Ceramic Centering Pins

PRODUCT DETAIL

Product Description

Zirconium oxide (Zirconia) is an extremely tough ceramic with a hardness of >9 Mohs which makes it and excellent material for extreme wear, high temperature and harsh environment applications.Zirconia ceramics have remarkable properties of strength, hardness and wear resistance in addition to withstanding attack from molten metal, organic solvents, acids and alkalis.

They can also withstand high temperatures for long periods even under severe mechanical stress. Typical Applications include: volatile chemical solutions transportation, jet and diesel engine components, containers for molten metals, high speed cutting tools, high wear components, transistor insulators, dental implants, bearing balls, pump seals, and ball valves.

Physical Properties

✔ High density – up to 6.1 g/cm^3

✔ High flexural strength and hardness

✔ Excellent fracture toughness – impact resistant

✔ High maximum use temperature

✔ Wear resistant

✔ Good frictional behavior

✔ Electrical insulator

✔ Low thermal conductivity – aprox. 10% of Alumina

✔ Corrosion resistance in acids and alkalis

✔ Modulus of elasticity similar to steel

✔ Coefficient of thermal expansion similar to iron

Applications

✔ Wire forming/drawing dies

✔ Insulating rings in thermal processes

✔ Precision shafts and axles in high wear environments

✔ Furnace process tubes

✔ Wear resistance pads

✔ Thermocouple protection tubes

✔ Sandblasting nozzles

✔ Refractory material

✔ Extrusion dies

✔ Bushings and caps

✔ Kiln furniture crucible

✔ Fiber optic ferrules and sleeves

✔ Knives and blades

✔ Fuel cell parts

✔ Bearings & rollers

✔ Welding nozzles & pins

✔ Laser parts

✔ Gas igniters

✔ Electric insulator

✔ Ceramic guiders

✔ Oxygen sensors

✔ Medical and surgical component

✔ Mechanical seals

✔ Pumps, pistons, and liners

Material Properties

Compound Formula	ZrO2
Molecular Weight	123.22
Appearance	White
Melting Point	2,715° C (4,919° F)
Boiling Point	4,300° C (7,772° F)
Density	>5.68 g/cm3
Water absorption	<0>
Hardness	1350 HV
Hot expansion coefficient	9.5×10-6 /°C
Fracture toughness	8.0 MPa m½