Low Price refractory fire bricks for casting steel
KRS Lightweight insulating brick description:
1.Made by high pure mullite as raw material,and adding alumina powder according to different type and then sintering in high temperature.
2.Al2O3 content is 50-85%.
3.Bulk density is 0.6-1.75g/cm3, crushing strength is 1.5-6.0MPa, thermal conductivity is 0.221-0.72W/(m.K) (1350°C)
4.Working temperature:less than 1600°C,Max working temperature:1700°C.
Lightweight insulating brick properties & advantages :
1.Low levels of iron and other impurities;
2.High mechanical intensity;
3.High refractoriness, can contact with the flame directly, suitable for various atmosphere;
4.High porosity, low volume density, low thermal conductivity;
5.Good heat insulating performance and energy-efficient;
6.Low creep rare at high temperature,good thermal shock stability;
7.Chemical corrosion resistance;
8.Long service life.
Application of Lightweight insulating brick:
Mullite insulation bricks can be in direct contact with the flame.
Mullite insulation bricks can be used as linings or as thermal preservation layers in various industrial furnaces and kilns in metallurgical industry, ceramic industry, chemical industry, machinery industry, such as blast furnace, hot blast stoves ,electric arc furnace, cement kiln,melting furnace, ignition furnace, flue, refining equipment, heating equipment and piping, regeneration device, gas furnace, soaking furnace, annealing furnace, heat reaction chamber and other thermal industrial equipment.
| Lightweight insulating brick index | ||||||
| Item: | JM-23 | JM-26 | JM-28 | JM-30 | JM-32 | |
| Classification temperature oC | 1260 | 1430 | 1540 | 1650 | 1760 | |
| Bulk density g/cm3 | 0.6 | 0.8 | 0.9 | 1 | 1.25 | |
| Modulus of rupture MPa | 0.9 | 1.5 | 1.6 | 1.7 | 2 | |
| Cold crushing strength MPa | 1.2 | 2.4 | 2.6 | 2.8 | 3.4 | |
| Permanent linear change %, | -0.1 | -0.5 | -0.8 | -0.9 | -0.9 | |
| 1230oC×24 | 1400oC×24 | 1510oC×24 | 1620oC×24 | 1730oC×24 | ||
| Thermal expansion coefficient | 0.45 | 0.5 | 0.55 | 0.6 | ||
| Thermal conductivity W/m.k | 400.C | 0.17 | 0.24 | 0.3 | 0.4 | 0.49 |
| 600.C | 0.19 | 0.27 | 0.32 | 0.42 | 0.5 | |
| 800.C | 0.22 | 0.3 | 0.35 | 0.44 | 0.51 | |
| 1000.C | 0.25 | 0.32 | 0.38 | 0.45 | 0.53 | |
| 1200.C | - | 0.35 | 0.39 | 0.47 | 0.55 | |
| Al2o3 % | 38 | 50 | 64 | 72 | 76 | |
| Fe2o3 % | 0.9 | 0.8 | 0.7 | 0.5 | 0.4 | |
| Size | 230*114*65/75MM | |||||
About Us
"KRS new material Co., Ltd is engaged in refractory and insulation material for about 20 years and had a good reputation among customers all over the world.
The main products of the company are high temperature resistant calcium silicate heat insulation products, ceramic fiber products,perlite product and other thermal insulation refractory materials. Products are widely used in the construction of urban heat network and the heat insulation of various kinds of kiln and pipeline in metallurgy, petroleum, chemical, cement, electronics, machinery, ceramics, glass, natural gas and other industries."
Q: How can I get the price?
A: We usually quote within 24 hours after we get your inquiry(Except weekend and holidays). If you are very urgent to get the price, please email us or contact us in other ways so that we can offer you a quote.
Q: Can I buy samples placing orders?
A: Yes.Please feel free to contact us.
Q: What is your lead time?
A: It depends on the order quantity and the season you place the order.Usually we can ship within 7-15 days for small quantity,and about 30 days for large quantity.
Q: What is your payment term?
A: T/T,Western Union,L/C,and Paypal.This is negotiable.
Q: What is the shipping method?
A: It could be shipped by sea,by air or by express(EMS,UPS,DHL,TNT,FEDEX and ect).Please confirm with us before placing orders.
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