Semifriable Alumina

Cumi Sharp

SFC for Coated Abrasives

25 kg / 50 kg bags & 1MT jumbo bags (big-bags)

Custom packing can be offered on request

Colour:

Brown

Melting Point:

2050 °C

Phase:

α-Al₂O₃

Hardness:

2100 kg/mm²@ 100 gm

Shape:

Angular with sharp edges

Applications:

Semi friable F grit is a fast cool cutting grain which is particularly suitable for grinding and cutting tough,

heat-sensitive steels and non-ferrous metals, It is a preferred grain for gear grinding wheels and ID wheels,

Product Features:

Tough grains cut with power

Suits rough grinding jobs

Long life in hard use

Semi friable alumina is brown corundum produced by controlled fusion of special grade calcined alumina with other raw materials in an electric arc furnace, The process parameters ensure a product of consistent quality and intermediate toughness between that of white and brown corundum,

Typical Chemistry, Wt%

Grit Size

P60

Al₂O₃

98.3%

TiO₂

1.58%

Fe₂O₃

0.04%

SiO₂

0.04 %

CaO

0.02 %

Applications

Abrasives

Physical Properties

Grits And Loose Bulk Density, g/cm3

P12

1.87-2.02

P14

1.85-2.00

P16

1.83-1.98

P20

1.80-1.95

P24

1.80-1.88

P30

1.78-1.86

P36

1.79-1.87

P40

1.78-1.86

P50

1.75-1.83

Grit Sizes

Loose Bulk
Density, g/cm³

P12	1.87-2.02
P14	1.85-2.00
P16	1.83-1.98
P20	1.80-1.95
P24	1.80-1.88
P30	1.78-1.86
P36	1.79-1.87
P40	1.78-1.86
P50	1.75-1.83

Grit Sizes

Loose Bulk
Density, g/cm³

P60	1.73-1.81
P80	1.67-1.75
P100	1.63-1.73
P120	1.59-1.67
P150	1.56-1.64
P180	1.54-1.62
P220	1.52-1.58