牌号

Trade Name

C

Mn

Si

Cr

Mo

W

V

S

P

Ni

HRC

（国家标准台式硬度计）

特点及主要用途

characteristicsandapplication

D224

0.25-0.35

1.0-2.0

0.50-1.0

5.50-7.50

0.80-1.50

1.0-2.0

0.5-1.0

0.010

0.018

45-55

用于热轧开坯辊堆焊

Applied to repairhot-rolling bloomingroller

D224B

0.25-0.55

1.0-2.0

0.50-1.0

5.50-7.50

0.80-1.50

1.0-2.0

0.5-1.0

0.010

0.015

53-60

用于热轧开坯辊堆焊

Applied to repairhot-rolling bloomingroller

D414N

0.05-0.15

0.5-2.5

0.3-1.5

11.5-14.5

0.5-1.5

2.0-4.0

40-50

埋弧焊丝用于连铸辊堆焊

Applied to repaircontinuous caster roller

D414N-O

0.05-0.15

0.5-2.5

0.3-1.5

11.5-14.5

0.5-1.5

2.0-4.0

40-50

自保护焊丝用于连铸辊堆焊

Selfshielded welding wireis applied to repaircontinuous caster roller