Chemical Composition(%)

C

Si

Mn

Cr

P

S

Mo

Cu

Ni

2.0-3.5

0.3-1.2

0.3-1.5

0.6-1.8

≤0.15

≤0.15

0-1.0

0-0.8

--

Hardness (HRC): ≥45

Impact Value Ak(J/cm2):≥1.6

Microstructure P+C

Times of Falling Balls≥8000

P--Pearlite                                   C--Carbide

Specification(mm)

Φ15

Φ20

Φ25

Φ30

Φ40

Φ50

Φ60

Φ70

Φ80

Φ90

Φ100

Φ110

Φ120

Diameter(mm)

Φ20

Φ25

Φ30

Φ40

Φ50

Φ60

Φ70

Φ80

Φ90

Φ100

Φ110

Φ120

Weight of each ball(kg)

0.0322

0.063

0.11

0.257

0.50

0.867

1.37

2.05

2.90

4.00

5.30

6.80

PCS/TON(piece)

31056

15873

9091

3891

2000

1153

729

487

345

250

188

147