Bricks

ANKRAL^®SC
This is our standard quality brick based on burnt magnesia and chromite, made from dead burned magnesia. This product combines excellent micro structural flexibility with good coat ability and can therefore successfully be used in the entire zone of cement rotary kilns. The MgO contain is 81% and the Chrome contain is 7, 9%

ANKRAL^®SZC (Low Chrome)
RHI recommend the new developed quality ANKRAL-SZC for the China market. This is a hybrid magnesia low chromite brick made from dead burned magnesia. The content of Cr₂O₃ is only 1.9%. This product combines excellent micro structural flexibility with very good coat ability because of dead burned Magnesia/low Chromite/Hercynite combination. This quality can be use successfully in the entire zone of cement rotary kilns.
With this new RHI development, BRICK order and warehouse handling will be very easy in the future and furthermore it can save money because of only ONE quality for the completely basic zone of rotary kilns.

ANKRAL^®ZC (CHROME FREE!)
This is a development of a new generation of “heavy duty” magnesia brick based on HERCYNITE SPINEL and special burning technology. The quality is a burnt magnesia spinel brick made from fused magnesia; low iron sintered magnesia and fused hercynite.

This SYNTHETIC HERCYNITE is a patent by RHI Refractories

FeAl₂O₄ Hercynite-Analysis:			HERCYNITE: ►provides excellent physical and chemical features to bricks ►High ductility (fracture-mechanical strength) and flexibility against cracking and spalling ►Extreme high strength against spalling from mechanical stress (ovality, shell deformation, tyre areas, thermo-shock etc.) ►Excellent coating formation (similar to MgO-Cr bricks, mainly due to high Fe-Oxide content) ►Excellent chemical resistance against alkalis, sulphat, chlorine, clinker phases etc. ►Excellent thermals strength
Al₂O₃ Fe₂O₃ MgO MnO SiO₂ CaO	50,0% 47,0% 2,0% 0,3% 0,2% 0,1%

ANKRAL^® RC (CHROME FREE!)

This is our top spinel quality, made from burnt high-grade magnesia and prefabricated spinel. Outstanding properties are a great resistance against alkali and sulphur attack and excellent mechanical flexibility. MgO contain is 87% and Al₂O₃ contain is 10, 5% and Fe₂O₃ is less than 0.5%.