| fibre glass reinforced resinoid thin wheels,depressed
center wheels and flexible grinding wheels. |
| Abrasive Designation |
Symbol |
Main Character |
Suited Usage |
Brown
fused alumina |
A |
Greater hardness
Higher toughness |
Suited for grinding high strength metal such as carbon steel,annealed malleable
iron and hard bronze etc. |
White
fused alumina |
WA |
As compared with brown fused alumina,the toughness of WA is alightly lower
and the hardness is higher.Good grinding activity.Lower grinding
heat |
Suited for grinding hardened steels,alloy steels,stainless and high carbon
steels. |
Single crystal
fused alumina |
SA |
High toughness
Cubic single crystal |
Suited for grinding higher toughness and harder alloy steel such as vanadium,high
speed steel etc. |
Zirconia
fused alumina |
ZA |
High toughness
High durability |
Suited for grinding stainless steel,heat-resist steels etc. |
Black
silicon carbide |
C |
higher hardness than alumina,brittle and sharp.Has a good heat and electrical
conductivity |
Suited for grinding iron,brass,rubber,
plastic,wood,stone and concrete etc. |
Green
silicon carbide |
GC |
higher hardness brittle and sharp higher purity than C
good heat and electrical conductivity |
Suited for grinding hard and brittle materials such as cemented carbides,glass,stone,ceramic
etc. |
