Silicon carbide GW+ (green)

Silicon Carbide is a hard material with sharp edges. It is produced from sands and coal in electric furnaces at 2400° C. The high porosity is achieved by adding wood shavings while heating. Large lumps of material taken out of the furnace are crushed, milled and classified.

Two techniques for grading are used:

  • Grading by means of vibratory sifter = MACRO GRAIN
  • Grading by means of sedimentation = MICRO GRAIN

A follow-up chemical treatment grants the product's high purity.

SILICON CARBIDE GW plus is particularly used for lapping ceramics, for grinding in the glass industry and optical production as well as in granite processing.

Types and Grains available

SILICON CARBIDE is available in 2 different grades: black and green. Our SILICON CARBIDE is produced in accordance with F.E.P.A. standards (Féderation Européenne des Fabricants de Produits Abrasifs). Strict quality control of each batch produced certifies the conformity with those standards. The following grains are available:

Mikro FEPA
42-2:2006		 50% Value Tolerance 94% Value 3% Value
F 230 53.0 ± 3.0 34.0 82
F 240 44.5 ± 2.0 28 70
F 280 36.5 ± 1.5 22 59
F 320 29.2 ± 1.5 16.5 49
F 360 22.8 ± 1.5 12 40
F 400 17.3 ± 1.5 8 32
F 500 12.8 ± 1.0 5 25
F 600 9.3 ± 1.0 3 19
F 800 6.5 ± 1.0 2 14
F 1000 4.5 ± 0.8 1 10
F 1200 3.0 ± 0.5 1 7

Chemical Structure

Type: SILICON CARBIDE
Colour: green
Hardness: 2.450 (Knoop100)
Specific gravity: 3,20 g / ccm
Crystal structure aSiC in the hexagonal and rhombohedral classes of the hexagonal system
Shape Blocky, with sharp edges

SIC 99,00 %
Si O2 0,34 %
Freies Si 0,27 %
Fe 0,05 %
Al 0,04 %
C 0,30 %