High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’(ISO9001:2008)

Loading Port:China Main Port

Payment Terms:TT or LC

Min Order Qty:25M.T. m.t.

Supply Capability:150,000M.T. m.t./month

Product Description:

High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’(ISO9001:2008)

1)Specification for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’

Size: 1''-6''(25mm-130mm)

Hardness: 60HRC-65HRC

Breakage Rate<0.5%

Impact Toughness>12J/cm2

Certification: ISO9001:2008, SGS, etc

2)Chemical Composition for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’

Grade

C

Mn

Si

Cr

S

P

50Mn

0.48-0.56

0.70-1.0

0.17-0.37

0.25max

0.035max

0.035max

60Mn

0.57-0.65

0.70-1.0

0.17-0.37

0.25max

0.035max

0.035max

65Mn

0.6-0.7

0.9-1.2

0.17-0.37

0.25max

0.035max

0.035max

75MnCr

0.70-0.85

0.7-0.8

0.17-0.37

0.2-0.7

0.03max

0.03max

Rail Iron

0.5-0.65

0.60-1.0

0.15-0.37

0.25max

0.04max

0.04max

Rail Iron

0.60-0.8

0.90-1.2

0.20-0.40

0.20-0.8

0.07max

0.03max

3)Weight and Microstructure for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’

Norminal Diameter

Diametrical Tolerance(mm)

Approx Weight of Single Ball(kg)

Average Number of One MT

Microstructure

25mm/1''

+1.5,-0.5

0.064

15625

M+B+C

(M-Martensite;B-Bainitic;C-Carbide)

30mm/1.25''

+1.5,-0.5

0.11

9090

40mm/1.5''

+2.0,-1.0

0.26

3846

50mm/2''

+2.0,-1.0

0.51

1961

60mm/2.5''

+3.0,-2.0

0.89

1124

70mm/2.75''

+3.0,-2.0

1.4

714

80mm/3.25''

+3.0,-2.0

2.1

476

90mm/3.5''

+3.0,-2.0

3

333

100mm/4''

+4.0,-3.0

4.1

244

110mm/4.5''

+4.0,-3.0

5.47

283

120mm/4.75

+4.0,-3.0

7.1

141

130mm/5''

+4.0,-3.0

9.02

111

4) Application for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’

Mine

Cement Plant

Power Station

Chemical Industry

etc

5) Production Process for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’

Testing of the raw material—Smelting—Test during smalting—Adjust chenical compostion—Moulding—Test alter smlting — Pass/Abandonment — Grinding — Surface Test — Quenching — Tempering—HardnessTesting—Packed and storage—Testing the finished products — In Stock

6) Packing for High Chrome Alloy Casting Grinding Ball with HRC60-65 Dia 1’’-Dia6’’