化学元素（质量分数）/%

牌号

C

Si

Mn

Ni

V

Mb

Alt

P

S

16MnDR

≤0.20

0.15-0.5

1.02-1.6

—

—

—

≥0.02

≤0.025

≤0.012

15MnNiDR

≤0.18

0.15-0.5

1.02-1.6

0.20-0.6

≤0.06

≥0.02

≤0.025

≤0.012

09MnNiDR

≤0.12

0.15-0.5

1.02-1.6

0.30-0.8

—

≤0.04

≥0.02

≤0.020

≤0.012