Best Quality Promotional Cast Grinding Steel Ball 80Mm High Hardness Hrc60 Cast Grinding Steel Ball

Material

iron,chrome

Size

20mm~120mm

accuracy Grade

Cr5,Cr8,Cr10...Cr20

Hardness

25~58 HRC

Corrosion Resistance

yes

Surface

Zero defect, bright

Sample

by free

Quality  standard

International standard

Packaging

Inner plastic bag, cartons/boxes, wooden pallets, container.

Delivery Date

About 10- 50 days depends on the quantity

General Mechanical Property

Materials

Hardness

Impact value

Wear in Cement Mills(g/mt)

Application Field

High Cr Cast Iron

≥HRc60

≥4J

25-60

The dry-grinding process in cement works, power plants and wet-grinding process in mine

Low Cr Cast Iron

≥HRc46

≥3J

≤130

The dry-grinding process in cement works,power plants and wet-grinding process in mines

Composition(%)

C

Si

Mn

Cr

P

S

Hardness(HRC)

Wear Rate in Gold Mine

Low Cr Cast Balls

2.0~3.5

≤1.5

≤1.0

1.5~2.5

≤0.07

≤0.07

46~55

About 1000g/MT

Mid Cr Cast Balls

2.0~3.5

≤1.5

≤1.0

4.0~6.0

≤1.0

≤1.0

≥50

About 870g/MT

Cr10 Cast Balls

2.0~3.3

≤1.2

≤1.0

10~12

≤0.05

≤0.05

≥55

≤870g/MT

Cr14 Cast Balls

2.0~3.3

≤1.2

≤1.0

14~16

≤0.05

≤0.05

≥58

Cr18 Cast Balls

2.0~3.3

≤1.2

≤1.0

18~20

≤0.05

≤0.05

≥60

≤760g/MT

Cr20 Cast Balls

2.0~3.3

≤1.2

≤1.0

20~26

≤0.05

≤0.05

≥60

≤750g/MT