Alumina Ceramic Lined Components

Alumina ceramic lined components are critical in protecting pipeline systems and industrial equipment from severe wear and abrasion. These components include elbows, tees, bends, reducers, and other fittings, all lined internally with high-purity alumina ceramic tiles or sleeves.

The alumina ceramic lining offers excellent hardness, chemical inertness, and thermal stability, making these components ideal for harsh conditions such as slurry transport, ash handling, and abrasive powder conveying. By combining a robust steel exterior with a ceramic interior lining, these components deliver enhanced durability and reduce downtime caused by wear-related failures.

Widely applied in power plants, mining, cement, and chemical industries, alumina ceramic lined components ensure smooth operation, longer service intervals, and cost savings through minimized maintenance.

Technical Datasheet of Advanced Alumina Ceramics
Material	Unit	95% Al₂O₃	96% Al₂O₃	99% Al₂O₃	99.5% Al₂O₃	99.8% Al₂O₃
Purity	%	95	96	99	99.5	99.8
Color	---	White/Pink	White	Ivory	Ivory	Ivory
Density	g/cm³	3.65	3.72	3.85	3.90	3.92
Water Absorption	%	0	0	0	0	0
Moh's Hardness	---	9	9	9	9	9
HV Hardness	---	>1300	>1300	1700	1750	1800
Flexural Strength @25°C	MPa	300	300	330	375	390
Fracture Toughness	MPa·m^1/2	3~4	3~4	3~4	4	4
Compressive Strength (25°C)	MPa	2200	2200	2350	2450	2500
Thermal Conductivity @25°C	W/m·K	18–22	≥24	27	29	32
Thermal Expansion Coefficient (25–1000°C)	10^-6/°C	8	8	8	8	8
Thermal Shock Resistance	ΔT (°C)	220	220	180–200	180–200	180–200
Max. Working Temperature	°C	1500	1500	1700	1750	1750
Dielectric Strength	kV/mm	16	17.2	20	22	22
Electrical Resistivity @25°C	Ω·cm	10¹⁴	10¹⁴	10¹⁴	10¹⁴	10¹⁴
Dielectric Constant @1MHz	---	9	9	9.7	9.7	9.8
Dielectric Loss (Tan δ) @1MHz	---	0.0004	0.0002	0.0002	0.0001	0.0001

Compare physical, thermal, and electrical properties across various purity levels of alumina ceramic (Al₂O₃).

Specification of Ceramic Tubes
Parameter	Details
Material Options	Alumina (40%–99.8%), Zirconia, Silicon Carbide, Silicon Nitride
Forming Methods	Extrusion, Dry Pressed, Hot Pressed, CIM, ISO Pressed
Dimensional Capability	Min. ID: 1mm; Max. OD: 800mm
Dimensional Tolerance	OD ±0.005mm, ID ±0.01mm, Length ±0.001mm
Surface Treatment	Polished, Glazed, or Metalized
Secondary Processing	CNC machining, lapping, threading, drilling, grinding, laser cutting