|
It is used
to grind hard and brittle metal, non-ferrous metals like copper,
brass, aluminum and magnesium, and non-metallic materials such as
gem, optical glass, ceramics, etc. |
Grain Types and
Grades |
|
Usage
|
For vitrified
wheels and belts |
For organic wheels
|
For sheets
|
|
Type & Grade
|
GC |
GC-B
|
GC-P
|
|
|
|
|
Chemical Composition(GB/T 2480-1996)
|
 |
|
Type &
Grade |
Grit
Size |
Chemical composition (%, by
weight) |
|
SiC
|
F.C
|
Fe2O3 |
|
GC
|
F20¡ ~ F90
|
≥99.0 |
≤0.20 |
≤0.20 |
|
F100¡ ~ F150 |
≥98.5 |
≤0.25 |
≤0.50 |
|
F180¡ ~ F220 |
≥97.5 |
≤0.25 |
≤0.70 |
|
W63¡ ~ W20
|
≥97.0 |
≤0.30 |
≤0.70 |
|
W14¡ ~ W10
|
≥95.5 |
≤0.40 |
≤0.70 |
|
W7¡ ~ W5
|
≥94.0 |
≤0.50 |
≤0.70 |
|
P12¡ ~ P100 |
≥99.0 |
≤0.20 |
≤0.20 |
|
P120¡ ~ P150 |
≥98.5 |
≤0.25 |
≤0.50 |
|
P180¡ ~ P220 |
≥97.5 |
≤0.25 |
≤0.70 |
|
P240¡ ~ P1000 |
≥97.0 |
≤0.30 |
≤0.70 |
|
P1200
|
≥95.5 |
≤0.40 |
≤0.70 |
|
GC-B
|
F20¡ ~ F90
|
≥98.5 |
≤0.25 |
≤0.25 |
|
F100¡ ~ F150 |
≥98.0 |
≤0.30 |
≤0.55 |
|
F180¡ ~ F220 |
≥97.0 |
≤0.30 |
≤0.80 |
|
W63¡ ~ W20
|
≥96.5 |
≤0.35 |
≤0.80 |
|
W14¡ ~ W10
|
≥94.5 |
≤0.45 |
≤0.80 |
|
W7¡ ~ W5
|
≥93.0 |
≤0.60 |
≤0.80 |
|
GC-P
|
P12¡ ~ P100 |
≥98.5 |
≤0.25 |
≤0.25 |
|
P120¡ ~ P150 |
≥98.0 |
≤0.30 |
≤0.55 |
|
P180¡ ~ P220 |
≥97.0 |
≤0.30 |
≤0.80 |
|
P240¡ ~ P1000 |
≥96.5 |
≤0.35 |
≤0.80 |
|
P1200
|
≥94.5 |
≤0.45 |
≤0.80 |
|
Note: Special requirement on chemical
composition can be satisfied through discussion |
|
