language

Magnesia-alumina spinel brick (periclase-pointed crystal brick)

Magnesia alumina spinel bricks are made of high purity magnesia and fused magnesia alumina spinel as raw materials and manufactured by a special process.

Key words:

Classification:

Refractory materials for other industries

Product inquiry

Related Products

Product Introduction

Magnesia alumina spinel bricks are made of high purity magnesia and fused magnesia alumina spinel as raw materials and manufactured by a special process. Due to the use of "in-situ spinel" technology and high-purity raw materials, the products have high strength, strong wear resistance, anti-spalling, anti-erosion and other characteristics at high temperatures. It is suitable for large-scale lime rotary kiln firing zone, sleeve lime kiln arch bridge, interior wall, working layer of Maerz kiln and other harsh parts.

Brand Index	HTMAF-85	HTMAF-83	HTMAF-80	HTMAF-76	Insulation
MgO(%) ≥	85	83	80	76	1
Al₂O₃ (%) ≥	8~11	10~13	10	10~15	5
SiO₂ (%) ≤	1.0	1.0	1.2	1.2	80
Fe₂O₃ (%)≤	0.7	0.7	0.9	0.9	1
The apparent porosity A · P(%) ≤	17	17	17	18	1
Bulk density B · D( g/cm³)≥	2.95	2.95	2.90	2.90	0.3
Normal temperature compressive strength C · c · S(MPa)	60	60	50	50
0.2MPa load softening temperature R · U · L (To₆ ℃)≥	1700	1700	1680	1650	1
Heating permanent line change P · L · C (1500 ℃× 2h)(%)	0~0.3	0~0.3	0~0.3	0~0.3
High temperature flexural strength H · M · 0 · R (1300 ℃ × 0.5H) (MPA) ≥	6.0	5.0	5.0	5.0	1
Thermal shock resistance T · S · R (1100 ℃ water cooling times) ≥	12	16	12	15	1
GuideThermal systemNumber T · C (1000 ℃)[W/(m · K)]≤	3.0	3.0	3.0	3.0	0.045