Technical Information
Tapping Guide
coating properties and application precautions
Titanium Nitride
(TiN) Proprietary TiN coating (hardness 2300 Vickers) offers
signifi cantly improved wear life and thread fi nish, often at higher
tapping speeds, in a broad range of materials, especially steels,
irons, and plastics.
Golden colour. Use with caution in non-ferrous materials such as
aluminium because of tendency to gall.
Use with caution in non-ferrous materials such as
aluminium because of tendency to gall. TiAlN is a better
choice when used at extreme temperatures.
Titanium Nitride +
Chromium Carbide
Carbon
(TiN + CrC/C) Proprietary coating (hardness 2300 Vickers) that combines the
wear resistance of smooth TiN coating with a lubricous top layer
of chromium carbide carbon. Effective in stainless steel and non-
ferrous materials including aluminium and titanium. Ideal choice
for 300 series stainless steels, wrought, and die cast aluminiums.
Black/grey colour. Effective in both ferrous and non-ferrous materials.
Titanium Aluminium
Nitride
(TiAlN) Nanolayer TiAlN coating (hardness 3300 Vickers) offers improved
wear life and thread fi nish, especially in conditions where high
temperatures can be generated. Use for PH stainless steels and
nickel-based alloys like INCONEL ® .
Violet/grey colour. Use with caution in non-ferrous materials because of
tendency to gall.
Chromium Nitride
(CrN) CrN is medium hard (hardness 1800 Vickers) and has a lower
wear resistance than TiN, TiCN, and TiAlN. However, unlike these
coatings, CrN does not gall when used in some non-ferrous work
materials. Use for brass, bronze, zinc alloys, and magnesium
alloys.
Silver colour. Ineffective in ferrous materials.
Nitride
(MAXI #1) Hardened case extends wear life in abrasive materials. Use for
aluminium and other non-ferrous materials. Avoid on taper pipe, fast spiral, and small diameter
(<#6) or fi ne pitch taps due to tendency for
thread chipping.
Oxide
(SH-50) Helps prevent galling in ferrous (iron-based) materials. For free
machining steel. Use for steels, stainless steels, and irons. Has a tendency to cause galling in non-ferrous
materials such as aluminium.
Nitride and Oxide
(SH-47) Combines the benefi ts of nitride and oxide surface treatments.
For steels, stainless steels, and nickel alloys. See precautions for nitride and oxide surface
treatments.
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Y103
Titanium Carbonitride Proprietary TiCN coating (hardness 3000 Vickers) is harder,
tougher, and more wear resistant than TiN under conditions of
(TiCN)
moderate cutting temperatures. Like TiN, TiCN may be used at
higher cutting speeds in a broad range of materials, especially
steels and irons.
Blue-grey colour.