Tungsten carbide is an indispensable material for the manufacturers of precision parts and tools. Not only large industrial companies but also small artisan establishments are now using the tungsten carbide round bars for their different industrial applications.

1. The applications of tungsten carbide round bar in various sectors
Tungsten carbide is an indispensable material for the manufacturers of precision parts and
tools. Not only large industrial companies but also small artisan establishments are now
using the tungsten carbide round bars for their different industrial applications. These
products come in various sizes in the form of unfinished round bars made of rods. All rods
round bars are available with central, parallel or twisted coolant holes. Manufacturers
usually produce finished round bars made of K10, K20, K30 and other types of rods. The
different types of tungsten carbide round bars are available in the models under the
following below mentioned types-
• 1 central coolant holes
• 2 parallel coolant holes
• 2 twisted holes 30”
• 2 twisted holes 30/40”
• 3 twisted holes 30/40”
These carbide round bars comes with the size of 2mm diameter x 100mm long and these
bars are well suited to cutting curves and that too exclusively for cutting pivots. For watch
making lathes, 2mm tooling is most suitable. The application of these carbide round bars as
rotary burs tools is quite popular. These are also used in making the drill bits/end-
mills/reamers and as automobile special cutters, printed circuit board, special cutters,
graver etc. In addition, they can also be used for making cemented carbide stamping head,
core bar and perforation tools. Majority of round bars are manufactured by Chinese based
manufacturers are exported to USA, Canada, Italy, Turkey, Malaysia and Thailand.
These products are made from 100% virgin material with ISO 9001:2000 Certificate. The
following below mentioned table lays down information about 2/G Grade and specification
of rods as manufactured by the some of the suppliers of the tungsten carbide round bars
as per the requirements of the customer specifications.

2. GRADE of
carbide bars
ISO
CODE
COBALT
CONTENT
DENSITY HARDNESS TRS
(%) g/cm³ HRA N/mm²
K10T K05-K10 4.5-6.0 14.95-
15.05
92.7 1800
YG8 K30 8 14.8 89.5 2200
YG6 K20 6 14.95 90.5 1900
YG6X K10 6 14.95 91.5 1800
YL10.2 K30 10 14.5 91.8 2400
YG13X K30-K40 13 14.3 89.5 2600
YG15 K40 15 14 87.5 2800
The qualities and dimensions of the round bars can also be depicted in a tabulated format
as mentioned below-
Material Carbide
grades
Length (mm) Model
Rods K-10DIA 330
Rods K-20F 330
Rods K-40UF 330
Rods K-44UF 330
Rods K-55SF 330
Rods K-40UF 330 1central coolant
holes
Rods K-20F 330 2parallel coolant
holes
Rods K-40UF 330 2parallel coolant
holes
Rods K-20F 350 2parallel coolant
holes
Rods K-44UF 330 2 twisted holes
30°
Rods K-40UF 161/250/261/285/330 2 twisted holes
30/40°
Rods K-40UF 330 3 twisted holes
30/40°