wearable ceramics corundum ceramics alumina ball

Specifications wearable ceramics corundum ceramics alumina ball

10 years experience

Al2O3:20%-9

wearable ceramics corundum ceramics alumina ball   (1)  Product Description
Inert ceramic balls have the advantages of high strength, high stabilities to chemical and thermal circumstances. It can be resistant to acid, alkali, salt and all organic solvents. Being used as a support and a covering material in reactors in oil refinery, chemical, fertilizer, natural gas and environmental protection industries, it can improve the distribution of gas & liquid and protect the catalyst from shocking by the rushing fluids.     (2)  Technical Specification   

Type			Feldspar	Feldspar-Mullite	Mullite	Mullite-Corundum	Corundum
Item
Chemical composition%	Al2O3		20-30	30-45	45-70	70-90	≥90
	Al2O3+SiO2		≥90
	Fe2O3		≤1
Water absorption, %			≤5
Acid resistance , %			≥98
Alkali resistance,%			≥80	≥82	≥85	≥90	≥95
Thermal resistance			≥1300	≥1400	≥1500	≥1600	≥1700
Crushing strength N/grain		Φ 3	≥120	≥140	≥150	≥160	≥200
		Φ 6	≥400	≥420	≥440	≥480	≥500
		Φ 8	≥480	≥520	≥600	≥620	≥650
		Φ10	≥600	≥700	≥800	≥900	≥1000
		Φ13	≥1000	≥1100	≥1300	≥1500	≥1800
		Φ16	≥1500	≥1600	≥1800	≥2300	≥2600
		Φ20	≥1800	≥2000	≥2300	≥2800	≥3200
		Φ25	≥2500	≥2800	≥3200	≥3600	≥4000
		Φ30	≥3000	≥3200	≥3500	≥4000	≥4500
		Φ38	≥4000	≥4500	≥5000	≥5500	≥6000
		Φ50	≥6000	≥6500	≥7000	≥8500	≥10000
		Φ75	≥10000	≥11000	≥12000	≥14000	≥15000
Bulk density, kg/m3			1300-1400	1400-1500	1500-1600	1600-1800	≥1800
Note: The data of bulk density is given for reference only, not as the acceptance criterion.

(3) Size

Diameter, Φ	3	6	8	10	13	16	20	25	30	38	50	75
Tolerance,mm	±1.0				±1.5				±2.0			±3.0

  (4) Product Standard
Chemical Industry Standard HG/T3683.1-2000 Industrial Ceramic Ball – Inert Ceramics ball