|
类别
|
牌号
|
Mn
|
C
|
Si
|
P
|
S
|
|
I
|
II
|
I
|
II
|
|
不大于
|
|
高碳锰铁
|
FeMn78C8.0
|
75.0~82.0
|
8.0
|
1.5
|
2.5
|
0.20
|
0.33
|
0.03
|
|
FeMn74C7.5
|
70.0~77.0
|
7.5
|
2.0
|
3.0
|
0.25
|
0.38
|
0.03
|
|
FeMn68C7.0
|
65.0~72.0
|
7.0
|
2.5
|
4.5
|
0.25
|
0.40
|
0.03
|
|
牌号
|
Mn
|
Si
|
C
|
P
|
S
|
|
I
|
II
|
III
|
|
|
不大于
|
|
FeMn64Si23
|
60.0~67.0
|
20.0~25.0
|
1.2
|
0.10
|
0.15
|
0.25
|
0.04
|
|
FeMn68Si18
|
65.0~72.0
|
17.0~20.0
|
1.8
|
0.10
|
0.15
|
0.25
|
0.04
|
|
FeMn64Si18
|
60.0~67.0
|
17.0~20.0
|
1.8
|
0.10
|
0.15
|
0.25
|
0.04
|
|
FeMn68Si16
|
65.0~72.0
|
14.0~17.0
|
2.5
|
0.10
|
0.15
|
0.25
|
0.04
|
|
FeMn64Si16
|
60.0~67.0
|
14.0~17.0
|
2.5
|
0.20
|
0.25
|
0.30
|
0.05
|
|
注：硫为保证元素，其余均为必测元素。
|
铬铁
Ferrochromium
适用于炼钢作为合金加入剂
|
类别
|
牌号
|
化学成分
％
|
|
Cr
|
C
|
Si
|
P
|
S
|
|
范围
|
I
|
II
|
I
|
II
|
I
|
II
|
I
|
II
|
|
不小于
|
不大于
|
|
高碳
|
FeCr67C6.0
|
62.0~72.0
|
|
|
6.0
|
3.0
|
|
0.03
|
|
0.0
|
0.1
|
|
FeCr55C600
|
|
60.0
|
52.0
|
6.0
|
30.0
|
|
