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Typically, Ceramic Pin locating pins are used for controlled, fine tolerance positioning of a work piece. For example, a pallet that is moved along one axis, where the drive mechanism is not accurate and stable enough to place it in a position sufficiently accurate to execute a particular process, the use of locating pins may be the best solution. Usually two locating pins are enough to properly locate the work piece on one plane.

Features Ceramic Pin:

1. High temperature resistance: 99.7% Al2O3 pins can stand 1800C at most. 95% Al2O3 rods can stand 1500C at most.

2. Good abrasive resistance: 99.7% Al2O3 rods, 3.9g/cm3, 95% Al2O3 rods 3.6g/cm3.

3. Good insulating property.

4. Tight tolerance: we can grind and polish the outer surface and length. Size tolerance can be +/-0.02mm after machining.Surface roughness can reach to Ra0.2um.

5. Fast delivery, we have large quantity alumina ceramic rods and blanks in stock.

6. Inspection, each single rods will be tested before shipping.

7. Low shipping cost, we have long time cooperation with shipping company, which can provide us very low prices.

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Properties Sheet of zirconia and alumina : 

 

Properties	Units	95 Alumina	99 Alumina	ZrO2
Density	g / cm³	3.65	3.92	5.95-6.0g/cm³
Water absorption	%	0	0	0
Coefficient of thermal expansion	10-6/K	7.9	8.5	10.5
Modulus of Elasticity Young's Mod	GPa	280	340	210
Poisson's ratio	/	0.21	0.22	0.3
HV Hardness HV	MPa	1400	1650	1300-1365
Flexural Strength @ room temperature	MPa	280	310	950
Flexural Strength @700°C	MPa	220	230	210
Compressive Strength @ room temperature	MPa	2000	2200	2000
Fracture Toughness	MPa *m 1/2	3.8	4.2	10
Heat conductivity @ room temperature	W/ m*k	18-25	26-30	2-2.2
Electrical Resistivity @ room temperature	Ω*mm2 /m	>1015	>1016	>1015
Max use temperature	°C	1500	1750	1050
Resistance to acid alkaline	/	high	high	high
Dielectric Constant	/	9.5	9.8	26
Dielectric Strength	KV/mm	16	22	/
Thermol Shock Resistance	△ T ( °C )	220	180-200	280-350
Tensile Strength @ 25 °C	MPa	200	248	252