1700℃ First-Grade High-Alumina Refractory Brick | Shijiazhuang Hongtao Technology

Shijiazhuang Hongtao Technology Co., Ltd., a professional high-tech enterprise based in Zhengding County, Shijiazhuang, Hebei, China, specializes in R&D, manufacturing and customization of 1700℃ first-grade high-alumina refractory bricks, the core material for high-temperature industrial kilns and equipment linings.

Our first-grade high-alumina refractory bricks are made of high-purity bauxite clinker and fused corundum, with Al₂O₃ content ≥75%[2][4], strictly complying with the first-grade high-alumina brick standard. Produced via high-pressure molding and high-temperature sintering (1500-1600℃), they feature excellent high-temperature resistance, with long-term working temperature up to 1600℃ and short-term maximum temperature of 1700℃[3][4].

With bulk density ≥2.6g/cm³, apparent porosity ≤22% and cold crushing strength ≥60MPa[4][7], they have superior thermal shock resistance, strong chemical inertness, and can resist erosion from acidic, alkaline slags and molten metals without material contamination[1][3].

Widely applied in metallurgy, building materials, glass, petrochemical and new energy fields[3][5], they are ideal for blast furnace linings, glass furnace regenerators, cement rotary kiln linings and high-temperature equipment protection. We support standard and customized sizes, with Shijiazhuang Hongtao committed to providing high-quality, durable first-grade high-alumina refractory brick solutions for global partners[6][8].