抗磨白口铸铁件的牌号与化学成分
(
摘自
GB
/
T8263
—
1999
)
|
牌号
|
化学成分,
(
%
)
|
||||||||
|
C
(
碳
)
|
Si
(
硅
)
|
Mn
(
锰
)
|
Cr
(
铬
)
|
Mo
(
钼
)
|
Ni
(
镍
)
|
Cu
(
铜
)
|
S
(
硫
)
|
P
(
磷
)
|
|
|
KmTBNi4Cr2
-
DT
|
2
.
4
~
3
.
0
|
≤
0
.
8
|
≤
2
.
0
|
1
.
5
~
3
.
0
|
≤
1
.
0
|
3
.
3
~
5
.
0
|
—
|
≤
0
.
15
|
≤
0
.
15
|
|
KmTBNi4Cr2
-
GT
|
3
.
0
~
3
.
6
|
≤
0
.
8
|
≤
2
.
0
|
1
.
5
~
3
.
0
|
≤
1
.
0
|
3
.
3
~
5
.
0
|
—
|
≤
0
.
15
|
≤
0
.
15
|
|
KmTBCr9Ni5
|
2
.
5
~
3
.
6
|
≤
2
.
0
|
≤
2
.
0
|
7
.
0
~
11
.
0
|
≤
1
.
0
|
4
.
5
~
7
.
0
|
—
|
≤
0
.
15
|
≤
0
.
15
|
|
KmTBCr2
|
2
.
1
~
3
.
6
|
≤
1
.
2
|
≤
2
.
0
|
1
.
5
~
3
.
0
|
≤
1
.
0
|
≤
1
.
0
|
≤
1
.
2
|
≤
0
.
10
|
≤
0
.
15
|
|
KmTBCr8
|
2
.
1
~
3
.
2
|
1
.
5
~
2
.
2
|
≤
2
.
0
|
7
.
0
~
11
.
0
|
≤
1
.
5
|
≤
1
.
0
|
≤
1
.
2
|
≤
0
.
06
|
≤
0
.
10
|
|
KmTBCr12
|
2
.
0
~
3
.
3
|
≤
1
.
5
|
≤
2
.
0
|
11
.
0
~
14
.
0
|
≤
3
.
0
|
≤
2
.
5
|
≤
1
.
2
|
≤
0
.
06
|
≤
0
.
10
|
|
KmTBCr15Mo
|
2
.
0
~
3
.
3
|
≤
1
.
2
|
≤
2
.
0
|
14
.
0
~
18
.
0
|
≤
3
.
0
|
≤
2
.
5
|
≤
1
.
2
|
≤
0
.
06
|
≤
0
.
10
|
|
KmTBCr20Mo
|
2
.
0
~
3
.
3
|
≤
1
.
2
|
≤
2
.
0
|
18
.
0
~
23
.
0
|
≤
3
.
0
|
≤
2
.
5
|
≤
1
.
2
|
≤
0
.
06
|
≤
0
.
10
|
|
KmTBCr26
|
2
.
0
~
3
.
3
|
≤
1
.
2
|
≤
2
.
0
|
23
.
0
~
30
.
0
|
≤
3
.
0
|
≤
2
.
5
|
≤
2
.
0
|
≤
0
.
06
|
≤
0
.
10
|
