Page 48 - Master Catalog 2017, Inch

WIDIA Inserts
™
Grades and Grade Descriptions

Coatings provide high-speed P Steel
capability and are engineered M Stainless Steel

for finishing to heavy roughing. K Cast Iron
N Non-Ferrous
S High-Temp Alloys
H Hardened Materials

wear
resistance toughness
Coating Grade Description 05 10 15 20 25 30 35 40 45

Uncoated carbide. Extraordinarily good balance of hardness, wear resistance, K
THM edge stability, and toughness. Light and medium machining. For cast iron,
all non-ferrous metals, and non-metals. Useful in unfavorable conditions. N
S
HW-K15 H
P
M
TTM Uncoated carbide. Medium machining. For steel.

Grade HW-P25 P

TTR Uncoated carbide. Light and medium machining. For steel.
To be used at low cutting speeds. Effective in unfavorable conditions.

HW-P35
P
M
TTI15 Cermet. Light machining. Extremely good wear resistance at higher cutting speeds. K
For steels and nodular cast iron. Recommended for high cutting speeds under
favorable conditions.

HT-P15

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