Zhengzhou Hengzun Refractory Materials Co., Ltd

Zhengzhou Hengzun Refractory Materials Co., Ltd is based in China and lists refractory bricks on Global Trade Plaza. The range includes high-alumina bricks, clay bricks, mullite bricks and high-alumina poly light insulating bricks. High-alumina bricks are offered in three grades: first-class with Al2O3 75%, second-class with Al2O3 60–75% and third-class with Al2O3 48–60%. Standard size is 230×115×65 mm. Clay bricks have an aluminum content of 25–42% and compressive strength of 30–45 MPa, also in the 230×115×65 mm size. Mullite bricks contain 65–90% alumina, reach a refractoriness above 1790 °C and provide compressive strength of 100–120 MPa; both sintered and fused types are listed. High-alumina poly light insulating bricks operate below 1350 °C, feature porosity of 40–85%, bulk density around 1.5 g/cm³ and thermal conductivity under 1.0 W/(m·K). Buyers can send an enquiry through Global Trade Plaza.