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OEM Cr15 Forged Steel Grinding Media For Large Mine Mills High Cr cast ball hardness HRC≥60

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Contact name:Vivian Xu

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OEM Cr15 Forged Steel Grinding Media For Large Mine Mills High Cr cast ball hardness HRC≥60

City & Province wuxi jiangsu
Categories Used General Mechanical Components

Product Details

 

OEM Cr15 Forged Steel Grinding Media For Large Mine Mills

 


Quick Details

1. Material:Cr15

2. Hardness: More than HRC60;

 

Forged Steel Grinding Balls For Large Mine Mills

1. Hardness difference from surface to center is less than HRC3.

2. Hardness:More than HRC60.

3. Surface of castings is free from burnt sand & smooth.

4. It is free from hard spot, visible injurious defects such as blow hole,porosity, shrinkage, cracks, cold-shuts. 

 

1. Specification available

 

A. Cast Balls

(1) Diameter (mm): φ140, φ125, φ110, φ100, φ90, φ80, φ70, φ60, φ50, φ40, φ30, φ20, φ17, φ15 

 

 

 B. Cast Cylpebs

(1.2)Diameter (mm): φ35×40, φ30×35, φ25×30, φ20×25, φ18×18, φ16×16, φ15×20, φ14x14,

                     φ12×16, φ12x12, φ10×12, φ10×10, φ8×8

 

 

(2) 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

 

 

 

 

 

 

 

 

 

(3). The Detailed Information about Diameter 60mmCast Balls with Different Cr Content

 

Composition

 (%)

C

Si

Mn

Cr

P

S

Hardness

(HRC)

Wear Rate in Gold Mine

Low Cr Cast Balls

2.0~3.0

0.5~1.5

≤0.50

1.5~2.5

≤0.07

≤0.07

46~55

About 1000g/MT

Mid Cr Cast Balls

2.0~3.5

≤1.0

0.3~1.2

4.0~6.0

≤0.10

≤0.10

≥50

About 870g/MT

Cr12 Cast Balls

2.0~3.0

≤1.2

0.7~2.0

10~12

≤0.06

≤0.06

≥55

≤820g/MT

 

Cr15 Cast Balls

2.0~3.0

≤1.2

0.7~2.0

14~16

≤0.06

≤0.06

≥58

Cr20 Cast Balls

2.0~3.5

≤1.0

0.5~1.5

17~23

≤0.06

≤0.06

≥60

≤760g/MT

 

 

C. Forged Steel Balls

⑴. Diameter (mm): φ150, φ140, φ130, φ120, φ110, φ100, φ90, φ80, φ70, φ60, φ50, φ40

 

 

(2). General Mechanical Property

Composition (%)

C

Si

Mn

Cr

P

S

Type One Material

0.57~0.65

0.17-0.37

0.70-0.80

0.28-0.60

≤0.04

≤0.04

 

 

 

 

Ⅰ. For Type One Material

Size

Surface

Core

Φ40~60mm

HRC50~60

HRC50~60

Φ70~80mm

HRC50~60

HRC50~60

Φ90~100mm

HRC50~60

HRC50~60

Φ110~140mm

HRC50~60

HRC50~60

 

 

 

 

 

 

 

 

 

Ⅱ. For Type Two Material

Composition (%)

C

Si

Mn

Cr

V

P

S

Hardness

Type Two Material

0.7-0.9

0.45-0.75

0.70-1.25

0.11-0.40

0.05-0.12

≤0.04

≤0.04

HRC55~65

 

 

D. Holt-rolled Steel Balls

(1). Diameter (mm): φ150, φ120, φ100, φ90, φ80, φ70, φ60, φ50, φ40, φ30, φ25

 

 

 

(2) General Mechanical Property (Refer to GB8649-88)

Composition(%)

C

Si

Mn

Cr

Mo

Ni

Cu

V

Co

Hardness

Hot-rolled Steel Balls

0.5

~

1.0

0.25

~

1.60

0.4

~

1.2

1.0

0.5

0.5

0.5

0.04

0.09

≥HRC58

 

 

 

 

 

 

2. Size Tolerance

Item

   Specification (mm)

Φ15~Φ50

Φ60~Φ150

Diameter tolerance

+1.5

-1.0

     +2.0

     -1.0

 

 

 

 

 

 

 

 

3. Package

 Packaged by flexible container bags weighing about 1000kg or in iron drums weighing about 850kg. 

In the recent 20 years, our liners have been widely used in large, medium and small ball mills in Chinese power generation, mining, cement, Chemical engineering and metallurgical industries and super fine pulverizing equipments. It is the only recommended liner product in the latest standard of the electric-power industry in China.

 

Technical Parameters

Wuxi Orient Anti-wear Engineering Co., Ltd.

Chemical Composition & Mechanical Property of Wear-resistant Castings

 

Item

Cr-Mo

Alloy Steel I

Cr-Mo

Alloy Steel II

Cr-Mo

Alloy Steel III

High Cr white iron

High Cr Alloy Steel

High Manganese Steel

Ni-Hard cast iron

C

0.30~0.50

0.65~0.90

0.40~0.90

2.40~3.20

1.1~2.2

0.90~1.30

2.40~3.60

Si

0.50~1.20

≤0.75

0.70~1.20

0.60~1.20

0.60~1.20

≤0.08

≤0.80

Mn

0.40~1.20

0.50~1.20

0.60~1.00

0.50~1.00

0.50~1.00

11.00~18.00

≤2.0

Cr

1.70~2.50

1.50~2.50

4.00~7.00

12.00~30.00

11.00~30.00

1.50~2.50

1.5~10

S

≤0.04

≤0.06

≤0.04

≤0.04

≤0.04

≤0.04

≤0.15

P

≤0.04

≤0.06

≤0.06

≤0.06

≤0.06

≤0.06

≤0.15

Mo

≤0.5

≤0.5

≤0.5

0.10~3.0

0.10~3.0

≤1.0

≤0.10

Cu

0.10~0.60

≤0.25

0.20~0.40

0.10~1.00

0.10~1.00

-

-

Ni

≤0.50

≤0.30

0~0.30

0~0.30

0~0.30

-

3.3~10

Re

≤0.02

≤0.02

≤0.02

-

-

-

-

Equivalent

Specifications

DL/T 681-1999

 

GB/T26651-2011

AS 2074 L2B Mod

DL/T 681-1999

GB/T 8263-1999

AS 2027 Cr27

AS 2027 CrMo 15/3

AS 2027 CrMo 20/2/1

ASTM A532 Class III type A 25% Cr

ASTM A532Class II type B 15% Cr-Mo

BS 4844 3E

DIN1695

NFA32401.

GB/T 5680-1998

DL/T 681-1999

JIS G 5153-1999

ASTM A 128

DIN GX120Mn12

AFNOR:Z120Mn12

GB/T 8263-1999

AS 2027/Ni-Cr1-550

AS 2027/Ni-Cr2-500

AS 2027/Ni-Cr4-500

AS 2027/Ni-Cr4-600

AS 2027/Ni-Cr4-630

ASTM A 532 1-A,B,C,D

ASTM A 532 2-A,B,C,D,E

ASTM A 532 3-A

Material Type

Martensite Steel

Martensite or

Pearlitic Cr Mo Steel

Martensite Steel

Martensite matrix

Austenitic Mn Steel

-

Hardness

HRc≥48

HB470 &

HB 321~370

HRc≥50

HRc≥56

HB≤300

HRc≥56

Impact Value

Ak≥40J

-

Ak≥10J

Ak≥4J

Ak≥80J

-

 

Our foundry has complete melting, heat treatment and test equipments, such as mid-frequency induction electrical furnaces, quenching and tempering furnaces, blast shot, spectrometer, Rockwell and Brinell Hardness tester, impactor, UT tester and metallographic microscope. We achieved the certificate of quality management system ISO 9001:2008. We have been exporting castings to oversea markets, such as Brazil, Australia and South Africa.

 

 

 

 

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