Mullite Castables
Introduction
Mullite castable as high alumina refractory castables is made of high quality porous mullite aggregate. The general formulation is 3Al2O3∙2SiO2. It has high compressive strength, good high temperature endurable stability and thermal shock resistance, excellent wear resistance and erosion resistance etc., and can be used for the lining of large power station boiler wear lining and other high temperature kiln.
Mullite refractory castable is mixed with fine mullite powder and other additives. The material ratio can be adjusted according to the actual use of the boiler to carry out customized production. The mullite aggregate has a critical particle size of 12 mm and a long term use temperature of 1350℃. The mullite refractory castable has high use temperature and can be directly contacted with flame for working lining to achieve high temperature and energy saving, the unit weight is light, the structure weight is reduced by 40-60%, the hidden trouble of the brick hanging brick is eliminated, the porous mullite bone Ingredients, low thermal conductivity, good thermal insulation performance, fast oven drying, shortening furnace life, significant economic benefits.
Properties
l Low thermal conductivity
l High temperature resistance
l Good insulation properties
l Short construction period
l Long service life
Physical & Chemical Index
Mullite Castables | |||||
Item/ Model | XHJMC85 | XHJMC-75 | XHJMC-65 | XHJMC-60 | |
Working temperature/ºC | 1630 | 1550 | 1500 | 1450 | |
Component (%) | Al2O3 + SiO | 85 | 75 | 65 | 60 |
CaO | 2.0 | 2.0 | 2.0 | 1.5 | |
Rupture strength Mpa | 110ºC*24h | ≥12 | ≥9 | ≥8 | ≥8 |
1350ºC*24h | ≥13 | ≥10 | ≥9 | ≥1 | |
Cold crushing strength Mpa | 110ºC*24h | 90 | 90 | 80 | 70 |
1350ºC*24h | 100 | 95 | 90 | 80 | |
Linear rate of change% | 1350ºC*24h | ±0.5 | ±0.5 | ±0.5 | ±0.4 |
Bulk density (g/cm3) | 2.65 | 2.55 | 2.50 | 2.45 | |
Grain size | 1-12mm | ||||
Characteristics
1) High strength castable.
2) Cement kiln refractory castable series
3) Self-flowing castable.
4) Steel fiber strengthened refractory castable.
5) High strength low cement refractory castable.
6) Refractory guniting castable
7) Al2O3-SIC-C Slag resistant refractory castable.
8) High strength and wear-proof alkaline resistant castable
9) Mullite castable, corrundum castable.
10) Light weight insulating castable.
11) Refractory ramming material.
12) Refractory moldable.
13) Refractory ramming material
Application:
Mullite castable is mainly used as the lining of boiler, blast furnace, hot blast furnace, heating furnace, ceramic furnace and so on
Product Packing and Delivery:
1. Ton bag: 1000kg jumbo bag
2. Standard bag: 25kg/20kg PP bag
3. According to your requirements
Shipping : 20GP FCL :21Tons / 27Tons