Equivalent Grade

ISO Grade

Hardness(HRA)≥

Density(g/cm 3 )≥

Bending strength(N/mm 3 )≥

YG6X

K01-K015

93.0

14.8

2500

YG8X

K15-K30

91.5

14.6

2500

YG10X

K15-K30

91.0

14.4

3000

YG13X

K15-K30

90.0

14.0

3000

YG6A

K10

92.0

14.8

1500

YG6X

K10

91.5

14.8

1600

YG6

K10-K20

90.5

14.8旧

1700

YG6

K10-K20

90.0

14.8

2000

YG8

K30

90.0

14.7

1800

YG8

K30

89.5

14.7

1800

YG8

K30

89.0

14.7

1800

YG11

K40

88.5

14.3

2500

YG15

-

87.0

14.0

2500

YG20

-

86.0

13.5

2500

YG8C

-

88.0

14.7

2300

YG9C

-

87.0

14.6

2400

YG11C

-

86.5

14.3

2500

YG13C

-

86.0

14.2

2500

YG15C

-

85.0

14.0

2500

YG20C

-

84.0

13.5

2500

YT15

P10

92.0

11.2

1350

YT14

P20

91.0

11.4

1400

YT5

P30

89.5

12.9

1700

YW1

M10

92.0

13.4

1400

YW2

M20

91.0

13.2

1600