High Quality Refractory Material Fused Magnesia - Alumina Spinel

• Customization: Available
• Feature: Long Time Materials
• Refractoriness (℃): 1770< Refractoriness< 2000
• Model NO.: FMA
• Shape: Powder
• Big Density: 3.5
• Spinel: 90%
• Process: Arc Melting
• Size: Grit or Powder
• Type: Refractory Material
• Material: Bauxite, Magnesia
• Transport Package: Bag
• Specification: GB
• Trademark: YZSD
• Origin: China
• Production Capacity: 10000mt/Year

Product Description

Refractory , refractories , insulation , fireclay , firebrick ,fire bricks ,raw material , fused,mullite,mullite stone,fused mullite,sintered mullite,refractory,refractories,refractory material,refractory brick,refractory products,fire proof material,mullite brick,high quality mullite , mullite factory , mullite exporter
magnesia , alumina ,spinel ,magnesite ,
Choosing best quality a-Al2O3 powder and high purity  burn magnesia powder as raw material ,
sintered after 2200celsius degree in electric arc furnace.

Fused magnesia-alumina spinel have following features:
1.big bulk density
2.Good thermal shock resistant
3.Good anti-erosion property

Main application:
a.For high quality refractory castable
b.As material for slide gate and lining brick of ladle etc.

Item			MA-70 Grit          Powder >0.1mm    ≤0.1mm		MA-65 Grit          Powder >0.1mm    ≤0.1mm
Chemical composition	Al2O3% ≥	67-75		67-75	64-68		64-68
	SiO2% ≤	0.4		0.4	0.6		0.6
	Fe2O3% ≤	0.5		0.5	0.25		0.3
	MgO%≤	23-31		23-31	31-35		3135
Physical property	Magnetic conternt % ≤	0.05		0.1	0.05		0.1
	Apparent porosity%≤	5.0				3.0
	Bulk density g/cm3≥	3.30				3.30