SiC Ceramic Parts

Silicon carbide (SiC) ceramics feature exceptional hardness, superior wear resistance, and excellent thermal conductivity. It maintains high strength and stability under extreme high temperatures and corrosive environments, with outstanding mechanical performance.
Widely applied in mechanical seals, pump components, semiconductor equipment and industrial wear parts. Custom machining and precision fabrication are available per your specifications.

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Parameters
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Sic oxide-bonded

Category	Item	Unit	Value
Chemical Composition	SiC ≥	%	90
Physics Property	Max. Service Temp.	℃	1500
	Refractoriness ≥	SK	39
	Refractoriness under load (2kg/cm², T2) ≥	℃	1750
	Modulus of Rupture at room temp ≥	kg/cm²	500
	Modulus of Rupture at 1400℃ ≥	kg/cm²	100
	Compressive strength ≥	kg/cm²	1300
	Thermal Expansion at 1000℃	%	0.42-0.48
	Apparent Porosity	%	7-8
	Bulk Density	g/cm³	2.70-2.75
	Thermal Conductivity at 1000℃	kcal/m·hr·℃	13.5-14.5
The above functions and features can be designed according to the actual requirements of customers

Silicon Carbide (RBSiC)

SiC Technical Data:

Properties	Reaction Bonded SiC (SiSiC)	Recrystallized SiC (R-SiC)	Nitride Bonded SiC (NSIC)
SiC content (%)	90~92	>99	≥75
Si content (%)	8~10	0	0
Si₃N₄ content (%)	0	0	≥23
Density (g/cm³)	>3.02	2.65–2.75	2.65–2.85
Porosity (%)	<0.1	15–18	13–15
Bending strength at 20℃ (MPa)	260	80–100	160–180
Bending strength at 1200℃ (MPa)	280	90–110	170–180
Compressive strength at 20℃ (MPa)	900	≥300	580
Hardness (kg/mm²)	2400	1800–2000	2000–3000
Thermal conductivity at 1200℃ (W·m^-1·K^-1)	45	36	19.6
Thermal expansion coefficient at 1200℃ (α×10^-6/℃)	4.5	4.6	4.7
Modulus of elasticity at 20℃ (GPa)	330	280	170–190
Maximum operation temperature (℃)	1380	1650	1450

Nitride Bonded SiC

SiC Technical Data:

Properties	Reaction Bonded SiC (SiSiC)	Recrystallized SiC (R-SiC)	Nitride Bonded SiC (NSIC)
SiC content (%)	90~92	>99	≥75
Si content (%)	8~10	0	0
Si₃N₄ content (%)	0	0	≥23
Density (g/cm³)	>3.02	2.65–2.75	2.65–2.85
Porosity (%)	<0.1	15–18	13–15
Bending strength at 20℃ (MPa)	260	80–100	160–180
Bending strength at 1200℃ (MPa)	280	90–110	170–180
Compressive strength at 20℃ (MPa)	900	≥300	580
Hardness (kg/mm²)	2400	1800–2000	2000–3000
Thermal conductivity at 1200℃ (W·m^-1·K^-1)	45	36	19.6
Thermal expansion coefficient at 1200℃ (α×10^-6/℃)	4.5	4.6	4.7
Modulus of elasticity at 20℃ (GPa)	330	280	170–190
Maximum operation temperature (℃)	1380	1650	1450

Recrystallized R-SiC

SiC Technical Data:

Properties	Reaction Bonded SiC (SiSiC)	Recrystallized SiC (R-SiC)	Nitride Bonded SiC (NSIC)
SiC content (%)	90~92	>99	≥75
Si content (%)	8~10	0	0
Si₃N₄ content (%)	0	0	≥23
Density (g/cm³)	>3.02	2.65–2.75	2.65–2.85
Porosity (%)	<0.1	15–18	13–15
Bending strength at 20℃ (MPa)	260	80–100	160–180
Bending strength at 1200℃ (MPa)	280	90–110	170–180
Compressive strength at 20℃ (MPa)	900	≥300	580
Hardness (kg/mm²)	2400	1800–2000	2000–3000
Thermal conductivity at 1200℃ (W·m^-1·K^-1)	45	36	19.6
Thermal expansion coefficient at 1200℃ (α×10^-6/℃)	4.5	4.6	4.7
Modulus of elasticity at 20℃ (GPa)	330	280	170–190
Maximum operation temperature (℃)	1380	1650	1450

Production & Delivery
Production Capacity: Flexible production capacity for both standard and customized Advanced Ceramic components
Typical Lead Time: Sampling 7–12 days | Mass production 15–45 days, depending on product specifications and order volume
Shipping: FOB / EXW / CIF options available via sea, air, or express
Packaging: Export-standard protective packaging designed for safe international transportation

From technical drawings and samples to customized specifications, our engineering and production teams support customers throughout the process — from prototype development to stable mass production.