Item / Name

Steel Shot

 Chemical Composition

C

0.85-1.20

Si

0.40-1.20

Mn

0.60-1.20(S170:0.50-1.20 S110, S70:0.35-1.20)

S

≤0.05

P

≤0.05

Hardness

HRC40-50

Microstructure

Homogeneous tempered Martensite or Troostite

Density

≥7.20g/cm3

External Form

Round, Hollow particles<10%

Screen No.

Screen size

S70

S110

S170

S230

S280

S330

S390

S460

S550

S660

S780

S930

6

3.35

0

7

2.80

0

8

2.36

0

≥90%

10

2.00

0

0

≥85%

≥97%

12

1.70

0

≤5%

≥85%

≥97%

14

1.40

0

≤5%

≥85%

≥97%

16

1.18

0

≤5%

≥85%

≥97%

18

1.00

0

≤5%

≥85%

≥96%

20

0.850

0

≤10%

≥85%

≥96%

25

0.710

≤10%

≥85%

≥96%

30

0.600

0

≥85%

≥96%

35

0.500

≤10%

≥97%

40

0.425

0

≥85%

45

0.355

≤10%

≥97%

50

0.300

≥80%

80

0.180

≥80%

≥90%

120

0.125

≥90%

200

0.075