Open here for our page navigation
SILICON CARBIDE POWDERS
(Green Abrasive, Green Powder nd Black Powder)
GREEN SILICON CARBIDE
for abrasive applications
DESCRIPTION: Green Silicon Carbide (SiC) is an extremely hard man made mineral that possesses high thermal conductivity and high strength at elevated temperatures. At 1000oC, SiC is 7.5 times stronger that Alumina. Silicon Carbide has a modulus of elasticity of 410 GPa, with no decrease in strength up to 1600oC, and it does not melt at normal pressures but instead dissociates at 2700oC.
APPLICATIONS: Green Silicon Carbide is manufactured by water classification at our USA facility. All chemistry and sizing is controlled to meet exact customer specifications. All Silicon Carbide we manufacture meets or exceeds ANSI or FEPA standards for product quality.
Silicon Carbide is extremely pure. It can be manufactured into complex bonded shapes or used as a loose abrasive. Applications and uses include vitrified and resinoid grinding wheels, honing stones, blasting grain/powder, compounds, lapping, polishing and many more.
TYPICAL CHEMICAL ANALYSIS:
SiC 99.0%
SiO2 0.4%
Si 0.25%
Fe 0.05%
C 0.2%
Properties:
Particle Shape Blocky, Sharp
Color Green
Chemistry Acid (slight)
Density 3.2 gm/cm3
Koops Hardness 2600 kg/cm2
Mohs Hardness 9.4
Decomposition Point 2700oC
Reacts With acids: minor surface action with HF
Reacts with alkalis: reacts at high temperature with alkalis and iron oxide
Oxidation – Reduction: Starts to oxidize at 800oC, no reduction
GRIT SIZES: FEPA F 320, 360, 400, 500, 600, 800, 1000, 1200, 1500, 2.5 microns, 0.7 microns
REGULAR GREEN SILICON CARBIDE
DESCRIPTION: A premium grade medium density, high intensity magnetically treated green silicon carbide grain.
PROPERTIES: Alpha Silicon Carbide, which crystallizes as modifications of the hexagonal system.
TYPICAL CHEMICAL ANALYSIS:
SiC 99.5%
SiO2 0.02%
Si 0.03%
Fe 0.004%
C 0.10%
Crystal Form Alpha-SiC (Hexagonal)
Chemistry Acid (slight)
Reacts With acids Minor surface action with HF
Reacts with alkalis Reacts at high temperature with alkalis and iron oxide
Oxidation – Reduction Starts to oxidize at 800oC, no reduction
Density 3.2 gm/cm3
Koops Hardness 2900 kg/cm2
Mohs Hardness 9.4
Color Green
Decomposition Point 2600oC
Maximum Usable Temperature 1540oC
Specific Heat (cal/gmoC) 0.14 (at 0oC), 0.28 (at 500oC), 0.13 (at 100oC)
Thermal Conductivity 210 btu/hr/ft2/in/oF at 400oF
100 btu/hr/ft2/in/oF at 1600oF
PARTICLE SHAPE: Blocky Sharp.
GRIT SIZES: FEPA F 320, 360, 400, 500, 600, 800, 1000, 1200, 1500, 2.5 microns, 0.7 microns
APPLICATIONS: General purpose polishing, lapping, blasting, compounds, vitrified and resinoid wheels, primarily for grinding and finishing non ferrous and non metallic materials. Granite polishing bricks, sawing silicon, quartz, germanium wafer, Refractories and Composites.
Silicon Carbide – Black
Grains and Powders
Silicon Carbide-Black is ideally used for a wide range of applications. These include vitrified and resinoid grinding wheels, friction, blasting, compounds, lapping, polishing, non-slip, wire sawing silicon and quartz and many more uses.
Bayville’s Silicon Carbide-Black powder contains some free silicon (Si) and carbon (C) and is not as pure as green SiC. Black Silicon Carbide is an extremely hard (Mohs 9.1 / Knoop 2550) man-made mineral that possesses high thermal conductivity and high strength at elevated temperatures. At 1000oC Black Silicon Carbide is 7.5 times stronger than Alumina. Silicon Carbide-Black has a modulus of elasticity of 410 GPa, with no decrease in strength up to 1600oC. It does not melt at normal pressures but instead dissociates at 2600oC.
Properties:
Formula SiC
CAS# 409-21-2
Color Black
Particle Shape Blocky or Angular with sharp edges
Hardness Mohs: 9.1, Knoop: 2550
Melting Point Sublimes at 2600oC (4712oF)
Typical Analysis:
SiC 97.7%
SiO2 0.7%
Si 0.8%
Fe 0.2%
Al 0.3%
C 0.3%
Grit Sizes Available: 8 grit – 240 grit (P12 – P220, FEPA), F280 grit – F1200 grit (P240 – P3000, FEPA).
