Wear-Resistant Alumina Ceramic Rings

High-purity Ceramic Rings Designed To Resist Abrasion, Corrosion, And Impact.

Wear-resistant alumina ceramic rings offer excellent hardness and corrosion resistance, making them ideal for lining and sealing in abrasive environments.

Alumina Ceramic Ring Wear Resistant Ring Ceramic Lining Ring Abrasion Resistant Ceramic +1 More

Wear-Resistant Alumina Ceramic Rings

High-purity Ceramic Rings Designed To Resist Abrasion, Corrosion, And Impact.

Wear-resistant alumina ceramic rings offer excellent hardness and corrosion resistance, making them ideal for lining and sealing in abrasive environments.

Alumina Ceramic Ring Wear Resistant Ring Ceramic Lining Ring Abrasion Resistant Ceramic +1 More

Wear-resistant alumina ceramic rings are precision-engineered components made from high-purity aluminum oxide (Al₂O₃). These ceramic rings are known for their outstanding hardness (Mohs > 9), low wear rate, and excellent chemical stability, making them ideal for use in the most abrasive and corrosive environments.

These rings are widely used as liners, spacers, bushings, or sealing elements in high-wear industrial applications such as mining, power generation, cement, and chemical processing. They are especially effective in systems involving high-velocity particulate flow, such as pneumatic conveying or slurry pipelines.

With strong resistance to acid, alkali, and thermal shock, alumina ceramic rings can maintain their performance in temperatures up to 1,500°C. Their dimensional precision and mechanical strength also allow them to be installed in tight tolerance assemblies, helping to extend the service life of equipment and reduce unplanned maintenance.

Available in various sizes, thicknesses, and hole patterns, Sunny Steel offers customizable alumina ceramic ring solutions to match specific operational requirements.

Ceramic Performance Parameters
Properties 性能	Units 单位	Cordierite 堇青石	Mullite 莫来石	95% Alumina 氧化铝	99% Alumina 氧化铝	99.5% Alumina 氧化铝	99.7% Alumina 氧化铝	Silicon Nitride 氮化硅	Zirconia 氧化锆
Color 颜色	-	Yellow	White	White	Light Yellow	Light Yellow	Light Yellow	Black	White
Density 密度	g/cm³	1.9	2.6	2.6	3.6	3.8	3.9	3.2	6.0
Flexural Strength 抗弯强度	MPa	30	120	200	250	350	375	800	1100
Compressive Strength 抗压强度	MPa	350	500	2500	2800	2800	2554	2600	3000
Elastic Modulus (20°C) 弹性模量	GPa	40	100	300	350	360	357	290	320
Max Operating Temp. 最高使用温度	°C	1200	1300	1400	1500	1500	1760	1300	1050
Thermal Conductivity 热导率	W/m·K	1.3–1.8	2–6	20	30	30	33–38	25	3
Thermal Expansion 热膨胀系数	10⁻⁶/°C	2.5–3.0	2.5–3.0	5	8	8.2	8.2	3	10
Thermal Shock Resistance 抗热震性	ΔT °C	300	150	140	150	200	223	600	250
Dielectric Strength 击穿强度	kV/mm	-	-	15	18	18	23.4	25	15
Dielectric Constant 介电常数	εr	8	8	9	9.2	9.2	9.84	9	26