product introduction:
Steel fiber reinforced castables are made of super grade bauxite clinker as aggregate, high quality bauxite clinker and corundum fine powder as matrix, various composite materials such as ultrafine powder as binder and additive, and stainless steel heat-resistant fiber. At the same time, due to the addition of steel fiber, the overall strength of the furnace wall is greatly enhanced after casting. it is mostly used in the parts where the temperature step change is more likely to cause damage to the furnace wall.
Product application:
Steel fiber castables are widely used in the steel, metallurgy, chemical and building materials industries, especially in CFB boilers, often used in furnace outlets and side walls, tops, cyclone separator straight sections, cyclone separator tops, return feeders and other locations.
Welcome to contact us for our steel fiber reinforced castables and any information you want to know.
Performance Characters:
|
Item/Grade |
MRGJ-80 |
MRGJ-70 |
MRGJ-65 |
|
Al2O3； % |
≥80 |
≥70 |
≥65 |
|
Bulk density； g/cm3 |
≥2.8 |
≥2.6 |
≥2.4 |
|
Cold crushing strength； Mpa； |
110℃×24h；≥80 1300℃×3h；≥100 |
110℃×24h；≥70 1200℃×3h；≥90 |
110℃×24h；≥60 1100℃×3h；≥80 |
|
Modulus of rupture； Mpa； |
110℃×24h；≥12 1300℃×3h；≥14 |
110℃×24h；≥10 1200℃×3h；≥12 |
110℃×24h；≥8 1100℃×3h；≥10 |
|
Permanent Linear Change On Reheating； % |
1300℃×3h ±0.5 |
1200℃×3h ±0.5 |
1100℃×3h ±0.5 |
|
Curing at room temperature not less than 72h |
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