Species

Code No.

color

features

selection

brown fused alumina

A

Tan

high rigidity, strong flexibility, low price, canbe used widely

suitable for normal steel grinding, grinding, roughgrinding, higher anti-pulls Intensity metal grinding as well,i.e.

White aluminum oxide

WA

White

lower rigidity weaker flexibility than A.

Suitable for the work pieces made of materials Chilled steel,High-speed steel, High-carbon steel,

Chromium corundum

PA

Pink,rose-red

 Sharp cutting, good edges holdout,durable

Suitable for form grinding, knives, Measuring instrument

Green silicon carbide

GC

green

only no harder than Boron carbide

Suitable for grinding Hard alloy, Optical glass, vitrify andother hard friable materials.

Black silicon carbide

C

black

 Harder than corundum, crisper, less flexibility.

Suitable for process weak Tensile strength metallicand Nonmetallic material, i.e.