Grinding Cast/ Forge Media

Balls in different qualities of materials, sold in kilos, they are useful for applications where precision is not important. The big variety of manufactured materials allows to satisfy all inquiries and needs.

Applications
Grinding of different compounds (concrete, food, etc.), ball mill, tumble and vibro finishing, polishing, shot peening, filtering systems. They are often used as filler or cover elements in electrical, idraulic or thermal applications.
Chemical composition
Type
%C
%Si
%Mn
%P
%S
%Cr
%Ni
%N
%Mo
AISI 52100
0.95-1.10
0.35 max
0.20-0.50
0.025 max
0.025 max
1.30-1.60
-
-
-
AISI 1010/1015
0.08-0.18
0.10-0.35
0.30-0.60
0.040 max
0.050 max
-
-
-
-
AISI 1085
0.80-0.93
0.10-0.35
0.70-1.00
0.040 max
0.050 max
-
-
-
-
AISI 304/304L
0.080 max
0.75 max
2.00 max
0.045 max
0.030 max
18.00-20.00
8.00-10.50
0.100 max
-
AISI 316/316L
0.080 max
1.00 max
2.00 max
0.045 max
0.030 max
16.00-18.00
10.00-14.00
-
2.00-3.00
AISI 420(A-B-C)
0.16-0.50
1.00 max
1.50 max
0.040 max
0.030 max
12.00-14.50
-
-
-
AISI 440C
0.95-1.20
1.00 max
1.00 max
0.040 max
0.030 max
16.00-18.00
-
-
0.75 max
Chemical composition
Type
%Si
%Fe
%Mn
%Cr
%Cu
%Ti
%Al
%V
%Mg
%Zn
Aluminium serie 1
0.25 max
0.40 max
0.05 max
0.10 max
0.20 max
0.05 max
99.00 min
0.05 max
0.05 max
0.10 max
Chemical composition
Type
%WC
%Co
-
-
-
-
-
-
-
TCK 20/TCK 30
90.00-95.00
5.00-10.00
-
-
-
-
-
-
-
Chemical composition
Type
%Al2O3
%SiO2
%ZrO2
%Y2O3
%Si3N4
-
-
-
-
Al2O3 ceramics
60.00-95.00
3.00-38.00
-
-
-
-
-
-
-
ZrO2 ceramics
-
-
94.00-96.00
4.00-6.00
-
-
-
-
-
Si3N4 ceramics
-
-
-
-
90.00-95.00
-
-
-
-
Chemical composition
Type
%SiO2
%Na2O
%CaO
%MgO
%Al2O3
%Li2O
%K2O
%TiO2
%Fe2O3
%PbO
%B2O3
%BaO
Soda lime glass
63.00-81.00
9.00-15.00
7.00-14.00
6.00 max
2.00 max
2.00 max
1.50 max
0.80 max
0.80 max
0.010 max
-
-
Borosilicate glass
65.00-85.00
3.00-9.00
2.50 max
-
1.00-5.00
-
2.00 max
-
-
-
8.00-15.00
1.00 max
Technical data / Range
Type
Diameters (min/max) [mm]
Precision grade
Tolerances [mm]
Density [g/cm3]
Hardness
U.o.M.
Ultimate compressive strength [MPa]
Service temperatures (min/max) [°C]
AISI 52100
0.500 - 76.200
1000
±0.050
7.80
60 - 66
[HRC]
2500 - 2600
-60 / 150
AISI 1010/1015
0.500 - 50.000
1000/2000
±0.050
7.82
60 - 66
[HRC]
1500 - 2000
-40 / 500
AISI 1085
0.500 - 50.000
1000/2000
±0.050
7.85
59 - 66
[HRC]
2000 - 2500
-40 / 500
AISI 304/304L
0.500 - 50.000
1000/2000
±0.050
7.95
25 - 39
[HRC]
150 - 300
-196 / 700
AISI 316/316L
0.500 - 50.000
1000/2000
±0.050
7.95
25 - 39
[HRC]
150 - 300
-196 / 600
AISI 420(A-B-C)
0.500 - 50.000
1000/2000
±0.050
7.72
48 - 60
[HRC]
1100 - 1400
0 / 400
AISI 440C
AISI 440C
1000/2000
±0.050
7.75
57 - 65
[HRC]
1200 - 1500
0 / 400
Aluminium serie 1
1.000 - 50.000
1000
±0.100
2.71
20 - 30
[HV0.5]
100 - 250
-196 / 200
TCK 20/TCK 30
0.500 - 50.000
1000
±0.050
14.85
87.5 - 91.5
[HRA]
5400 - 5800
-196 / 500
Al2O3 ceramics
1.000 - 60.000
1000/2000
±0.075/±0.150
3.70
1400 - 2000
[HV]
2100 - 2600
-100 / 1600
ZrO2 ceramics
0.900 - 50.000
1000/2000
±0.075/±0.150
6.00
87 - 91
[HRA]
1750 - 2500
0 / 1350
Si3N4 ceramics
1.000 - 50.000
1000/2000
±0.075/±0.150
3.26
1400 - 1600
[HV]
2300 - 4000
0 / 1200
Soda lime glass
1.000 - 50.000
1000/2000
±0.200
2.50
465 - 585
[Knoop]
900 - 1100
0 / 200
Borosilicate glass
1.000 - 50.000
1000/2000
±0.200
2.23
420 - 520
[Knoop]
1900 - 2100
0 / 200
Notes
Property
Description
Other materials
On specifical request, we can supply more valuable grinding balls in any material type.
Shot peening balls
For this particular application of grinding balls please check the data sheet of AISI 1022 material (Carbon Steels family).