Tap Hole Block

Tap hole block is made of high purity fused magnesia and large crystal magnesia, mixed with high purity flake graphite and added with special antioxidant and resin binders,usually shaped by cold isostatic presses. The Tap Hole Brick of converter is one of the most important technical indexes of steel melting, which directly affects the melting period, productivity and slag retaining,therefore affects the quality of steel.The Tap Hole Block can improve the speed of laying, shorten the whole laying time, and reduce the steel flow to improve the quality of molten steel, reduce the steel process temperature drop, enhance the Tap Hole Block erosion resistance and mechanical erosion resistance.

Characteristics:
1.Good oxidation resistance;
2.High strength, good corrosion resistance;
3.Good integrity, easy replacing and long life;

Application:
Tap hole block is ideal material taphole of large and medium furnace.

Technical Data Sheet:

Item		Unit	Tap Hole Block
			FMC-12
Chemical Composition	MgO	%	>97
	CaO	%	<1.5
	SiO2	%	<0.7
	Fe2O3	%	<0.6
	Al2O3	%	<0.2
	Residual Carbon	%	≥12
Apparent Porosity		%	<5.0
Bulk Density		g/cm3	≥2.95
Cold Crushing Strength		MPa	≥35
Max Application Temperature		℃	≥1750