$Raw Materials for Refractory - Black Silicon Carbide 0-1/1-3/3-5mm and Powder Made in China System 1$
$Raw Materials for Refractory - Black Silicon Carbide 0-1/1-3/3-5mm and Powder Made in China System 2$

$Raw Materials for Refractory - Black Silicon Carbide 0-1/1-3/3-5mm and Powder Made in China$

$Raw Materials for Refractory - Black Silicon Carbide 0-1/1-3/3-5mm and Powder Made in China System 1$

$Raw Materials for Refractory - Black Silicon Carbide 0-1/1-3/3-5mm and Powder Made in China System 2$

Raw Materials for Refractory - Black Silicon Carbide 0-1/1-3/3-5mm and Powder Made in China

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 2000 m.t./month

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Quick Details

Place of Origin:	China (Mainland)	Brand Name:	CNBM	Model Number:	CF180# 240# 320# 800# 1200#
Material:	SIC	Usage:	Lapping, Polishing,Blasting, Refractories	Abrasive Grain Sizes:	46#..1200#...2000#..2500#
color:	black and green	hardness:	9.15 mosh	melting point:	2250

Packaging & Delivery

Packaging Details:	bags, cartons
Delivery Detail:	15-20 days

Specifications

silicon carbide Size Available:
F10-F220,F240-F1200
Other special size could be supplied as required.

1.used for made abrasive products 2.professional manufacture 3.prompt reply-within 24hours 4.prompt delivery-within 15days.





Grit	SiC	F.C.	Fe2O3
F12-F90	98.50%min	0.20%max	0.60%max
F100-F150	98.00%min	0.30%max	0.80%max
F180-F220	97.00%min	0.30%max	1.20%max
F230-F400	96.00%min	0.40%max	1.20%max
F500-F800	95.00%min	0.40%max	1.20%max
F1000-F1200	93.00%min	0.50%max	1.20%max
P12-P90	98.50%min	0.20%max	0.60%max
P100-P150	98.00%min	0.30%max	0.80%max
P180-P220	97.00%min	0.30%max	1.20%max
P230-P500	96.00%min	0.40%max	1.20%max
P600-P15000	95.00%min	0.30%max	1.20%max
P2000-P2500	93.00%min	0.50%max	1.20%max
Black Silicon Carbide is brittle and sharp and has electrical and heat conductivity in some degree. Aplications : Black Silicon Carbide is suitable for make grinding wheels, cutting wheels, mounted wheels, oil stone, abrasive media, and also suitable for surface grinding, lapping or polishing. The abrasive products made of it are suitable for working on Cast Iron, Non-ferrous Metal, Rock, Leather, Rubber, Wood, Ceramic, etc. Black Silicon Carbide is also broadly used as high-grade refractory material and metallurgical additive.

Black silicon carbide 0-1/1-3/3-5mm and powder made in China

Q: which kind of material is chosen for fireproofing window?: Firstly, fireproofing window glass must be tempered, ordinary glass won't play a role of fireproofing, and fireproofing window fan is fixed, can't be open, if you can open it, it won't play a role of fireproofing. And you can ask the property to provide texture report of fireproofing windows, fireproof material stipulated by our national fire protection laws and regulations must have fireproofing inspection reports, there must be. and fire window glass should have a fireproofing sign. The main role of fireproofing window is to isolate the fire, and play a role of fireproofing and escaping, avoid the fire quickly spread in.

Q: Which industry does refractory belong to? Does it belong to construction industry?: I do not recognize all the answers. No matter what kind of refractory can be used in construction. Biulding syove or kiln is construction. So personally, it belongs to construction indusrty.

Q: How long is the duration of fire resistance that fireproof window of level B can endure?: Fire proof window of level B is the fire proof window whose duration of fire resistance is not less than 1 hour.　 Technical requirements: One, Materials and fittings (1) the frame of windows draw on steel or wood frames which have certain intensity and are able to ensure the integrity and stability of components. 　(2) Steel frame and layering can use galvanized steel or stainless steel plate. Its selection criteria shall be in line with provisions 5.1 of GB12955< steel fire door general technical conditions >. (4) The internal fillings of steel, wood frames should use non combustible materials. (5) Fire proof windows can opt for qualified products without affecting the performance of fire proof window. Light transmittance of glass shall not be less than 75% of the same layer of ordinary flat glass. 　(6)The sealing material between the frame and the fireproof glass should adopt the nonflammable materials, functioning as the fire blocker. (7)Hardware fittings should be tested for qualified products.

Q: How long usually will the A-level fireproof materials prevent the flame?: The classification of A-level materials is based on GB8624 - 2006 building materials and products combustion performance of grading method. Specific technical requirements are: 1, temperature ≤30 degrees; mass loss rate ≤50%; continuous burning time is 0; 2, the gross calorific value of main components, overall products, external non-substantial components ≤2.0MJ / kg; any internal non-substantial component ≤1.4MJ / kg;

Q: what kind of fireproof materials is used for high rise buildings?: steel is recommended As a form of high-rise building structure, steel is widely used especially in the ultra-high-rise and long span construction showing strong vitality, for its high strength, light weight, and good extensibility, resistance to shock and short construction period. The mechanical strength of steel decreases with rising temperature at about 5000 ℃, decreasing about 40%-50%. the mechanical properties of steel, such as yield points, compressive strength, elastic modulus, and load capabilities have declined rapidly , quickly losing their ability to support, leading to building collapse. Therefore, it is imperative to protect steel structures. Brushing or spraying the coating on the surface of steel structure to prevent burning and insulate heat. It also prevents undermining the rolled steel from rapid temperature elevation and avoid collapse of building for lose of supporting capacities.

Q: Selection of refractory materials?: Acid refractory with silicon oxide as the main component, are commonly used in brick and clay brick. Silica is silica containing more than 93% silica products, raw materials used in silica, silica and other waste, the acid resistance of slag erosion ability, high load softening temperature, volume shrinkage after repeated burning, or even a slight expansion; but it is vulnerable to the erosion of basic slag, low thermal shock resistance. The brick is mainly used for thermal equipment of glass furnace, coke oven, acid furnace etc.. Clay brick with refractory clay as the main raw material, containing 30% to 46% of alumina, weak acid refractory material, heat shock resistance, resistance to acid slag, widely used.

Q: What kind of refractory materials are used in the intermediate frequency furnace?The domestic boric acid can be used as a lining?, how much is the rate?: Acid, neutral, basic and composite materials are used in intermediate frequency furnace. Boric acid is used according to the type of steel, the specific ratio is too generalized, and it shall be determined when the type of steel is detailed.

Q: Which kind of external wall fire barrier zone material is better?: I recommended foam cement and particulate thermal insulation composite waterproof material, which is fire isolation area product, which uses surface of vertical?plate arranged fiber technology to make the compressive?strength in the vertical direction up to above 80KPa. At the same time, under the conditions of both exterior heat insulation and effects of humiture in the long-term, it can still maintain the non-aging performance of various aspects, and safety (reliability), fire resistance and excellent durability.

Q: Is there anyone who can explain how to grade the level of fire insulation board?: The classification of fire proof level for thermal insulating material 1, Burning performance of building material can be classified into the following several grade according to national standard GB8624-97: Non combustible building materials: Non-conbustible material. Class B1: Refractory building materials: Flame retardant materials have good flame retardant effect.

Q: Is it normal for caable fire resistant material to catch on fire?: Abnormal, preventive measures: 1 take fire preventive measures. Measures taken for fire retardant measures of cable: (1) seal closely with fire resistant materials holes ran by cables through walls, shafts to prevent the cable fire, high temperature gas diffusion and spread when cables are on fire. (2) to wrap the cable with the insulation refractory material, when the cable is surrounded with fire, warpped cable is insulated by the insulation material from fire, so it will not be burned. If the cable itself is on fire, fire will be extinguished thankes to lack of oxygen in warpped cable, to avoid the fire to spread out. 2 to strengthen the cable circuit switch and regular protective check and maintenance, to ensure that the action is reliable. 3 to strengthen the cable operation and monitoring, to avoid the overload of the cable operation. . 4 regularly clean dust on the cable, to prevent cable from catching on fire due to the accumulation of dust. 5 to ensure the construction quality, the quality the cable must be strictly in line with the requirements and standards. 6 cable laying should maintain enough distance form the heat pipe, control cable is no longer than 0.5 meters; power cable is no longer than l meters. Control cable and power cable should be divided into slots, be layered and seperated instead of being overlapped . For the parts that do not meet the requirements, measures must be taken to insulate heat and fire. 7 regularly teat cable , abnormal problem should be handled in a timely manner. 8 install fire alarm so that fire will be discovered on time, and cables will not catch on fire. 9 the cable trench should be kept dry to prevent the cable from being affected with damp, or leading to declined insulating function and short circuit.

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