Standard Grade Magnesia Spinel Brick-Sgmtl-I

• Customization: Available
• Refractoriness (℃): 1770< Refractoriness< 2000
• Feature: Long Time Materials
• Model NO.: SGMTL-I
• Type: Refractory Material
• Shape: Brick
• Transport Package: Export Wooden Pallet
• Trademark: Nie
• Origin: China

Product Description

Luzhong Magnesia hercynite Spinel bricks are new developed chrome-free refractories for Cement Rotary Kilns, with excellent performance,our products have been wide used in the domestic and overseas cement projects.
 
Characteristics:
1.Excellent formation of uniform and stable coating
2.Outstanding thermal-shock resistance
3.Excellent resistance to chemical attack
4.Low thermal conductivity (230-280ºC)

Application zone: Sintering zone of cement rotary kiln.
 
Raw Material:
1.Top grade sintered magnesia;
2.High-purity sintered iron alumina spinel (hercynite)

Physical and chemical index

Chemical composition		UNIT	SPEC	Typical
MgO		%	≥85	85~88
Al2O3		%	≥4	4~6
SiO2		%		0.8
Fe2O3		%	≥4	4~6
CaO		%		1.3
Physical properties		UNIT	SPEC	Typical
Bulk Density	BD	g/cm3	≥2.9	2.9~2.95
Apparent Porosity	AP	%	≤18	17
Thermal Shock Resistance	TSR - in air at 950 °C	cycle	≥95	100
Refractoriness Under Load	RUL (ta)	°C	≥1650	1650-1700
Thermal Expansion	TE - at 1000 °C	%		1.2
Cold Crushing Strength	CCS	MPa	≥50	60
Thermal Conductivity	TC - at 700 °C	W/mK	≤3.5	3.5
Note: The above datas are the representative average value measured in accordance with the test methods for general purpose and vary with the fluctuations of normal production conditions.These datas are provided as a technical service,sometimes may be adjusted, so they should not be regarded as the product index.

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