Tag Archives: Silicon Carbide

Abrasive Grade Silicon Carbide – Uses Of

Silicon Carbide Grit

Silicon Carbide Grit & Powder

The main uses for abrasive grade Silicon Carbides (Carborundum) are:

  • anti-slip abrasives
  • sandblasting abrasives
  • bonded abrasives
  • coated abrasives
  • polishing/lapping compounds
  • tumbling media (including lapidary or rock tumbling uses)
  • wire-sawing abrasives
  • sintering
  • filling up ceramic parts

Today, there are many high tech uses for varying grades of Silicon Carbide such as electronics, brake pads, ceramics, LED’s, diodes, transistors, semiconductive research, heating elements, even jewelry.  Gone are the days when Silicon Carbide was known only as an abrasive.

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Silicon Carbide – Interesting Historical Facts

Black Silicon Carbide Abrasive

Silicon Carbide Sandblasting Abrasive

Silicon Carbide (SiC) was the first synthetic abrasive to be produced and also the first to be commercialized.  1891 was the year that silicon carbide production began, and thus revolutionized the abrasive industry as a whole.  Before 1891, almost all abrasives were naturally found such as rocks and minerals.

By 1900 SiC production was at 1,200 metric tons, carrying an estimated value of $263,000.  Mainly used in the lapidary industries, it was a replacement for diamond powder.  At that time, the only other manufactrued abrasive was crushed steel and as a contrast in volume, crushed steel production was only 320 tons, carrying a rather paultry value of ~$50,000.

With exception only given to diamond and garnet, by the year 2000, manufactured abrasives dominated the high end abrasive industries.  Unlike natural abrasives, manufactured abrasives could be tightly controlled, thus ensuring uniform properties like hardness and grit size.  A further benefit was the ability to customize the manufacturing process to meet exact specified needs, based on the end application.  While being more expensive that natural abrasives, their durablity and efficiency made them more cost effective overall.  They are therefore used heavily in the metal finishing, cutting, and polishing fields.

In short, manufactured abrasives are extensively used today in finishing numerous products.

 

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Boron Carbide Blast Nozzles – When To Use One

Short Answer: Use a boron carbide blast nozzle anytime you are using aluminum oxide or silicon carbide as your abrasive blasting media.

When To Use Boron Carbide Blast Nozzles
When To Use Boron Carbide Blast Nozzles

Long Answer:   The three most popular materials used today for blast nozzles are Tungsten Carbide, Boron Carbide, and Silicon Carbide.  Boron Carbide nozzles are the hardest of the three, followed by Silicon Carbide, and then by Tungsten Carbide.  Hardness is necessary to order to withstand the wear and tear that the blast nozzle liner will be exposed to by the abrasive used.

However, the greater the hardness, the more brittle the material.  This is why Boron Carbide nozzles need to be handled with care.  When we ship B4C blast nozzles, we use a lot of packaging material to ensure safe transit.  Never drop, throw, pound, or abuse a boron carbide nozzle or you will destroy it.  (Just because boron carbide is the hardest material you can buy, does not mean it is not brittle.)

 

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Sandblasting Media: Welcome to SandblastingAbrasives.com!

Offering a FULL line of sandblasting media, powders, and blast nozzles.

Silicon Carbide Grits 12 and 30 ANSI

Silicon Carbide Sandblasting Media

Having trouble finding a triple graded, Boron Carbide Sapphire Polishing Powder?  Or a very coarse Brown Fused Aluminum Oxide for anti-skid applications?  We offer the full line of ANSI & FEPA sandblasting media and powders, not just the most popular sizes!

Now offering a full line of Made-In-The-USA Sandblasting Nozzles, in both Boron Carbide and Tunsten Carbide.

If your order is 200 lbs or less, we encourage you to simply order online.  For orders over 200 lbs, please use our Request A Quote form, so we can provide a custom freight quote as well as wholesale pricing.

Most of our abrasives can be ordered online in small quantities, or ordered offline via a wholesale account.

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