refractory clay brick

Generally,the soften temperature under load of the brick with good thermal shock resistance,high temperature resistance and air scour resistance is above 1300~1400℃.The brick was mainly used in the body and bottom of hot stove,blast furnace.

Technical Parameter

Clay brick for hot stove

Item Parameter RN-42 RN-40 RN-36 Al2O3 ≥42 ≥40 ≥36 Refractoriness ℃

RUL(Refractory under Load) ≥ 1750 1730 1690 1410 1350 1300 Reheating Liner Change Rate 1450℃x2h 0~-0.4  1350℃x2h 0~-0.3 0~-0.3 Apparent porosity% ≤24 ≤24 ≤25 Cold crushing strength Mpa ≥29.4 ≥24.5 ≥19.6 Clay brick for blast furnace

Item Parameter ZGN-42 GN-42 Al2O3 ≥42 ≥42 Fe2o3 ≤1.7 ≤1.7 Refractoriness

RUL(Refractory under Load) ≥ 1750 1750 1450 1430 Reheating Liner Change Rate 0~-0.2 0~-0.3 Apparent porosity% ≤15 ≤16 Cold crushing strength Mpa ≥58.8 ≥49

Henan Guangda Refractories Co., Ltd is a high-tech enterprise which is dedicated to the refractory materials research and development, production, trade and engineering. Our company owns a professional technical research and development team that has been engaged in the refractory materials for decade years, owns advanced production equipments and testing equipment with the excellent marketing team. Our company has a sound management system for the market development and after-sale service. We will, as always, insist on the principle of quality first, customer first, putting quality and customers first, wholeheartedly provide the best quality......