描述

Alumina Magnesia Refractory Castables are refractory castables with corundum as aggregate, spinel material, and corundum powder as a matrix, and pure calcium aluminate cement as a binder. Its chemical composition is Al2O3 89%~93%, MgO 5%~8%. It has good corrosion resistance and slag penetration resistance and can be used as a large ladle lining for continuous casting.

Item Specification
AMC70 AMC80 AMC85 AMC95
Al2O3+MgO  %  A2O3+MgO% ≥70 ≥80 ≥85 ≥95
CCS, MPa  CCS 110℃×24h  110℃×24 ≥20
1000℃×3h  1000℃×3 ≥30
≥ 3 0
≥ 3 0
Test Temperature×3h ≥50 1500℃
≥ 5 0 1500 ℃
≥ 5 0 1500 ℃		 ≥50 1550℃
≥ 5 0 1550 ℃
≥ 5 0 1550 ℃		 ≥60 1550℃
≥ 6 0 1550 ℃
≥ 6 0 1550 ℃		 ≥60 1600℃
≥ 6 0 1600 ℃
≥ 6 0 1600 ℃
PLC, % ℃×3h  PLC， -0.5~+1.5
1500℃		 -0.5 ~ +1.81550℃ -0.2~+1.8
1550℃		 0~ +1.0
0~ +1.01600℃

Key Application Fields

  • Furnace linings: Used for lining of industrial furnaces like blast furnaces, electric arc furnaces and ladles, providing thermal insulation and protecting furnace bodies.
  • Thermal equipment components: Applied in high-temperature pipelines, heat exchangers and reactor linings to resist high temperature and chemical erosion.
  • Refractory structures: Utilized in kiln crowns, furnace doors and other high-temperature bearing parts due to its low bulk density and good thermal stability.