Black SiC carborundum powder

 

Description:

Black Silicon carbide powder is acid pickled water separated powder with an extreme hardness after producing at high temperature in an electric resistance type furnace with quarts sand and petroleum coke.

 

Black Silicon Carbide is produced by a process involving the electrochemical reaction of silica(SiO2) – in the form of quartz mixed with Carbon(C) in the form of raw petroleum coke. The stoichiometric mixture is reacted in an electrical resistance furnace at a temperature up to 2500℃ to yield high-quality crystals. The process is large furnace technology with a graphite electrode in the furnace center.  The large crystals are then segregated, crushed, cleaned of magnetic impurities in high-intensity magnetic separators and classified into narrow size fractions to suit the end-use. Dedicated lines produce products for different applications. The micro powder form silicon carbide from HAIXU Abrasives is with good size distribution, high purity, and low impurities.

 

 

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High hardness, retaining hardness and strength at high temperature.

High wear resistance.

Excellent thermal shock resistance with high thermal conductivity and low linear thermal expansion.

Good ability to withstand the strongest alkalis and acids.

 

TYPICAL CHEMICAL ANALYSIS
SiC	≥98%
SiO2	≤1%
H2O3	≤0.5%
Fe2O3	≤0.3%
F.C	≤0.3%
Magnetic content	≤0.02%
TYPICAL PHYSICAL PROPERTIES
Hardness:	Mohs:9.2
Melting Point:	dissociated at about 2300 °C
Maximum service temperature:	1900℃
Specific Gravity:	3.2-3.45 g/cm3
Bulk density(LPD):	1.2-1.6 g/cm3(depends on the size)
Color:	Black
Particle shape:	Hexagonal
Modulus of Elasticity	58-65x106 psi
Coefficient of Thermal Expansion	3.9-4.5 x10-6/ ℃
Thermal Conductivity	71-130 W/MK
AVAILABLE SIZES
FEPA	F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000
JIS	240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000#8000#

D50 Sizes of black silicon carbide power:

P-microgrits sizes bonded
Grit designation	Mean grain size ds50-value in μm
P240	58.2 ± 2.0
P280	52.2 ± 2.0
P320	46.2 ± 1.5
P360	40.5 ± 1.5
P400	35.0 ± 1.5
P500	30.2 ± 1.5
P600	25.8 ± 1.0
P800	21.8 ± 1.0
P1000	18.3 ± 1.0
P1200	15.3 ± 1.0
P1500	12.6 ± 1.0
P2000	10.3 ± 0.8
P2500	8.4 ± 0.5
P3000	5 .5± 0.5
P4000	4 ± 0.5
P5000	3 ± 0.4

• Ceramic products like silicon carbide ceramic seal.
• Lapping, polishing.
• Insulation
• Wire sawing
• Cutting material such as stone, silicon wafers.
• Raw material of Knife Grinder, Whetstone, oilstone, grinding stone, honing, sharpening sticks, etc.
• Material of Polishing wax, polishing fluid, grinding powder, grinding fluid and so on
• Wear-resisting floor and non-slip coating such as additive for epoxy resin floors.
• Brake linings
• Semiconductor industry.

Ø We are a manufacturer, which can control the cost easier than trade company also can give you answer more quickly.

Ø As a manufacturer, we know much in technique and can give you more support in technique problem

Ø  Professional and experienced service team, specialized in abrasive production, more than 10 years.

Ø Our products are complete in specifications with various of sizes

Ø We enjoy a good reputation in the customers in domestic and overseas markets.

Ø Large production capacity, short lead time of products.

Ø 24*7 online service.

Contact：

WhatsApp/Mobile：0086 13526538098

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