- Auto Ignition System[2]
- Funnel[10]
- Other Lab Supplies[10]
- Connectors[10]
- Electrical Plugs & Sockets[10]
- Electrical Ceramics[10]
- Insulation Materials & Elements[10]
- Dental Equipments[10]
- Industrial Furnace[1]
- Industrial Heater[10]
- Bearing Balls[3]
- Ceramic Ball Bearing[2]
- Ceramics[10]
- Refractory[5]
- Contact Person : Mr. hu guoping
- Company Name : Shanghai Gongtao Ceramics Co., Ltd.
- Tel : 86-21-53082298
- Fax : 86-21-53082308
- Address : Shanghai,shanghai,Room A135 , No. 668,Beijing East Road
- Country/Region : China
- Zip : 200001
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Gongtao company mainly produce alumina tubes, rods and various industrial ceramic parts, which are mainly used in thermalcouple temperature, liquid steel continous temperature, various industrial furnace(containig vacuum furnace, carburizing furnace, wire furnace, atmosphere furnace etc), especially widely used in petrochemical, spinning, electric, instrumentation, mechanical workout, military project etc industry.
Our items are various and exported to many countries.Welcome to contact us!
Single bore ceramic beads:
ID | 0.2 | 0.3 | 1 | 1 | 1 | 1.5 | 1.5 | 1.5 | 2 | 2 | 2 |
OD | 0.6 | 1.5 | 2 | 2 | 2.2 | 3 | 3 | 3 | 4 | 4 | 4 |
Length | 4 | 2.5 | 10 | 10 | 3.5 | 4 | 10 | 30 | 4 | 6 | 10 |
Double rond bore ceramic beads
ID | 2 | 3 | 4 | 6 | 7 | 9 | 1.2 | 1.2 | 1.5 | 2 | 2 |
OD | 5 | 7 | 9 | 11 | 13 | 15 | 5 | 5 | 7 | 8 | 9 |
Length | 5 | 7 | 9 | 11 | 13 | 15 | 10 | 35 | 10 | 25 | 50 |
Oval double bore ceramic beads
Dia of bore | 2.5 | 3.5 | 3.5 | 4 | 4 |
Long dia. | 9 | 10 | 10 | 13 | 13 |
Oval dia. | 7 | 8 | 8 | 10 | 10 |
Length | 25 | 20 | 20 | 25 | 25 |
Property of material:
Material | 85 Al2o3 | 90 Al2o3 | 95 Al2o3 | 99 Al2o3 |
Al2o3 | 85% | 90% | 93% | 99.30% |
Fe2o3 | ≤ 1.0 | ≤ 0.5 | ≤ 0.5 | ≤ 0.3 |
Desnsity: g / cm3 | 3.4 | 3.5 | 3.6 | 3.85 |
Vickers Hardness | ≥ 8.6 | ≥ 8.8 | 9 | 9 |
Water Absorption:% | ≤ 0.2 | ≤ 0.1 | ≤ 0.085 | ≤ 0.01 |
Refractoriness:°C | 1580 °C | 1600 °C | 1650 °C | 1800°C |
Flexural Strength:Mpa | 180 | 200 | 240 | 280 |
Wear Rate( at room temperature, erosion, 100 grinding)% | ≤ 3 | ≤ 2.5 | ≤ 1 | ≤ 0.5 |
Other information:
Feature | Application | Main usage |
1.Great mechanical strength | Electric appliance industry Automotive industry | 1.Heat treatment furnace and toughened furnace |
2.High softening temperature | ||
3.Good resistance to thermal impact | ||
4.Small thermal expansion coefficient | Mechanical industry Engineer industry | 2.Inner liner tube and heating tube in electric furnace |
5.Good chill and abrupt heat properties | ||
6. Resistance to acid and alkali corrosion |
99% Alumina Multi Bores Tubes (Pipes)