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Spheric Trafalgar

Tungsten Carbide Cobalt Binder

General Information

Tungsten Carbide materials have a unique combination of properties, high compressive strength, hardness and resistance to wear, as well as an ability to withstand shock and impact. Typical applications are valves, flowmeters, ball screws and linear bearings. Balls from this material are also used for ballizing, gauging and ball pens.

Material Specification

Composition

Tungsten Carbide 93 - 95 % Cobalt 5 - 7 %

Hardness

Hra 90.5 - 91.5

Mechanical Properties

Density 14.947 - 15.0% g/cm
3 o Thermal Conductivity 100 W/m/C Electrical Resistivity 20 u ohms/cm Linear Expansion Coefficient 20 - 400C
o 4.9 10/C
-6o Linear Expansion Coefficient 20 - 800C
o 5.3 10/C
-6o Transverse Rupture Strength @ 20C
o 2600 N/mm
2 Fracture Toughness K c @ 20C
o 12 MN/m
2 Compressive Strength @ 20C
o 6200 N/mm
2 Poisson's Ratio 0.22 Magnetic Properties Slightly magnetic

Size Range

1.588mm (1/16") to 50.800mm (2")

Standard Grades Available

5 10 25 100