Cemented Carbide Products

  • We produce and supply high quality Cemented Carbide products created by unique and optimistic combination of nano materials (ultra fine granule) and SPS (Spark Plasma Sintering) technologies.
Ceramic Carbide products SPS System
(Tunnel type/5 Chambers)
  • Particularly, "NJS Binderless Cemented Carbide" series consisting of pure WC (Tungsten Carbide) achieve extremely high features in Hardness, Wear Resistance, Heat Resistance, Corrosion Resistance, etc, suitable for such application like high-end Aspheric Lens Grass Mold which demands high precision and long life under high temperature environment.

NJS Binderless
Cemented Carbide 		Conventional Cemented Carbide
with binder agent (Co)
Comparison of SEM micrographs

Download (NJS Cemented Carbide Products catalogue)

Advantage / Physical Properties of NJS Cemented Carbide Products

Nano Materials
(Ultra fine granule) 		Extremely high
Hardness/Density 		Binderless
(Pure WC)
  • Excellent at Wear resistance / Plastic deformation resistance / Specular working /
    Hear resistance / Corrosion resistance / Peel resistance / Oxidation resistance /
    Thermal expansion
Physical Properties
Type Grain
size
(μm)		 Density
(g/C㎡)		 Hardness
(Hv)		 Transversal
Rupture
Strength
(MPa)		 Pressure
Resistance
(MPa)		 Fracture
Toughness
(KIC)		 Thermal
Conductivity
W/M･K)		 Thermal Expansion
Coefficient 10-6/K
(N2 atmosphere)
400°C 600°C 800°C
WC100
(Binderless)		 <0.08 15.6 2700 1470 8120 5.6 - 4.8 4.9 5.1
M78
(Binderless)		 <0.2 15.4 2600 1500 8120 5.1 40.1 4.7 4.9 5.0
TC10
(Co 4％)		 <0.5 15.0 2150 2640 - 6.5 63.0 - - -
TC20
(Co 6％)		 <0.5 14.8 2050 2940 - ?.3 67.0 - - -
The values above are for reference, not for guarantee.

Typical Applications

  • Suitable for High precision Press Stamping Die & Punch / Aspheric Lens Glass Mold /
    Powder Compacting Die / Blasting Nozzle / Water Jet Nozzle / Slitting & Cutting Tool /
    Ball Milling Part / Forming Roll / Ultra precision wear-resistant mechanical component /
    Mechanical Seal / Canning & Sheet Metal Working Tool/ etc.