1700℃ Corundum Mullite Saggar | 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℃ corundum mullite saggers, core high-temperature containers for industrial sintering and material processing.

Our 1700℃ corundum mullite saggar is made of high-purity corundum (α-Al₂O₃ ≥85%) and mullite (3Al₂O₃·2SiO₂) raw materials, produced via precision molding and high-temperature sintering[1][5]. It features excellent high-temperature resistance, with long-term working temperature up to 1600℃ and short-term maximum temperature of 1700℃, maintaining stable structure even in extreme heat environments[1][2].

With a bulk density ≥2.85g/cm³, apparent porosity ≤25% and cold crushing strength ≥50MPa, it boasts superior thermal shock resistance (≥30 times of 1100℃ water cooling) and chemical inertness[1]. It resists corrosion from molten salts, alkalis and acidic powders, avoiding contamination to materials, and ensures high dimensional precision for easy use[2][5].

Widely applied in lithium battery cathode materials (NCM, LFP), electronic ceramics, magnetic materials, rare earth purification and laboratory high-temperature sintering. It is also ideal for sintering of ceramic substrates, calcination of catalyst materials, heat treatment of refractory powders, and processing of high-purity alumina materials. Additionally, it is widely used in metallurgical auxiliary material sintering, optical glass annealing, and new energy material research. Supporting standard and customized sizes, Shijiazhuang Hongtao is committed to providing high-quality, durable corundum mullite saggar solutions for global industrial partners.