magnesite carbon bricks for steel converter and bof steelmaking are made of high-melting alkaline oxide magnesium oxide (melting point 2800℃) and high-melting carbon materials that are difficult to be infiltrated by slag as raw materials, with various non-oxide additives added. A non-burning carbon composite refractory material combined with a carbon binder. magnesite carbon bricks are mainly used for lining of converters, AC electric arc furnaces, DC electric arc furnaces, and slag lines of ladle.
As a composite refractory material, magnesite carbon bricks effectively utilize the strong slag erosion resistance of magnesite and the high thermal conductivity and low expansion of carbon, which compensates for the biggest disadvantage of poor spalling resistance of magnesite.
magnesite carbon bricks are made of dead burnt magnesite (or fused magnesite) and carbon materials (mainly crystallized graphite) as raw materials, using resin as a binder to prepare and press, and heat treatment. In order to improve the oxidation resistance, antioxidants such as metals are often added.
magnesite carbon bricks is an ideal lining material with good thermal shock stability, corrosion resistance and spalling resistance.
The main characteristics of magnesite carbon bricks are:
Good high temperature resistance;
Strong slag resistance;
Good thermal shock resistance;
Low high temperature creep.
Technical data of magnesite carbon brick:
Item | magnesite carbon brick | |||||||
MgO-C brick | MT5A | MT8A | MT10A | MT12A | MT14A | MT14B | MT16A | MT18A |
MgO % Min | 85 | 82 | 80 | 78 | 76 | 74 | 74 | 72 |
C % Min | 5 | 8 | 10 | 12 | 14 | 14 | 16 | 18 |
B.D. g/cm3 Min | 3.15 | 3.12 | 3.10 | 3.05 | 3.03 | 2.98 | 3 | 2.95 |
AP % Max | 5 | 4.5 | 5 | 4 | 3.5 | 4 | 3.5 | 3.5 |
CCS Mpa Min | 50 | 45 | 40 | 40 | 40 | 40 | 35 | 35 |
magnesite carbon bricks usage:
magnesite carbon bricks have a wide range of uses, and can be used in key parts of thermal equipment such as steel-making converters, electric arc furnaces, ladles, and out-of-furnace refining furnaces.
Since the use of magnesite carbon bricks instead of magnesite chrome bricks in my country's refined ladle slag line bricks, the comprehensive use effect is obvious. The 300t ladle slag line of Baosteel Co., Ltd. started to use MT-14A magnesite carbon bricks in July 1989, and the life of the slag line was maintained above 100 times; the 150T electric furnace ladle slag line used low-carbon magnesite carbon bricks to smelt cord steel, and the tapping temperature 1600℃~1670℃, the obvious effect has been achieved.
Packaging for magnesite carbon brick
1.Pallet+Paper or Steel angle bead+Paper board +Plastic or Steel belt +Plastic film
(1)Wooden pallet size:Usually0.92*0.92m(standard brick),but 1*1m (special shape brick) at most,
(2) Load weight of each pallet:Usually 1.5-1.7Tons, max 2.0 Tons.
(3)20 Foot Container can be loaded max 25-26Tons, about 13-16Pallets.
2.Can make the magnesite carbon brick package according to customer's requirements.
Shipping for magnesite carbon brick
1.FEDEX/DHL/UPS/TNT for samples.
2.By Sea for batch goods.
3.Customers specifying freight forwarders or negotiable shipping methods!
4.Delivery Time of magnesite carbon brick:
(1)magnesite carbon brick Samples:7 days for common shape samples;15 days for special shape samples.
(2)Batch goods:Within 7-10 days for in stock bricks from ordering to deliver goods and within 15-30 days for making new magnesite carbon bricks.
Payment Terms
(1)T/T, Western Union,LC;
(2)Usually 30% deposits,70% balance to be paid before delivery or against copy of BL or negotiations
MOQ: Usually 1 container, MOQ 1Tons.
Company information:
Henan hongtai kiln refractory Co., LTD. Is well aware that there are thousands of demands from customers, which can be summarized in four aspects: reliable quality, timely delivery, reasonable price and considerate service.The company will continue to adhere to the corporate spirit of "contributing to society and serving customers" and the business philosophy of "mutual benefit, win-win, integrity, efficiency, preciseness and responsibility".
Henan hongtai kiln refractory Co., LTD. Main products are high alumina brick, clay brick, silica brick, fused zirconium corundum brick, magnesite brick, magnesite carbon brick, fireproof ball lightweight insulation brick, light weight mullite insulation brick ,wear-resistant pouring material, corundum pouring material, low cement high strength pouring material, impermeable material, self-flowing material, plastic material, and various types of refractory materials.
Henan hongtai kiln refractory Co., LTD. : "quality first, reputation first, customer first: it is our aim."Scientific management, strong technical force, perfect testing means, advanced technological equipment and stable product quality are the guarantee of quality service.Henan hongtai kiln refractories co., LTD sincerely hopes to cooperate with you hand in hand and in good faith.
Production:
raw material, broken, mixing, mold, preheating, sintering, inspection, packing
Inspection:
Thermal shock resistance tester
Room temperature withstand voltage tester
High temperature bending tester
High temperature performance tester
Load softening tester
Chemical spectrum analyzer
Certificate:
Hongtai Kiln Refractory has professional sales and after-sale service team who provide customers all-around service about product selection, transportation, installation and operation technology training etc. Now we have established cooperation relationship with many science and research units and our products have been sold to Vietnam, Thailand, Malaysia, South Korea, Pakistan, Kazakhstan, India, Japan, Indonesia, Germany, Italy, Mongolia, Argentina, colombia, Egypt, America, Mauritania and etc.