Specifications

1. AL2O3:40%-48%.
2. High refractoriness.
3. Physicochemical stability.
4. HS code:25083000

Features

1.  High refractoriness.

2.  Physicochemical stability.

3.  Volume density high .

4.  Low porosity.

5.  Low water absorption.

6.  Fully calcined

7.  Low impurity content.

8.  Pure white.

Specifications:

Physical and chemical index:

 

Item/Grade	YNS45	YNS45	YNS44	YNS44	YNS43	YNS42	YNS40	YNS36
	A	B	A	B
AL2O3 %	46-48	45-48	44-48	44-48	43-48	42-46	40-46	36-42
SiO2 %	49-52	49-52	50-53	50-53	50-53	50-53	50-54	50-55
Fe2O3 %   (max)	1.0	1.15	1.3	1.5	2.0	2.5	3.0	3.5
Ti02 %   (max)	0.8	0.8	0.9	0.9	1.0	1.1	1.2	1.3
K2O+Na2O %   (max)	0.3	0.3	0.4	0.4	0.4	0.5	0.5	0.6
Ca0+Mg0 %   (max)	0.5	0.5	0.5	0.5	0.5	0.6	0.7	0.8
Bulk density g/cm³(min)	2.58	2.55	2.52	2.50	2.45	2.40	2.37	2.30
Refractoriness °C(min)	1780	1770	1760	1750	1740	1720	1710	1700
Impurities %  (max)	0.5	1.5	2.0	2.5	3.0	3.5	4.0	4.5

 

Applications:

Calcined flint clay is mainly used for manufacturing high-quality refractory products, refractory castable, sagger, kiln furniture, crucibles, ceramic fiber,  precision casting sand, ceramics products, etc.