Product Details

Specifications

grinding steel balls:
Hardness:above 60HRC
Izod impact strength:12-35
Beakage: Less than 0.5%

1.Forged Grinding Steel Media Ball:

1.High hardness low breakage
2.Low abrasion wear
3.No deformation
4.Good wear resistant Dia:20-150mm

5.Hardness:50-65HRC

6.Good wear resistance

7.No deformation, no out of roundness

8.Low breakage and abrasion wear

2.Chemcial Elements

Name	C	Mn	Si	Cr	S	P
HY-65MN	0.60-0.70	0.90-1.20	0.17-0.37	0.25 max	0.035max	0.035max
HY-75MnCr	0.70-0.85	0.7-0.8	0.17-0.37	0.7-0.9	0.03 max	0.03 max
HY-40MNCr	0.45-0.50	0.7-1.2	0.17-0.37	0.9-1.1	0.03 max	0.03 max

3. Specification and Hardness of Grinding Media Ball

Nominal diameter(mm)

Diameteical talerance(mm)

Weight of single forging ball in average(g)

Number of piece of one ton forging ball in average

Surface hardness(HRC)

iMPACT TIUGHNESS(j/cm2)

dia20

dia25

dia30

dia40

dia50

-1

110

263

513

31250

15625

9090

3802

1949

50~65

>=12

dia60

dia70

dia80

dia90

dia100

-2

888

1410

2104

2996

4110

1126

709

475

333

243

50~65

>=12

dia110

dia120

dia130

-2

5457

7102

9030

182

140

110

45~60

>=12

dia140

dia150

-3

11278

13871

45~60

>=12