middle chrome cast steel grinding ball

a.good resistence of steel grinding ball b.high hardness & low breakage c.ferrochromium material d.HRC:45min c.high impact

middle chrome cast steel grinding ball

1.Features:

good wear resistencehigh hardness & low breakageferrochromium material

HRC:45min

ISO9001: 2008

2.applied

mining(copper,gold,silver ,coal ...)

cement plant

power station

chemical industries

3.Our main products

High& low chrome cast grinding ballsforged ball

high mangnanses steel plate

high chrome mild liner plate

high/low chrome alloyed casting grinding bar

ring flange

production line

4.HardnessHigh Cr  Surface HRC 58-66

Low Cr  Surface HRC 45-55

 5.Diameter 8mm-150mm

name	designation	HRC	AK(J/cm2)	microstracture	Time of falling balls
Populor grade	ZQRC10	58-64	≥2.5	M+C	≥10000

Chemical composition

C

Si

Mn

Cr

P

S

Mo

Cu

Ni

2.0-3.5

0.3-1.2

0.3-1.5

2.0-10

≤0.15

≤0.15

0-1.0

0-0.8

----

Hardness(HRC);≥45

Ak(J/cm2):≥1.6

Microstructure:P+C

Times of falling balls ≥8000

P-pearlite

C-Carbide

Specification

15mm

20mm

25mm

30mm

40mm

50mm

60mm

70mm

80mm

90mm

100mm

110mm

120mm

130mm

140mm

150mm

6.packing

drum (850~920Kg Per Drum)

ton bag(one ton)

middle chrome cast steel grinding ball