Page 370 - Carmex - Metric Catalog 2021

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Mill-Thread Technical Section

Cutting Data

D-Thread type

MT7 Sub-Micron Grade with Titanium Aluminum Nitride multi-layer coating (ISO K10 - K20).
This is a general purpose grade, which can be used with all materials; it should be run at
medium to high cutting speeds.

Cutting Speed
ISO Materials
(m/min)
Low and Medium Carbon Steels <0.55%C 100 - 205
P High Carbon Steels ≥0.55%C 100 - 180

Alloy Steels, Treated Steels 100 - 140
Stainless Steels - Free Cutting 85 - 125
M
Stainless Steels - Austenitic 80 - 115
Cast Steels 115 - 155
K Cast Iron 75 - 145
Aluminum ≤12%Si, Copper 150 - 300
N
Aluminum >12% Si 150 - 300
Synthetics, Duroplastics, Thermoplastics 100 - 350
S Nickel Alloys, Titanium Alloys 45 - 95
Recommended FEED RATE: 0.07 - 0.15 mm

B12-8