Low Chromium Grinding steel Ball

Low Chromium Grinding Ball /cast Steel Ball for Mining/Cement description:

It  is widely used in powder preparation and ultra-fine deep processing in cement building material, metal mining, coal slurry, thermal power,

chemical engineering, ceramic coating, light paper making industry, magnetic material,AAC Plant - Autoclaved Aerated Concrete Plant ,

Calcium silicate fiber- cement boards , as well steel pelletizing plant  .

Item

Grade

Chemical Composition(%)

C

Si

Mn

Cr

P

S

Mo

Al

（Cu、 Ni、Nb、 Ti、Zr V、B、Mg） Minor

High Chrome Grinding ball

ZQCrIO

1.8-3.2

0.3-1.2

0.3-1.0

10-11

≤ 0.10

≤ 0.06

Minor

Minor

Super high chrome Grinding ball

ZQCr12

2.0-3.0

0.5-1.0

0.3-1.0

11-13

≤0.08

≤0.06

Minor

Minor

ZQCr15

2.0-3.0

0.5-0.9

0.3-1.0

14-16

≤0.08

≤0.06

Minor

Minor

ZQCr17

2.0-3.0

0.5-0.9

0.3-1.0

16-18

≤0.08

≤0.06

Minor

Minor

ZQCr20

2.0-3.0

0.5-0.9

0.3-1.0

19-21

≤0.08

≤0.06

Minor

Minor

Properties And Micro-structure

Rockwell Hardness (HRC)

Impact test AK( J/cm2)

Micro-structure

Ball-Drop Impact Test (Times)

Item

Grade

High Chrome

ZQCr10

58-64

≥3.0

M+C

≥10000

M -- Martensite C Carbide C ----Carbide

Diameter ( mm)

Ø30

Ø40

Ø50

Ø60

Ø70

Ø90

Ø80

Ø90

Ø100

Ø110

Ø120

Ø130

Here are distinguished  detailes of our grinding balls as follows

1. High hardness: From 58 to 68 Breakage rate ≤ 1%; Drop impact times :≥ 10000

2. Chromium percentage: From 10 to 27%

Super High Chrome: 15-26% ,High Chrome: Cr:10-13% ,Medium Chrome: Cr:3-6% ,Low Chrome: Cr:1.0-3.0%

3. Grinding ball diameters from 8 to 150mm

4. Characteristics: High hardness, good wear resistant, low breakage, no deformation.

5. Application: Mining, cement, metallurgy, power plants, chemical and magnets industries

6. Packaging Methods:Heavy-duty Jumbo bag ,steel drum ,pelleted steel drums

7.Loading capacity of steel drum Packaging

Steel drum size(cm): 89 x 58 (Volume: 900kgs N.G. avaliable)

Steel drum palleted on single wooden case

Pallet dimension (cm): 118 x58x12

Drum:diameter17-25mm 1000kg/drum

diameter30-50mm 950kg/drum

diameter60-70mm 900kg/drum

diameter80-90mm 850kg/drum

diameter100-1 50mm 800kg/drum

8.Loading capacity of 20’ shipping container :25-27tons/20’CNTS

9.Loading capacity of  Jumbo Packaging Bags: Dia17mm-Dia150mm, 1000Kgs/ Bag (GW: 1002Kgs)