Calcined flint clay

Product Overview

Description

Calcined flint clay,Flint clay,Refractory chamotte

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.

Size and used:

Size of sand: 8-16,16-30,30-60,30-80,60-80,80-120 (mesh):Used for investment casting.

Size of powder: -200mesh,-270mesh,-325mesh: Used for investment casting and refractories.

Size of particles: 0-1mm,1-3mm,3-5mm,5-8mm,8-15mm,0-5mm,0-50mm:Used for refractories.

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
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
K20+Na20 %   (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
Refractorines °C (min)	1780	1770	1760	1750	1730	1710	1710	1680
Impurities %  (max)	0.5	1.5	2.0	2.5	3.0	3.5	4.0	5.0

Applications:

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.