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鐵合金基本知識—鉻鐵
瀏覽:345490 日期:2017/1/20 13:55:04
鉻鐵(根據GB/T5683-1987)
1、鉻鐵用作煉鋼時的合金加入劑。
2、鉻鐵按含碳量的不同,分為二十二個牌號,其化學成分應符合下表規定。
|
類 別 |
牌 號 |
化學成分,% |
|||||||||
|
Cr≥ |
C≥ |
Si≤ |
P≤ |
S≤ |
|||||||
|
范圍 |
Ⅰ |
Ⅱ |
Ⅰ |
Ⅱ |
Ⅰ |
Ⅱ |
Ⅰ |
Ⅱ |
|||
|
微 碳 |
FeCr55C3 |
60 |
52 |
0.03 |
1.5 |
2 |
0.03 |
0.04 |
0.03 |
||
|
FeCr69C0.06 |
63.0~75.0 |
0.06 |
1 |
0.03 |
0.025 |
||||||
|
FeCr55C6 |
60 |
52 |
0.06 |
1.5 |
2 |
0.04 |
0.06 |
0.03 |
|||
|
FeCr69C0.10 |
63.0~75.0 |
0.1 |
1 |
0.03 |
0.025 |
||||||
|
FeCr55C10 |
60 |
52 |
0.1 |
1.5 |
2 |
0.04 |
0.06 |
0.03 |
|||
|
FeCr69C0.15 |
63.0~75.0 |
0.15 |
1 |
0.03 |
0.025 |
||||||
|
FeCr55C15 |
60 |
52 |
0.15 |
1.5 |
2 |
0.04 |
0.06 |
0.03 |
|||
|
低 碳 |
FeCr69C0.25 |
63.0~75.0 |
0.25 |
1.5 |
0.03 |
0.025 |
|||||
|
FeCr55C25 |
60 |
52 |
0.25 |
2 |
3 |
0.04 |
0.06 |
0.03 |
0.05 |
||
|
FeCr69C0.50 |
63.0~75.0 |
0.5 |
1.5 |
0.03 |
0.025 |
||||||
|
FeCr55C50 |
60 |
52 |
0.5 |
2 |
3 |
0.04 |
0.06 |
0.03 |
0.05 |
||
|
中 碳 |
FeCr69C1.0 |
63.0~75.0 |
1 |
1.5 |
0.03 |
0.025 |
|||||
|
FeCr55C100 |
60 |
52 |
1 |
2.5 |
3 |
0.04 |
0.06 |
0.03 |
0.05 |
||
|
FeCr69C2.0 |
63.0~75.0 |
2 |
1.5 |
0.03 |
0.025 |
||||||
|
FeCr55C200 |
60 |
52 |
2 |
2.5 |
3 |
0.04 |
0.06 |
0.03 |
0.05 |
||
|
FeCr69C4.0 |
63.0~75.0 |
4 |
1.5 |
0.03 |
0.025 |
||||||
|
FeCr55C400 |
60 |
52 |
4 |
2.5 |
3 |
0.04 |
0.06 |
0.03 |
0.05 |
||
|
高 碳 |
FeCr67C6.0 |
62.0~72.0 |
6 |
3 |
0.03 |
0.04 |
0.06 |
||||
|
FeCr55C600 |
60 |
52 |
6 |
3 |
5 |
0.04 |
0.06 |
0.04 |
0.06 |
||
|
FeCr67C9.5 |
62.0~72.0 |
9.5 |
3 |
0.03 |
0.04 |
0.06 |
|||||
|
FeCr55C1000 |
60 |
52 |
10 |
3 |
5 |
0.04 |
0.06 |
0.04 |
0.06 |
||