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$Henan Dengfeng Guangda Refractory Co., Ltd$ $Henan Dengfeng Guangda Refractory Co., Ltd$

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Heavy Refractory

Insulating Refractory

Special shaped refractory

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High-alumina, mullite, and clay-based refractory bricks for carbon furnaces

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Heavy Refractory

Product introduction

Product Features: Low-creep, low-porosity bricks for carbon furnaces are manufactured using premium-grade calcined aluminous clinker, mullite, and corundum as the primary raw materials, with the addition of “three stones” and soft-bonding clay. The bricks are formed under high pressure and sintered at high temperatures. The main mineral phase of the product is mullite, giving it excellent high-temperature physical properties, including low creep, high load softening temperature, low porosity, and superior resistance to chemical erosion.

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Product details

Project	Synthetic mullite brick	Synthetic mullite brick	Low-Creep Clay Brick	Clay brick
Project	MG-65	EN-58	KA-42	KA-42
Al ₂ O ₃ %, ≥	65	59	45	42
Fe ₂ O ₃ %, ≤	1.5	1.5	1.8	2.5
Apparent porosity, %, ≤	17 (23)	17 (21)	17 (22)	19 (24)
Bulk density, g/cm³, ≥	2.5	2.35	2.2	2.15
Compressive strength, MPa, ≥	70	60	50	40
High-temperature creep rate at 0.2 MPa	1400℃ 0.3	1350℃ 0.3	1280℃ 0.3	1250℃ 0.3
0.2 MPa load-softening temperature R.U.L℃, ≥	1500	1480	1450	1420
Reburning line variation rate P.L.C%	1500℃ for 2 hours 0.2 to -0.2	1500℃ for 2 hours 0.1 to -0.4	1400℃ for 2 hours 0.1 to -0.2	1400℃ for 2 hours 0.1 to -0.4

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$GuanDa Refractory Material Co., Ltd. of Dengfeng City, Henan Province$

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dfgdnhf@sina.com

+86-371-62986719

East Section of Yingbin Avenue, Ludian Town, Dengfeng City

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