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Common fireclay brick N-2a

Commodity name： Common fireclay brick N-2a

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Common Fireclay Brick

Keyword：

Common fireclay brick N-2a

Fireclay brick is a clay product with Al₂O₃ content of 30% - 40% aluminum silicate material.

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Product Details

Common fireclay brick N-2a

Refractoriness: 1580℃

Bulk density: 2.15g/cm³

Compressive strength: 25MPa

Brief introduction:

fireclay brick is a fireclay product with Al₂O₃ content of 30% - 40% aluminum silicate material. fireclay brick is made of 50% soft fireclay and 50% hard fireclay clinker, batching according to certain particle size requirements, after molding, drying, and firing at a high temperature of 1300-1400℃.

Characteristics:

fireclay bricks have good thermal properties, resistance to rapid cooling and heating, and strong impact resistance, resulting in a long service life, with the ability to resist slag erosion at high temperatures without being destroyed;

Application:

Iron and steel manufacturing industry: industrial blast furnace, hot blast furnace, hot metal ladle, ladle, dip pit furnace, heat treatment furnace, refining furnace, reheating furnace, metal stirring furnace, dome furnace, etc.

Non-ferrous metal industry: smelting furnace, stirring furnace, etc.

Building materials industry: cement kiln, glass kiln, ceramic kiln, lime kiln, kiln car, tunnel kiln, rotary kiln

Energy and incineration: coke ovens, fluidized bed boilers, carbon roasters, incinerators

Physical and chemical indexes of fireclay refractory bricks

Project			Indicators
Project			N-1	N-2a	N-2b	N-3a	N-3b	N-4	N-5	N-6
Refractoriness(°C)	≥		1750	1730	1730	1710	1710	1690	1670	1580
Refractoriness under load at 0.2Mpa(℃), ≥			1400	1350		1320		1300
Permanent Linear Change on heating(%)		1400°C, 2h	+0.1 -0.4	+0.1 -0.5	+0.2 -0.5
Permanent Linear Change on heating(%)		1350°C, 2h				+0.2 -0.5	+0.2 -0.5	+0.2 -0.5	+0.2 -0.5
Open porosity (%)		≤	22	24	26	24	26	24	26	28
Cold Crushing Strength (MPa), ≥			30	25	20	20	15	20	15	15
Thermal shock resistance/time			N-2b and N-3b must carry out this inspection, and the measured data will be noted in the quality certificate

Allowable deviation of dimensions	Size ≤ 100		±2
	Size 101~150		±2.5
	Size 151~300		±2%
	Size 301~400		±6
Twist	Length s230			≤		2
	Length 231~300				2.5
	Length 301~400				3
Depth of missing edges and corners					7
Diameter of the cave					7
Slag finish thickness <1					On one side of the brick is allowed to have
Crack width		Width≤ 0.25			No limit
		Width 0.26~0.50			60
		Width> 0.5			Not allowed

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Common fireclay brick N-2a

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Common fireclay brick N-2a

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Product Details

Common fireclay brick N-2a

Refractoriness: 1580℃

Bulk density: 2.15g/cm³

Compressive strength: 25MPa

Brief introduction:

Characteristics:

Application:

Non-ferrous metal industry: smelting furnace, stirring furnace, etc.

Building materials industry: cement kiln, glass kiln, ceramic kiln, lime kiln, kiln car, tunnel kiln, rotary kiln

Energy and incineration: coke ovens, fluidized bed boilers, carbon roasters, incinerators

Physical and chemical indexes of fireclay refractory bricks

Project			Indicators
Project			N-1	N-2a	N-2b	N-3a	N-3b	N-4	N-5	N-6
Refractoriness(°C)	≥		1750	1730	1730	1710	1710	1690	1670	1580
Refractoriness under load at 0.2Mpa(℃), ≥			1400	1350		1320		1300
Permanent Linear Change on heating(%)		1400°C, 2h	+0.1 -0.4	+0.1 -0.5	+0.2 -0.5
Permanent Linear Change on heating(%)		1350°C, 2h				+0.2 -0.5	+0.2 -0.5	+0.2 -0.5	+0.2 -0.5
Open porosity (%)		≤	22	24	26	24	26	24	26	28
Cold Crushing Strength (MPa), ≥			30	25	20	20	15	20	15	15
Thermal shock resistance/time			N-2b and N-3b must carry out this inspection, and the measured data will be noted in the quality certificate

Allowable deviation of dimensions	Size ≤ 100		±2
	Size 101~150		±2.5
	Size 151~300		±2%
	Size 301~400		±6
Twist	Length s230			≤		2
	Length 231~300				2.5
	Length 301~400				3
Depth of missing edges and corners					7
Diameter of the cave					7
Slag finish thickness <1					On one side of the brick is allowed to have
Crack width		Width≤ 0.25			No limit
		Width 0.26~0.50			60
		Width> 0.5			Not allowed