Brand: HAIXU ABRASIVES
Model: F230-F1200
Price: USD 1750 / Ton
Min. Order: 1 Ton
Black polishing powder
Black Silicon carbide lapping powder
Black Silicon carbide powder is acid pickled an 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.

Properties:
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.

Applications:
Ceramic products like silicon carbide ceramic seal.
Lapping, polishing.
Insulation
Wire sawing
Cutting material such as stone, silicon wafers.
Coated abrasive tools such as sanding paper, sanding wheel, fiber disc, polishing wheel, non-woven polishing wheel
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.


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/ ℃
Themal Conductivity 71-130 W/MK
AVAILABLE SIZES
P-Grit Powder P40 P50 P60 P80 P100 P120 P150 P180 P220 P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500 P3000 P4000 P5000
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#