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what we do
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products
| Tungsten Carbide |
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| Tungsten carbide is widely used as seal faces with resistant-wearing,high fractural strength,high thermalconductivity, small heat expansion co-efficient.It is the best material to resist heat and fracture in all hard face materials. |
TC physical property |
Technical Parameter |
Unit |
YWN6 |
YWN8 |
YG6 |
YG8 |
DYNT60 |
|
Composition |
WC |
% |
94 |
92 |
94 |
92 |
|
Ni |
% |
6 |
8 |
|
|
|
Co |
% |
|
|
6 |
8 |
|
Density |
g/cm3 |
14.5~14.9 |
14.4~14.8 |
14.6~15 |
14.5~14.9 |
6.5~6.8 |
Hardness |
HRA |
88.5 |
88 |
89.5 |
89 |
90 |
Fractural Strength |
MPa |
1490 |
1470 |
1421 |
1470 |
1480 |
Heat Expansion Co-efficient |
10-6/K |
5.2 |
5.3 |
5 |
5.1 |
7.5 |
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| Silicon Carbide |
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| They have the property of excellent resistant-corrosion,high mechanical strength,high thermal conductivity,good self-lubrication,used as seal faces,bearings and tubes in spacecraft,machinery,metallurgy,printing and dyeing,foodstuff,phamaceutical,auto industry and so on.When the sic faces are combined with graphite faces the friction is the smallest and they can be made into mechanical seals which are able to work in highest working requirements. |
SiC physical property |
Technical Parameter |
Unit |
SiC |
SSiC |
Hardness |
HS |
110 |
115 |
Porosity Rate |
% |
<0.3 |
<0.2 |
Density |
g/cm3 |
3.00~3.05 |
>3.10 |
Compressive Strength |
MPa |
>2200 |
>2500 |
Fractural Strength |
MPa |
>350 |
>380 |
Coefficient of Heat Expansion |
10-6/oC |
4 |
4.2 |
Content of Sic |
% |
≥90 |
≥98 |
Free Si |
% |
≤10 |
≤1 |
Elastic Modulus |
GPa |
≥400 |
≥410 |
Temperature |
oC |
1300 |
1400 |
|
|
| Carbon |
 |
| Graphite has the good property of good resistant-corrosion,high thermal conductivity and lower friction,good self-lubrication,the smaller expansion.They can be made into the seal faces,bearings and so on.It is ideal to choose it as the frictional mating rings. |
Graphite chemical property |
|
Category |
Model |
Density
(g/cm3) |
Fractural Strength
(MPa) |
Compressive Strength(MPa) |
Shaw Hardness
(HS) |
Porosity
(%) |
Temperatures
(oC) |
|
Carbon-graphite
|
Impregnated Epoxy Resin(H) |
M106H |
1.75 |
65 |
200 |
85 |
<1 |
250 |
M120H |
1.7 |
60 |
180 |
80 |
<1 |
250 |
Impregnated Furan Resin(K)
|
M106K |
1.75 |
67 |
200 |
90 |
<1 |
250 |
M120H |
1.7 |
62 |
180 |
85 |
<1 |
250 |
|
Impregnated Phenol Aldehyde Resin(F) |
M106F |
1.75 |
60 |
200 |
85 |
<1 |
250 |
M120F |
1.7 |
55 |
180 |
80 |
<1 |
250 |
Antimony Carbon(D) |
M106D |
2.3 |
65 |
220 |
90 |
<1.5 |
400 |
| M120D |
2.3 |
60 |
220 |
90 |
<1.5 |
400 |
| M254D |
2.3 |
55 |
210 |
65 |
<1.5 |
450 |
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| Ceramic |
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| Ceramic seal faces have the property of the resistant-high-temperature,resistant-corrosion,resistant-wearing and good sealing and are widely used in spacecraft,machinery,metallurgy,printing and dyeing, foodstuff,pharmaceutical, auto industry and so on. |
AI2O3 Ceramic physical property |
Technical Parameter |
Unit |
95% |
99% |
99.5% |
Content of Al2O3 |
% |
95 |
99 |
99.5 |
Density |
g/cm3 |
3.7 |
3.88 |
3.9 |
Hardness |
HRA |
85 |
88 |
90 |
Porosity Rate |
% |
<0.4 |
<0.2 |
<0.15 |
Fractural Strength |
Mpa |
250 |
310 |
350 |
Coefficient of Heat Expansion |
10-6/K |
5.5 |
5.3 |
5.2 |
Thermal Conductivity |
W/M.K |
27.8 |
26.7 |
26 |
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| Rubber |
 |
NBR |
Restistan to oil,pressure and wear,good elasticity and mechanical strength;applicable to the mediums including water,oil,alcohol,etc from -20oC to 100oC |
EPDM |
Resistant to high or low temperatures, ozone and chemicals;applicable to weak acids with temperatures from -35oC to 150oC |
Viton |
Resistant to heat,oil,medicine and chemical reagents,acid and alkali with medium corrosive degrees;applicable to the corrosive mediums from -20oC to 180oC |
Silica Gel |
Resistant to ozone,aging,acetic acid,ammonia and alcohol;applicable to alcohol, alkali, etc from -50oC to 210oC |
Chlorinated Rubber |
Resistant to Freon,petroleum;applicable to inorganic acid,alkali,running from -30oC to 130oC |
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| Stainless |
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