 40 45
Grade Description
P
M
Coated carbide. MTCVD-TiN-TiCN-Al2O3-TiN. Ideal for general-purpose
machining of stainless steels.
S
HC-M30
P
Coated carbide. MTCVD-TiN-TiCN-Al2O3-TiN. Great when used for straight
or lightly interrupted cut applications of ductile and cast irons.
K
HC-K20
P
M
Coated carbide. PVD-TiAlN-TiN. Ideal for fi nishing of diffi cult to machine
alloys and stainless steels.
K
N
S
HC-S10
P
M
Uncoated carbide. Excellent abarasion resistance for machining cast irons,
austentic stainless steels, and most high-temperature alloys.
K
N
S
widia.com
B121
HW-P15