98% SiC purity black silicon carbide | RunLong Enterprise (Asia) Co.,Limited

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
▼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.

▼Chemical Analysis & Physical Properties

Purpose	Specification		Chemical Composition (%)			Magnetic material content (%)max
Abrasives grade			SIC min	F.C max	Fe2O3 max
	F	12-80	98	0.20	0.6	0.0023
		90-150	97	0.30	0.8	0.0021
		180-220	96.5	0.30	1.2	0.0018
		240-1200	96	0.35	1.35	—
Refractory grade	Section Sand	0-1mm 1-3mm 3-5mm 5-8mm	97	0.35	1.35	—
	Fine Powder	-180mesh -200mesh -240mesh -320mesh	97	0.35	1.35	—
color			Black
Hardness(mohs)			9.2
Micro hardness(kg/mm2)			2940-3320
Melting point(℃)			2600
Maximum service temperature(℃)			1900
True density(g/cm3)			3.20-3.25
Bulk density(g/cm3)			≥1.38
High thermal conductivity(W/m-K)			100
Linear expansion coefficient (at 900℃ α·10-6K-1)			4.4

All data based upon Runlong Enterprise standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.

Good quality 98.5% purity black SiC silicon carbide for making grinding wheels with unit price [USD1000~1350/Ton FOB Tianjin] from China SiC manufacturer.

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

Packing:
Jumbo Bag of 1 Ton, 1.2 Tons or 1.3 Tons
25kg Woven Plastic Bag, 40 Bags in a jumbo Bag
25kg Woven Plastic Bags, 40 Bags on a Wood Pallet
25kg Paper Bag, 40 Bags on a Wood Pallet

Other package also could supply as request.

▼Our Advantages:

a. Assure the high quality of products.
b. Equipped full line of test method. The laboratory is certified by government Inspection Bureau, that assures its quality stability.
c. All products will be supplied according to customers different requirements.
d. One-stop service
e. A grade products with high purity
f. Professional abrasives manufacturer since 1999
g. Production capacity:1000-1500 metric ton/month
▼Payment:
1).Our first choice is T/T. For a large order 40% T/T in advance is earnest money, the rest to be paid in 7-10 days after getting B/L copy. For a small order,100% T/T in advance.
2).Second choice is L/C. We can accept irrevocable L/C at sight. For a large order 40%T/T, 60%L/C. We couldn’t accept L/C for a small order. The best way of payment we advise is T/T, because L/C is very complicated and a lot of extra fee to give the bank.
3).The others: West Union, Paypal.
▼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.
▼Factory Visit:
1).Welcome any customer to visit our factory directly
2).If customer have any scheduling in China, please let us know. We would like to help you book the hotel and pick up you from airport or railway station.