Quick Details Place of Origin:  Henan, China (Mainland)  Shape:  Powder  Material:  CaO,SiO2,MgO  SiO2 Content (%):  min 79  CaO Content (%):  min 17  MgO%:  min 79  Refractoriness (Degree):  1770°< Refractoriness< 2000°  Brand Name:  Topchase  Bulk density/ g/cm3:  min 2.3-2.59  LCR %:  ±0.1~±0.13  MOR /Mpa:  min 3.9  Initial sintering temp ℃:  1000  Max . service temp ℃:  1700  Payment:  LC,TT,DP,West Union  Application:  Used for tundish lining  Brad name: TopchasePackaging & DeliveryPackaging Details: 25kg/bag, wooden pallets with plastic film Delivery Detail: 10-30 days according to the order quantityProduct detailsThe advanced Tundish refractories dry vibration mix composed of electro fused magnesite and dead burnt magnesite were tested successfully in several steel-making factories. what the Liner Dry vibration Mix impresses most is its long service life and easy to bake, which is impossible be paralleled by other coating material.Features  1.Its service life is up to 55 hours.  2.Greatly improve the tundish using life.  3. Easy to operate and bake.  4.Reduce the consumption of labor power.  5.Can be applied in any climatic condition.SpecificationItem2G-12G-2Chemical composition  (MgO) %≥ 85≥ 90Grain size  (mm)55Bulk density  (g/cm 3)≥ 2.3≥ 2.5Compressive strength  Mpa (1500 ℃x3h)≥ 1.5≥1.7Linear changing rate  (%)-0.09-0.01Suggested working modecontinuouslycontinuouslyApplicationAlkaline material smelting, such as carbon steel, high manganese steel, etc. Especially for manganese alloy series smelting.PackingTundish Lining Development History:  1) Before 1995, lining is Siliceous heat-insulating board,and average service life is from 6hr to10 hr. It has poor erosion resistance and pollution on ladle.  2) After 1995, people replaced the siliceous board with Magnesia calcium or magnesium coating as the tundish liner. The service life improved, up to about 24 hrs which could purify the ladle. However, it heavily increased the demand for mechanical spraying or manual labor daubing.3)Since 2000, with the rapid development of Tundish rapid replacement technology, the tundish service life has been greatly improved,which will also have more higher requirement on the liner.