Henan Ronghua Refractory Technology Co. , Ltd
Product Overview
High alumina brick is kind of alumina silicate refractory material, made of superior bauxite and other additives at high temperature, with Al2O3 content above 48%. Fire clay brick al2o3 content is below 48%, but with good thermal shock resistance. Province Henan Xinmi city is one of the biggest high alumina brick production base.
RONGHUA REFRACTORY has successfully provided bulk refractory bricks and professional refractory material solutions to various industrial furnaces for oversea markets. Referring to cement industry, lime kiln, glass kiln etc.
Low-creep high alumina brick is with superior bauxites with special additives, after High pressure molding, high temperature firing, with small creep rate and become the Low creep high alumina refractory brick. It is suitable for medium and small blast furnace supporting hot stove.
Characters
Higher refractoriness under loading
Good thermal shock resistance
Good chemical erosion resistance
Application
High alumina brick is widely used in blast furnace, EAF, steel ladle, boiler, lime/cement kiln, glass kiln etc.
Different furnaces refractory linings should be matched with suitable fire bricks, with suitable specifications and related shapes.
Standard shapes including: straight shape, side wedge, tip wedge etc. see below brick shapes list, customized drawings are acceptable.
Specification
High Alumina Refractory Brick | SK-40 | SK-38 | SK-37 | SK-36 | SK-35 | |
Al203≥,% | 80 | 75 | 65 | 55 | 48 | |
Bulk density,g/cm³ | 2.7-2.8 | 2.4-2.65 | 2.3-2.35 | 2.25-2.3 | 2.1-2.2 | |
Apparent Porosity,% | 20-22 | 20-22 | 23-24 | 23-24 | 23-26 | |
Cold crushing strength,Mpa | 65 | 55 | 50 | 45 | 40 | |
Refractoriness,℃ | 1790 | 1790 | 1790 | 1770 | 1750 | |
Refractoriness under loading,0.2MPa | 1600 | 1520 | 1480 | 1450 | 1420 | |
Permanent liner change of Reheating,% | 1500℃,2h | -0.4~0.1 | ||||
Item | Siza,mm | Shape |
T3 | 230×114×65 | Cuboid |
T6 | 250×123×65 | Cuboid |
T14 | 171×113×65 | Cuboid |
T19 | 230×114×65/55 | Trapezoid |
T20 | 230×114×65/45 | Trapezoid |
T29 | 230×171×65/55 | Trapezoid |
T30 | 230×171×65/45 | Trapezoid |
T38 | 230×114×65/55 | Side Arch |
T39 | 230×114×65/45 | Side Arch |
Thin brick 20 | 230×114×20 | Cuboid |
Thin brick 30 | 230×114×30 | Cuboid |
Thin brick 40 | 230×114×40 | Cuboid |
Large size | 230×57×65 | Cuboid |
Large size | 520×230×113 | Cuboid |
Large size | 650×230×113 | Cuboid |
Large size | 780×230×113 | Cuboid |
Large size | 452×230×65 | Cuboid |
G1 | 230×150×75 | Cuboid |
G2 | 345×150×75 | Cuboid |
G5 | 230×150/120×75 | Side Arch |
G6 | 230×150/110×75 | Side Arch |
