High Strength Alkali Resistant Refractory Brick RK-H is one high quality refractory brick.Characteristics:
1.High alkali-resistant
2.Good thermal-shock resistance
3.High mechanical strength
Raw materials: Flint clay, alkali resistant material
Application zone: Preheater, Calciner, Tertiary Air ducts
Physical and Chemical Index
| Chemical Composition | UNIT | SPEC |
| Al2O3 | % | 25~40 |
| Fe2O3 | % | ≤2 |
| Physical Properties | UNIT | SPEC |
| Bulk Density | BD | g/cm3 | ≥2.2 |
| Apparent Porosity | AP | % | ≤19 |
| Thermal Shock Resistance | TSR - in water at 1100 °C | cycle | ≥25 |
| Refractoriness Under Load | RUL (ta) | °C | ≥1250 |
| Cold Crushing Strength | CCS | MPa | ≥60 |
| Alkali Resistance | 1100 °C*5h | First grade |
Company Introduction
Luzhong Refractories
A comprehensive refractory service company integrating refractory research, raw material processing, thermotechnical kiln refractory designing, production, sales and service with an annual capacity of over 300,000 tons and currently having the following:National research institute: National and Local Joint Refractory Engineering Research Centre;Refractory base: Zibo Luzhong Refractories Co., Ltd., Xinjiang Tianshan Mountains Refractories Co., Ltd.;Special industrial ceramic base: Shandong Shengchuan Ceramics Co., Ltd., Ningxia Shengchuan New Material Co., Ltd.New materials base: Shandong Shengchuan New Material Science and Technology Inc.Raw material base: Yangquan Luzhong Refractories Co., Ltd., Zibo Langfeng High Temperature Material Co., Ltd.;
R&D Institute & Test equipments
Production facilities
Production Control
Qality Certificate
Package
Audited Supplier 
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