Silicon Carbide

Silicon Carbide

It is the best material for sealing face up to now, extensively applied in mechanical seals as rotary and stationary faces. Comparing with Tungsten Carbide, silicon carbide has advantages of low density, better corrosion and thermal resistance, low friction coefficient. Also, due to its extremely high hardness property, Silicon Carbide is widely applied in Mechanical Seals as hard faces/rings.

Feature:

· Extra high hardness ·High temperature resistance

·Excellent thermal transmittance ·Better corrosion/friction resistance

·Good acid media resistance ·Economical material

SiliconCarbide

Sintered Silicon Carbide

SS iC

Reaction Bonded Silicon Carbide

RB SiC

Carbon Loaded Reaction Bonded SiliconCarbide

RB SiC+C

Remarks: better self

lubrication performance

Parameter	Unit	RBSiC	SSiC
Density	g/cm3	3.0-3.05	3.1
Free Silicon Content	%	12%	-
Crystal Size	µm	8-20	5-7
Hardness	Rockwell	HRA90	>HRA93
Compressive Strength	MPa	2700	3000
Flexural Strength	psi	391,500	435,000
	MPa	400	400
	psi	58,000	58,000
Fracture Toughness	MPam1/2	4.3	4.5
Elastic Modulus	GPa	390	410
Coefficient of	psi	57x 106	59x 106
Thermal Expansion	1x 10-6/K	4.3	4.3

Parameter	Unit	RBSiC+C
Density	g/cm3	2.7
Carbon Content	Wt. %	30
Hardness	Rockwell	HRA82
Compressive Strength	MPa	1500
Compressive Strength	psi	217,500
Flexural Strength	MPa	200
Flexural Strength	psi	29,000
Elastic Modulus	GPa	250
Elastic Modulus	psi	36.3 x 106

Ps: value above is average level.

Scan and view on your phone

YX-S-12

YX-S-2

YX-S-13

YX-S-7