Zhengzhou Rongsheng Refractory Co., Ltd.
Zhengzhou Rongsheng Refractory Co., Ltd. Refractory manufacturing company.
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High strength easy Installation low cement refractory castables for reheating furnace
Low cement castable is a kind of refractory cement castable materials, which contains 3~8% cement content and performs variety excellent properties of high strength, low porosity, high density, low abrasion, thermal shock resistance and erosion resistance. Refractory low cement castable is mainly used in metallurgy, electricity, petroleum, chemical industry and other silicate kiln. low cement insulation castable mainly includes high alumina low cement castable, corundum low cement castable and mullite low cement castable, which can be used for furnaces and boilers in different areas according to various composition.
Low cement castables are one kind of refractory castable with a high service temperature of over 1550℃, which uses aluminate cement as its binder, in which the amount of CaO is less than 2.5%. Refractory low cement castable composition mainly consists of refractory aggregate, refractory powder and water. Compared with traditional refractory castable, low cement refractory castable has a series of good performance such as low cement, low porosity, good volume stability and high cold curing-strength. And also low cement castable density is higher than other refractory castables.
Low water content.
High refractoriness,
High strength.
Low linear change rate.
High thermostability.
Low porosity and High bulk density.
High temperature strength and slag resistance.
Low cement castable is a castable refractory which is made of ultrafine powder, aluminate cement and some admixtures. Furthermore, the amount of these composite can influence its performance. As for its water amount, given the guaranteed ease of mixing material, adding little water can lower porosity and improve strength. Low cement refractory castable has the advantages of little amount of water, high density and high strength, which is the reason that this refractory material is widely used in many field and various furnaces and kilns.
| Item/Index | M | A1 | A2 | |
| Chemical component | 65 | 80 | 90 | |
| Aggregate | Mullite | Corundum | Corundum | |
| Maximum service temperature | 1600 | 1700 | 1800 | |
| Refractorinee | 1750 | 1790 | 1790 | |
| Bulk density | 2.6 | 2.8 | 3.0 | |
| Linear change after sintered | 1000℃ | -0.2 | -0.2 | -0.2 |
| 1300℃ | ±0.5 | ±0.5 | ±0.5 | |
| Pressure strength after sintered | 110*24h | 30 | 30 | 30 |
| 1000*3h | 50 | 50 | 50 | |
| 1400*3h | 70 | 80 | 80 | |
Application of Low Cement Castable
Low cement insulation castable is widely used in many industries such as metallurgical industry, petrochemical industry, power plant, construction field and other industries. And also Low cement refractory castable can be used for furnaces and boilers in different areas according to various composition. For instance, clay and high alumina low cement refractory castable can both be used on the linings of heat furnace, soaking furnace and other heat treatment furnaces.
RS refractory factory is a professional low cement insulation castable supplier that established in the early 90s of twenty century. RS refractory factory has specialized in low cement castables for more than 20 years. if you have some demand of refractory low cement castable, or have some questions on refractory low cement castable about physical and chemical indicators, please contact us for free. and Rs refractory factory as a professional low cement refractory castable manufacturer in china, has some competitive advantages as follows:
Competitive Price: Make the products competitive in your market,
Abundant Experience: Prevent cracks and twist in bricks,
Different Moulds: Save mould fees for you,
Strict Quality Control: Meet clients’ quality requirement,
Large stocks: Guarantee prompt delivery,
Professional Packing: Avoid damage and secure the goods in transportation.
