Light weight high alumina insulation brick,JM23,JM26

Product Overview

Description

Light weight high alumina insulation brick, High alumina insulating brick,Insulating refractory brick,JM23,JM26,JM28

Characteristics:

1. Low thermal conductivity.

2. High strength and resistance to corrosion.

3. Low heat capacity.

4. Low shrinkage after heavy firing.

5. High insulation.

6. High refractoriness.

7. Low density.

8. Good thermal shock resistance under high temperature.

9. Thermal insulation energy-saving effect is good.

Physical and chemical index:

Item/Type		JM-23	JM-26	JM -28	JM -30	JM -32
Classification temperature, Reference using temperature (oC) ≥		1260	1430	1540	1650	1760
Bulk density (g/cm3)		0.8	0.9	0.9	1.0	1.25
Crushing strength (Mpa) ≥		1.3	1.6	2.1	16	16
Modulus of rupture (Mpa) ≥		0.9	1.4	1.6	2.1	2.1
Permanent linear change (oCX24h)% ≤		1350℃×4h 0.5	1400℃×24h 0.4	1510℃×24h 0.5	1620℃×24h 0.9	1730℃×24h 0.9
Thermal conductivity (W/m.k) ≤	800oC	0.18	0.31	0.32	0.44	0.50
	1000oC	0.2	0.34	0.35	0.45	0.52
	1200oC	-	0.40	0.41	0.47	0.56
Chemical Analysis (%)	Al2O3 ≥	37	58	67	73	77
	Fe2O3 ≤	1.0	0.8	0.8	0.6	0.4

Application:

Insulation Brick can be widely used for lining or insulation layers of various industrial furnaces and kilns in metallurgical industry, machine building industry, ceramic industry, chemical industry.