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Established in 1998, China Ningbo LIHE INC. is a professional manufacturer and exporter of all kinds magnets, alpha silicon carbide and mechanical seals, dedicated to satisfying customers by providing wide range magnetic products and relative services. Through years of endeavors, the company has already become a leading manufacturer in magnets, alpha silicon carbides and mechanical seals.

  Silicon carbide alpha silicon carbide
Silicon carbide has good corrosion resistance, high hardness, excellent thermal conductivity properties and resistance to temperature flucturation. It can be used wildly in chemical industry, shipping, automobile and other fields. Lihe provide both the reachion silicone carbide and pressureless silicone carbide. All the rings which outer diameter from 8mm to 400mm is doable.


Main Performance Index of Sintered Reaction Silicon Carbide
Item
Reaction sintered SiC
Pressureless sintered SiC
Value
Value
Purity
%
>=90
>97
Density
G/cm3
3.05
3.05-3.15
Hardness
110-125(HS)
>92(HRA)
Elastic Modulus
Gpa
420
400
Poisson Ratio
0.15
0.14
Bending Strength
Mpa
350-450
400-580
Compressive Strength
Mpa
3000
3900
Thermal Conductivity
Wm/k
35-110
125.6
Coefficient of Heat Expansion
J/oC
4.3x10-6
4.02x10-6
Heat Resistance
oC
1300
1650

mechanical seal




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