cast chrome grinding ball

Chrome content

                   Chemical composition(%)

C

Si

Mn

Cr

Mo

Ni

P

S

Cr10

1.8--3.3

1.2max

2.5max

10--15

low1.5

a little

0.08max

0.08max

Cr1--3

1.8-3.5

1.4max

1.2max

1--3

low1.0

a little

0.08max

0.08max

Cr 3--7

2.0-3.2

1.2max

0.5-1.5

3--9

low1.0

a little

0.08max

0.08max

Cr high 10

           Varies according to the requirements

               Mechanical Properties

Surface

AK(J/cm²)

Microstructure

Wear rate

Breakage rate

Times of falling

Cr10 min

58-68HRC

2.5max

M+C

25gr/t.m

low1%

108000min

Cr low 10

45-57HRC

1.6max

P+C

80gr/t.m

low1%

10000min

                     C-Carbide   P-Pearite   M-Martensite