Roller types of centrifugal
|
The main chemical components(%) |
|
|
|
|
C |
Si |
Mn |
Ni |
Cr |
Mo |
Ni-Cr-Mo chilled cast iron rolls |
Ⅰ |
3.0/3.5 |
0.25/0.5 |
0.3/0.8 |
0.8/2.0 |
0.4/1.0 |
0.2/0.6 |
60-75 |
35-48 |
≥400 |
Bar finishing mill and a high-speed wire rod mill pre-finishing mill; strip finishing mill work rolls |
Ⅱ |
3.0/3.5 |
0.25/0.5 |
0.3/0.8 |
2.0/3.0 |
0.5/1.2 |
0.2/0.6 |
65-80 |
35-48 |
≥400 |
Ⅲ |
3.0/3.5 |
0.25/0.5 |
0.3/0.8 |
3.0/4.5 |
0.6/1.5 |
0.2/0.6 |
70-85 |
35-48 |
≥400 |
Pearlite spheroidal graphite iron roll and roll ring |
Ⅰ |
3.0/3.5 |
0.5/1.0 |
0.5/1.0 |
0.5/1.0 |
0.5/1.0 |
0.2/0.6 |
65-75 |
35-48 |
≥400 |
Bar mill rolling; rolling in the high-speed wire rod mill. |
Ⅱ |
|
0.5/1.0 |
0.5/1.0 |
1.0/2.0 |
0.7/1.3 |
0.2/0.6 |
65-80 |
35-48 |
≥400 |
Ⅲ |
3.0/3.5 |
0.5/1.0 |
0.5/1.0 |
2.0/3.0 |
0.7/1.5 |
0.2/0.6 |
65-80 |
35-48 |
≥400 |
Bar finishing mill and a high-speed wire rod mill pre-finishing mill; strip finishing mill work rolls; Seamless Steel Tube Mill determined by roller Central Drive. |
Ⅳ |
3.0/3.5 |
0.5/1.0 |
0.5/1.0 |
3.0/5.0 |
1.0/2.0 |
0.2/0.6 |
70-85 |
35-48 |
≥400 |
Pearlite spheroidal graphite iron roll and roll ring |
Ⅰ |
2.9/3.5 |
1.2/2.0 |
0.4/1.0 |
0.5/1.0 |
0.2/0.6 |
0.2/0.6 |
45-60 |
35-48 |
≥400 |
Crude steel rolling mill; rough bar mill, rolling; high-speed wire rod mill rough, rolling; rough strip mill, rolling; Seamless Steel Tube Mill determined by roller Central Drive. |
Ⅱ |
2.9/3.5 |
1.2/2.0 |
0.4/1.0 |
1.0/3.0 |
0.2/0.6 |
0.2/0.6 |
55-70 |
35-48 |
≥400 |
Ductile Iron roll and roll ring |
Ⅰ |
2.9/3.6 |
1.5/2.0 |
0.4/1.0 |
3.0/4.0 |
0.2/0.8 |
0.6/1.0 |
60-70 |
35-48 |
≥400 |
Steel rolling steel mill in the rolling; finishing, in the bar rolling mill and finishing high-speed wire rod mill in the rolling, pre-finishing mill; strip mill in the rolling; Seamless Steel Tube Mill determined by roller Central Drive. |
Ⅱ |
2.9/3.6 |
1.2/1.8 |
0.4/1.0 |
3.5/5.0 |
0.4/1.0 |
0.6/1.0 |
70-80 |
35-48 |
≥400 |
Semi-steel roll and roll ring |
ZUB140 |
1.3/1.5 |
0.3/0.6 |
0.7/1.1 |
≥0.5 |
1.0/1.7 |
0.2/0.6 |
40-50 |
35-48 |
≥400 |
Bar finishing mill and a high-speed wire rod mill rough rolling; rough rolling strip mill; H-type steel roll-finishing Central. |
ZUB160 |
1.5/1.7 |
0.3/0.6 |
0.7/1.1 |
≥0.5 |
1.0/1.7 |
0.2/0.6 |
50-60 |
35-48 |
≥400 |
ZUB180 |
1.7/1.9 |
0.3/0.6 |
0.7/1.1 |
≥0.5 |
1.5/2.0 |
0.2/0.6 |
50-60 |
35-48 |
≥400 |
Graphite steel roll and roll ring |
ZUB140 |
1.3/1.5 |
1.3/1.7 |
0.6/0.8 |
0.6/1.1 |
0.6/0.8 |
0.2/0.6 |
40-50 |
35-48 |
≥400 |
Crude steel rolling mill; rough bar rolling mill and a high-speed wire rod mill rough rolling; rough rolling strip mill. |
ZUB160 |
1.5/1.7 |
1../1.6 |
0.7/1.0 |
0.7/1.2 |
0.7/1.0 |
0.2/0.6 |
40-50 |
35-48 |
≥400 |