Description
Direct bonded magnesia-chrome brick is a kind of refractory products primarily composed of periclase and magnesia-chromite spinel, bonded directly. This brick is made from high-purity sintered magnesia with less than 2% SiO₂and chromite as raw materials, produced through high-temperature sintering. The product has low impurity content and is fired at high and ultra-high temperatures, resulting in low porosity, high compressive strength, excellent wear resistance, corrosion resistance, thermal shock resistance, and spalling resistance.
Specification
| Item | Grade | ||||||
| ZMGe-16A | ZMGe-16B | ZMGe-12A | ZMGe-12B | ZMGe-8A | ZMGe-8B | DMGe-6 | |
| ω(MgO) / % ≥ | 60 | 58 | 68 | 65 | 75 | 70 | 75 |
| ω(Cr2O3) / % ≥ | 16 | 16 | 12 | 12 | 8 | 8 | 6 |
| ω(SiO₂) / % ≤ | 1.5 | 2.5 | 1.5 | 2.5 | 1.5 | 2.5 | 2.5 |
| Apparent Porosity / % ≤ | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| CCS / MPa ≥ | 40 | 40 | 45 | 45 | 45 | 45 | 45 |
| min35 | Min35 | min35 | Min35 | min35 | min35 | min35 | |
| R.U.L (0.2 MPa T0.6) / ℃ | 1670 | 1650 | 1700 | 1650 | 1700 | 1650 | 1700 |
Product Size: We offer refractory brick sizes that comply with ISO, EN, ASTM, JIS, etc, and customized sizes.
Applications
Widely used in critical areas of industries such as metallurgy, cement, and non-ferrous metals, slag line and severely corroded areas of secondary refining furnaces, transition zone and burning zone of cement rotary kilns, regenerator of glass furnaces, etc.
Our services: refractory technicians, refractory installation drawings, refractory bricks and castables, refractory masonry services, refractory mixes and precast cell, special shaped bricks, insulation materials, installation supervision, accident investigation and resolution, other customized services.
