Abrasives Raw Material Green Silicon Carbide/Carborundum Grit Particle

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China main port
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
2000 m.t./month

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Product Description:

Abrasives Raw Material Green Silicon Carbide/Carborundum grit particle

 

1. Description:

Green silicon carbide is produced in the same way as Black silicon Carbide 

except for some differences in raw material. Silicon carbide is an extremely hard 

material (Mohs hardness 9.4), is chemically inert and does not melt. Silicon Carbide 

has a high thermal conductivity, a low coefficient of thermal expansion, is thermal 

shock and abrasion resistant and has strength at high temperatures. 

 

2. Sizes:

Grits: F#8, F#10, F#12, F#16, F#24, F#30, F#36, F#40, F#46, F#54, F#60, 

F#70, F#80, F#90, F#100, F#120, F#150, F#180, F#220

Powder: F#230, F#240, F#280, F#320, F#360, F#400, F#500, F#600, 

F#800, F#1000, F#1200, F#1500, F#1800, F#2000

 

3. Chemical & Physical features:

  Chemical compositions

                     Physical properties

Items

Value of specification (%)

             Items

Property

SIC

        99.1min

             Color

Green

Melting point

2250°C 

F.C.

       0.20max

       Hardness     

9.5

Bulk density

≥1.38g/cm3

Fe2O3

       0.20max

    Real density

3.9 g/cm3 min


Abrasives Raw Material Green Silicon Carbide/Carborundum Grit Particle


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Q:What is the use of refractory?
It is fire-retardant and insulated.
Q:How many kilns using refractories are needed? What are the furnaces respectively?
Kiln and five hundred-degree centigrade thermal equipment need to use refractories, glass furnaces, electric arc furnaces, mixer, cement rotary kiln, open hearth furnace and limestone kiln; in fact, when the temperature is more than four, the mesh belt furnace, blast furnace, cupola oven, stove, pushing plate kiln, furnace, heat treatment furnace, roller kiln, down draft kiln, ladle, coke, shuttle kiln,etc.
Q:What are the fire endurance requirements of class A fire resistant door ?
Hardwares are professional fire resistant lock, fireproof door closer, fire hinge, handle, latch and sequencer, and they can also be configured according to user needs. Fire resistant time of class A and B fire resitant door is 12h and 09h respectively. It can also be customized according to customer needs into a variety of non-standard specifications. Steel fire door is developed in accordance with the national standard GB12955-2008, and in line with ISO3008, BS476 standards. Requirement: fire endurance should meet the A,B and C fireproof requirements respectively. You can also choose to install hold-open door device to leep the door leaf usually in open. Doorframe and door leaf is made up of imported or domestic quality electrolytic steel plate, electro galvanized steel plate or stainless steel plate, filled with quality expanded perlite fireproof panel which can withstand high temperature above 1200 ℃. The surface is processd with electrostatic spraying plastics, and auxiliaries are stainless steel fire resistant lock (or pipe shaft lock ) , galvanization for steel (or stainless steel) fire hinge, domestic(or imported) door closer.
Q:What is streaming fireproof material?
Streaming fireproof material is castable refractory that can flow and degas without virbration, which is suitable for thin-wall or places that cannot be molded by vibration because of complex shapes. Well, appropriate amount of water is necessary for it. Its characteristic goes that it can be cast into various shapes of construction body without virbration and it will not reduce or not significantly reduce the performance of castable at the same time.
Q:What's the fire resistance test method of doors and roller shutters?
Fire resistance test method of doors and roller shutters: This standard specifies the fire resistance test method for roller shutter doors under standard fire conditions. The method is used to test the fire resistance of the ventilating duct when bearing the external fire (A duct) and internal fire (B duct). Fire resistance test of vertical ducts may be conducted referring to this standard. 1.Test specimen1.1 The test specimen is obtained by cutting from any part of the qualified metal tube unless otherwise relevant standard or mutual agreement specifies the cutting position of the metal tube. 1.2 Length of the specimen: L≈2.5D+50mm (D: outer diameter of the metal tube). The cut surface of the specimen must be perpendicular to the axis of the metal , and the seamed edge of the cut should be round off. Test method GB243-82 of metal tube necking 2. Test procedures 2.1 In the test, punch or press the metal tube into the tapered conical seat (see Figure) with a hammer or press machine, and make it uniformly diminished to the regulated shrinkage X which is calculated according to the following formula: Test method GB243-822 for metallic pipe necking: The inner wall of the seat cover used in the test should be polished, and has certain hardness and is coated with lubricating oil. Its conicity is 1:10, 1:5 or others in accordance with relevant standard provisions. If there is no provision, then adopt the conicity of 1:10. This standard is not suitable for: a) The pipeline whose fire resistance depends on the fire resistance of the ceiling; b) The pipeline with access door, unless otherwise the access door is included into the pipeline and tested together; c) The pipeline with two or three sides; d) Fume exhaust pipes;
Q:Is the linear change on reheating the same as heating permanent linear change of refractory material?
“+”represents expansion. the afterexpansion and aftercontraction after cooled to be at room temperature. The change may significantly damage the masonry of thermal kiln. There are regulations on the linear change on reheating of common refractory material in the national standard. Some physical chemical changes may continue. It is defined as the change from being heated to the specified temperature of refractory material sample. Heat preserving for a while till afte cooling to be at room temperature, then the residual will expand or contract in its length, heat preservation for a while, organization vitrification, the irreversible changes of its length refers to heating the firing refractory to be at high temperature, so as to make the volume of refractory materials expand or contract, due to the influence of uneven temperature or lack of time, otherwise it will cause the deformation of the refractory ball and make this indicator within standard even reach smaller value, so firing control must be strengthened in product production. But it is should not be too high. For refractory materials with same chemical composition, the linear change on reheating is produced in the heating process. Properly increasing sintering temperature and prolonging the holding time is an effective process measures, make its firing inadequate. When subjected to high temperature, it can reduce the thermal shock resistance. Minus sign "-" represents contraction. The permanent line rate refers to heating the fire refractory ball to the specified temperature. Linear change on reheating, also known as residual linear change, is an important indicator to assess the quality of refractory in the long time use. To control the permanent line rate within the standard or reach the minimum value.
Q:Could you tell me the fire-resisting time of class B fire proof door?
Could you tell me the fire-resisting time of class B fire proof door?
Q:What kind of refractory decorative board has good quality?
Formica, Grignard, Wilsonart, Yami Home, Germany Board and Priscilla Board are all good choice. They are the high-end brands in fireproof panel. Hope it is helpful to you.
Q:What is special refractories?
Long nozzle, slidding plate, tapping hole, stopper rods, and products that steel mills use
Q:What are the materials of class A fire resistant window?
Fixed class A fire resistant window should be made up of steel frame, steel casement, and fireproof glass. Fire windows, made up of steel frame, steel casement, and fireproof glass, refers to window that isolate and stop the fire from spreading. Fire window is named according to the main materials of the frame and casement. Window frame is made up of steel and casement wood, vise versa. I hope it is useful.

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