牌号

化学成分,wt%

C

Si

Mn

P

S

Y30

0.27~0.35

0.15~0.35

0.70~1.00

≤0.06

0.08~0.15

Y12

0.08~0.16

0.15~0.35

0.70~1.00

0.08~0.15

0.10~0.20

Y45

0.42~0.50

≤0.40

0.70~1.00

≤0.06

0.15~0.25

Y15

0.10~0.18

≤0.15

0.80~1.20

0.05~0.10

0.23~0.33