JM30 Lightweight Mullite Refractory Insulation 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 JM30 lightweight mullite refractory insulation bricks—core energy-saving, high-temperature insulation materials for industrial kilns, furnace linings and high-temperature equipment. Our JM30 lightweight mullite bricks are widely favored for their high alumina content, lightweight, heat-insulating and corrosion-resistant properties, ideal for thermal insulation systems in metallurgy, ceramic, glass, petrochemical and aerospace industries.

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 JM30 lightweight mullite refractory insulation bricks—core energy-saving, high-temperature insulation materials for industrial kilns, furnace linings and high-temperature equipment. Our JM30 bricks are widely favored for their high alumina content, lightweight, heat-insulating and corrosion-resistant properties, ideal for thermal insulation systems in metallurgy, ceramic, glass, petrochemical and aerospace industries, aligning with global “dual carbon” energy-saving goals[4][5].

As a high-performance lightweight insulating product, JM30 lightweight mullite refractory insulation brick is made of high-purity mullite raw materials with Al₂O₃ content ≥70% and Fe₂O₃ ≤0.6%, produced via pore-forming, precision molding and high-temperature sintering. It has a bulk density of 0.6-1.2g/cm³, cold crushing strength of 1.0-3.5MPa, and excellent thermal stability with ≤0.2% linear shrinkage at 1500℃ for 12 hours.

As a high-performance lightweight insulating product, JM30 brick is made of high-purity mullite raw materials with Al₂O₃ content ≥70% and Fe₂O₃ ≤0.6%, produced via pore-forming, precision molding and high-temperature sintering[1][2]. It has a bulk density of 0.6-1.2g/cm³, cold crushing strength of 1.0-3.5MPa, and excellent thermal stability with ≤0.2% linear shrinkage at 1500℃ for 12 hours[1][2].

With low thermal conductivity (0.18-0.56 W/m·K at 200-600℃), JM30 brick reduces industrial furnace energy consumption by 20-30% and cuts heat loss effectively. It features superior thermal shock resistance, chemical inertness and lightweight design, is asbestos-free, resists acid and alkali corrosion, and ensures a clean working environment, suitable for extreme high-temperature zones.

With low thermal conductivity (0.18-0.56 W/m·K at 200-600℃), it reduces industrial furnace energy consumption by 20-30% and cuts heat loss effectively[1][3]. It features superior thermal shock resistance, chemical inertness and lightweight design, is asbestos-free, resists acid and alkali corrosion, and ensures a clean working environment, suitable for extreme high-temperature zones[2][5].

Widely applied in ceramic kilns, glass furnaces, petrochemical reactors, metallurgical equipment and aerospace kilns as insulation linings or back insulation layers, JM30 lightweight mullite refractory insulation brick supports standard size (230×114×65mm) and customized solutions. Shijiazhuang Hongtao adheres to innovation, delivering high-quality JM30 products for global industrial partners.

Widely applied in ceramic kilns, glass furnaces, petrochemical reactors, metallurgical equipment and aerospace kilns as insulation linings or back insulation layers[1][2][5], it supports standard size (230×114×65mm) and customized solutions. Shijiazhuang Hongtao adheres to innovation, delivering high-quality JM30 lightweight mullite refractory insulation bricks for global industrial partners.