Metallurgical Grade Black Silicon Carbide

Black silicon carbide also called black carborundum. This product, chemical formula of which is SiC, is obtained from the synthesis of high purity quarts sand and petroleum coke as basic raw materials under high temperature in an electric resistance furnace. It contains 85-99% of SiC and the admixtures of Fe2O3, Al2O3, CaO, SiO2, MnO2.

It is characterized by great hardness (9,2 in Mohs scale) and micro hardness (circa 2940- 3320 kG/mm2). Its specific gravity (density) of hexagonal type, which is affected by the degree of impurity, comes to 3,20+/-0,05 g/cm3. Bulk density equals 1,20 – 1,60g/cm3. Good thermal conductivity, low thermal expansion (decreasing with temperature growth) and high strength are another characteristics that ensure a wide use of the material. Electrically it is a semiconductor. Compared with green silicon carbide, the purity, hardness and brittleness of black SiC are lower.

Metallurgical Grade Black Silicon Carbide Basic Indicators:

Molecular FormulaSiC
AppearanceBlack Powder
CAS No.409-21-2
HS Code28492000


Metallurgical Grade Black Silicon Carbide Chemical Composition (%)

ApplicationGradeGrit SizeSIC  %F.C (Carbon)  %C(Carbon)% S (Sulfur)  % moisture mass %
MetallurgicalMG0-20mm88-923-630-330.1-0.21-3

Other grade 75%, 85%, 90% purity black silicon carbide also could be supplied.

Usage:

● As the abrasive: used for abrasive, such as grinding wheels, whetstone, grinding wheel, sand tiles etc.

● As the metallurgical deoxidizer and high temperature material.

● High purity single crystal, used to manufacture semiconductors, manufacture of silicon carbide fibers.

● Silicon carbide is very hard, with excellent thermal conductivity, as a semiconductor and high temperature resistant to oxidation.

Four main application areas of silicon carbide: functional ceramics, advanced refractory, abrasives and metallurgical materials.

Packing and storage                                                                                       

Packing: Double coated plastic woven / paper bag, net weight 25kg.

Big bag packing, net weight 1000kg / 1250kg per clients’ request.

Storage: Dry, ventilated, moisture proof.

Delivery

1. The sample will be send by International expresses FEDEX/DHL/UPS/TNT.

2. Full container Load(FCL): By vessel Or International Railway Transportation

3. Less Than Container Load(LCL): By vessel or By air

Payment

1. Payment: T/T, Western Union, LC, Paypal.

2. MOQ: Usually 1Tons

3. Quality Warranty: 1 years

After Sales Service:

1).We are very glad that customer give us some suggestion for price and products.

2).If any question, please let us know it by E-mail or Telephone at the first time. We can deal with them for you in time.

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