JC-1

B2

0.70-0.85

0.17-0.37

0.70-1.00

≤0.035

≤0.035

0.50-0.60

≤0.20

≤0.20

/

0.015-0.050

JC-2

B2-1

0.55-0.70

0.15-0.30

0.65-0.85

≤0.020

≤0.020

0.70-1.10

≤0.20

≤0.20

/

0.015-0.050

JC-3

B3

0.58-0.66

1.70-1.90

0.68-0.80

≤0.030

≤0.030

0.78-0.90

≤0.20

≤0.20

/

0.015-0.050

JC-4

B4

0.65-0.75

1.20-1.40

0.50-0.70

≤0.025

≤0.025

0.85-1.00

/

≤0.25

/

/

JC-5

B6

0.75-0.90

0.17-0.37

0.8-1.02

≤0.035

≤0.035

0.88-0.98

≤0.25

≤0.25

0.06-0.13

0.020-0.047

JC-6

B6-1

0.82-0.90

0.15-0.35

0.90-1.05

≤0.020

≤0.020

0.88-0.98

≤0.25

≤0.25

0.06-0.13

0.020-0.047

JC-7

BU

0.95-1.05

0.15-0.35

0.95-1.05

≤0.025

≤0.025

0.45-0.55

≤0.06

≤0.15

≤0.05

0.020-0.040

JC-8

1090

0.90-1.10

0.17-0.37

0.60-0.90

≤0.025

≤0.025

≤0.25

≤0.02

≤0.02

/

/

JC-9

42CrMo

0.38-0.45

0.20-0.40

0.50-0.80

≤0.035

≤0.035

0.90-1.20

/

/

0.15-0.25

/

JC-10

40Cr

0.37-0.45

0.20-0.40

0.50-0.80

≤0.035

≤0.035

0.80-1.10

/

/

/

/

JC-11

65MN

0.62-0.70

0.17-0.37

0.90-1.20

≤0.035

≤0.035

≤0.25

/

/

/

/

JC-12

60MN

0.57-0.65

0.17-0.37

0.70-1.00

≤0.035

≤0.035

≤0.25

≤0.25

/

/

/

JC-13

50MN

0.48-0.56

0.17-0.37

0.70-1.00

≤0.035

≤0.035

≤0.25

≤0.25

/

/

/

直径

直径公差

单个球重量

表面硬度

冲击韧性

(mm)

(mm)

(g)

(HRC)

(j/cm2 )

Φ20

  +2      -1

32

   ＞60 

      ≥12

Φ25

64

Φ30

110

Φ40

263

Φ50

513

Φ60

  +3    -2

888

Φ70

1410

Φ80

2104

Φ90

2996

Φ100

4110

Φ110

 +4     -2

5457

Φ120

7102

 ＞58 

Φ130

9030

Φ140

 +4    -3

11278

 ＞55

Φ150

13871