Magnesia Carbon Brick - China Refractory Brick & Castable Manufacturer

Magnesia Carbon Brick For Sale

Good high temperature property

Strong slag and thermal shock resistance property

Low creep at the high temperature property

High corrosion resistance & resistance to peeling off

Good Spalling resistance/ antistrip performance

Standard Brick Sizing is 230*114*65 mm

Size and specification can be tailored by furnace type

Magnesia carbon brick ( Mgo ≥70-88% )

Free Sample Available, Package & Shipping Costs

Email: inquiry@rsrefractorygroup.com

Description of Magneisa Carbon Brick

Magnesia Carbon Bricks, a kind of unburned carbon composite refractory, are manufactured with magnesium oxide of alkaline oxide with high-melting-point (2800℃) and carbon material with high melting point that is difficult to be eroded by furnace slag as the raw materials, and added all kinds of non-oxides additive and carbon binding agent. Our magnesia-carbon brick is made from more than 98% electrically fused magnesite, high purity graphite and metallic antioxidants as needed. Size and specification can be tailored according to furnace type.

Magnesia Carbon brick is resin-bonded brick made from dead-burned or fused magnesia and graphite. Anti-oxidant can be added if required. Magnesia Carbon brick has good performance in thermal resistance, corrosion resistance and spalling resistance. Widely used in converters,BOF, EAFs, steeling ladles and refining furnaces.Any Interests, please contact us for more information and detailed quotation.

Note: Magnesia carbon brick is a kind of non-burning product, its physical and chemical indicators are: MgO70～85%, C l0～20%, apparent porosity ≤3%, bulk density 2.87g/cm3, compressive strength 40～50MPa, 1400°C anti- Folding strength l0～15MPa，Refractoriness ≥1790℃

Application of Magneisa Carbon Brick

Magnesia Carbon Bricks are mainly used for converters, steel ladle, AC arc furnaces, linings of DC arc furnaces, and slag lines of ladle. Steelmaking hearth furnace, electric furnace hearth and furnace wall, permanent lining of oxygen converter, non-ferrous metal smelting furnace, high temperature tunnel kiln, calcined magnesia brick and cement kiln lining, furnace bottom and furnace wall, glass kiln Hot room lattice bricks.

The Specifications of Magnesia Carbon Brick For EAF

ITEM	unit	CF-MC-8	CF-MC-10	CF-MC-12	CF-MC-14	CF-MC-18	CF-MC-20
MgO	%	≥84	≥82	≥80	≥78	≥74	≥72
C (+)	%	≥8	≥10	≥12	≥14	≥18	≥20
Bulk Density	g/cm3	≥3.05	≥3.02	≥3.00	≥2.97	≥2.92	≥2.88
Apparent porosity	%	≤4	≤4	≤4	≤3.5	≤3.5	≤3.5
C.C.S	MPa	≥45	≥40	≥40	≥40	≥35	≥30
M.O.R	MPa	≥6	≥6	≥8	≥8	≥8	≥8
(1400ºC*30ms)	MPa	≥6	≥6	≥8	≥8	≥8	≥8

The Specifications of Magnesia Carbon Brick For LF

ITEM	unit	CF-MC-5	CF-MC-8	CF-MC-10	CF-MC-12	CF-MC-14	CF-MC-16	CF-MC-18
MgO	%	≥87	≥84	≥82	≥80	≥76	≥74	≥72
C (+)	%	≥5	≥8	≥10	≥12	≥14	≥16	≥18
Bulk Density	g/cm3	≥3.10	≥3.08	≥3.02	≥3.00	≥2.97	≥2.95	≥2.93
Apparent porosity	%	≤5	≤5	≤4	≤4	≤3	≤3	≤3
C.C.S	MPa	≥45	≥45	≥40	≥40	≥35	≥35	≥35
M.O.R	MPa	≥6	≥6	≥8	≥8	≥10	≥10	≥10
(1400ºC*30ms)	MPa	≥6	≥6	≥8	≥8	≥10	≥10	≥10

The Specifications of Magnesia Carbon Brick For Converter

ITEM	unit	CF-MC-8	CF-MC-10	CF-MC-12	CF-MC-14	CF-MC-15	CF-MC-16	CF-MC-18	CF-MC-20
MgO	%	≥86	≥80	≥78	≥76	≥75	≥74	≥72	≥70
C (+)	%	≥8	≥10	≥12	≥14	≥15	≥16	≥18	≥20
Bulk Density	g/cm3	≥3.05	≥3.03	≥3.00	≥2.96	≥2.95	≥2.95	≥2.92	≥2.88
Apparent porosity	%	≤4	≤4	≤4	≤3	≤3	≤3	≤3	≤3
C.C.S	MPa	≥45	≥40	≥40	≥40	≥35	≥35	≥35	≥30
M.O.R	MPa	≥6	≥6	≥6	≥8	≥8	≥8	≥8	≥8
1400ºC*30ms	MPa	≥6	≥6	≥6	≥8	≥8	≥8	≥8	≥8

Use Scene Of Magnesia Carbon Brick

Magnesia Carbon Bricks is widely used in converters, EAFs, steel ladles, furnace wall and working lining of all kinds of furnace.

Magnesia carbon bricks main production processes

Batching is the first process, Proportioning the raw material of magnesia carbon bricks strictly according to formulation requirements

Mixing process affects the quality of magnesia carbon bricks adobes and finished magnesia carbon bricks.When mixing, first mix coarse and middle Particle.Then add the binding agent at low speed mixing to make the aggregate and binding agent fully uniform.And then add graphite high speed mixing to make the aggregate, graphite and binder fully uniform.Then add magnesia powder and additives to continue mixing. When the graphite,magnesia particles, fine powder and additives are intensive mixing, the mixing ends.

The molding of magnesia carbon brick should be pressed by high pressure machine. Making magnesia carbon brick adobe density greater, ensure high volume density and low apparent porosity, strictly control the weight of single brick.

The brick adobe heat treatment,first,the bricks are placed at room temperature for 5-6 hours to fully volatilize.Then heat treatment at 150 C -200 C, time is not less than 32 hours,And below 80℃at room temperature, time is not less than 16 hours.

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