NAME

BRAND

CHEMICAL ELEMENTS

C

Si

Mn

Cr

Mo

Cu

Ni

P

S

HI-CR CASTING BALLS

ZQCr26

2.0-2.8

≤1.0

0.5-1.5

22-28

0-1.0

0-2.0

0-1.5

≤0.10

≤0.06

HI-CR CASTING BALLS

ZQCr20

2.0-2.8

≤1.0

0.5-1.5

18-22

0-2.5

0-1.2

0-1.5

≤0.10

≤0.06

HI-CR CASTING BALLS

ZQCr15

2.5-3.2

≤1.0

0.5-1.5

12-17

0-3.0

0-1.0

0-1.5

≤0.10

≤0.06

ME-CRCASTINGBALLS

ZQCr8

2.1-3.2

0.5-2.2

0.5-1.5

6-10

0-1.0

0-0.8

0-1.5

≤0.10

≤0.06

LOW-CR CASTING BALLS

ZQCr2

2.2-3.6

≤1.2

0.5-1.5

1.5-3.5

0-1.0

0-0.8

-

≤0.10

≤0.10

NAME

BRAND

SURFACE HARDNESS

ENDURANCE IMPACT TEST(TIMES)

QUENCHED

UNQUENCHED

HI-CR CASTING BALLS

ZQCr26

≥56

≥45

≥8000

HI-CR CASTING BALLS

ZQCr20

≥56

≥45

≥8000

HI-CR CASTING BALLS

ZQCr15

≥56

≥49

≥8000

ME-CRCASTINGBALLS

ZQCr8

-

≥48

≥8000

LOW-CR CASTING BALLS

ZQCr2

-

≥45

≥8000

ITEMS

SIZES

φ25

φ30

φ40

φ50

φ60

φ70

φ80

φ90

φ100

φ110

φ120

φ130

TOLERANCE

+1.0

-0.5

+2.0

-1.0

+3.0

-1.0

+3.5

-1.5

DIFFERENCE BETWEEN MAX DIA AND MIN DIA

≤1.0

≤2.0

≤3.0

≤4.0