low density high quality refractory mullite brick for heating furnace lining
Iow density refractory mullite bricks are made from highpurity refractory clay, with graduated additions of alumina for the high temperature products and a carefully graded organic filler which burns out during manufacture to form a uniform,controlled porous structure.
Characteristics of low density insulation refractory mullite brick:
1.Light weight and low thermal conductivity allows thinner furnace walls
2.Maintain stable structural strength throughout ambient to maximum service temperature
3.Low heat storage results in rapid cooling and heating operation
4.Low iron and impurities to enhance reducing atmosphere
5.High thermal shock resistance in preventing spalling
6.Non standard sizes and shapes are available upon request
Physical&Chemical Index of low density refractory mullite brick:
Item |
JM23 |
JM26 |
JM28 |
JM30 |
AL2O3(%) |
38-44 |
50-58 |
65-70 |
70-73 |
Fe2O3(%) |
1.0 |
0.9 |
0.8 |
0.7 |
Classification Temperature (℃) |
1350 |
1430 |
1540 |
1600 |
Bulk Density (g/cm3) |
0.8-1 |
0.8-1 |
0.8-1 |
0.8-1 |
Reheating Linear Change (%) CT-30 ℃X 8H |
1250℃ -0.5 |
1400℃ -0.5 |
1500℃ -0.5 |
1550℃ -0.5 |
Cold Crushing Strength (Mpa) |
3.0-4.5 |
3.0-4.5 |
3.0-4.5 |
3.0-4.5 |
Modulus of Rupture (Mpa) |
1.5 |
1.7 |
1.8 |
2.0 |
Thermal conductivity400℃(W/m.k) |
0.25 |
0.27 |
0.32 |
0.41 |
Thermal Expansion1000℃(%) |
0.5 |
0.7 |
0.8 |
0.9 |
Application of low density refractory mullite brick:
1) Lining of high-temperature kilns of industrial ceramics, industrial furnaces under 1650C of petrochemical, metallurgy and machinery industries
2) Lining of hot-surface of industrial furnaces as carbon furnace, cracking furnace, heating furnace for oil refining, roller kiln, tunnel kiln.
3) Back lining insulating layer of industrial furnace as glass tank kiln.
4) Atmosphere furnace.
Packaging details:
Low density refractory mullite brick is packaging with fumigated wooden pallet, using paper or non-woven fabrics between layers separated,plastic shrink film protected outside.finally using straps. Or as your requirements.
Shipping details:
Low density refractory mullite brick is transported by vessel or train from Chinese ports.
1. Strong professional:
Our company has thirty years producing experience in refractory products. Our manager will supervise on a various refractorys production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified.
2.Annual supply:
Our company has passed ISO9001 quality management system certification and SGS certification. And the annual supply of shaped and unshaped refractory product is 28, 800-35, 000 tons.
3.Export experiences:
Now we have gained a global sales network reaching Taiwan, Russia, Korea, Vietnam, Pakistan, Bulgaria, French, India, Egypt,Congo, Angola, South Africa, and so on.
4. Production equipment:
Production and testing equipments are new, complete and automated or semi- automated. Such modern facilities and equipments have provided the fine technical guarantee for the production and testing.
5. Testing equipment:
Our company's testing equipments as follows:
High Temperature RUL Tester
Bulk Density Tester
The Pressure Tester
Refractoriness Tester
Warmly welcome friends and customers all over the world to pay a visit to factory!Hopefully both of us can establish a long-term cooperation!
1.Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand,quickly respond mails and provide solutions.
2.Free sample
Sample and trial order are accepted for the quality evaluation
3.Strict quality control
Arrange production on time and control quality strictly.
4.Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5.Professional Services
Provide all the detailed news and pictures from order to delivery;offer relative export documents and original certificate if needed;warm and considerable after-sale service.
1. How you can control your quality?
For each production processing, we have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods.
2. What's your delivery time?
It usually needs about 15days- 30 days after receiving the deposit.
3.Do you have any experiences of export?
Yes,and Now we have gained a global sales network reaching Taiwan, Russia, Korea, Vietnam, Pakistan, Bulgaria, French, India, Congo, Angola, South Africa, and so on.
4. Do you provide free samples?
Yes, we can provide a free sample for testing, If we have sample in stock, The quantity based on the material type, The buyer should bear all the shipping costs.
5. Can we visit your Company?
Yes, certainly. You are very welcome to China and we will be honored to have a customer and friend.
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