Forged cold mill roll
The forged cold roll including work roll, intermediate roll and backup roll. In order to ensure product quality, the mill rolls provided by Yelong are all from the beginning of the ingredients, through smelting, LF/VD, ingot casting, electroslag remelting, forging, post-forging heat treatment, rough machining, preparatory heat treatment, semi-finishing, induction quenching, sub-zero treatment, tempering, finish machining, packaging and other processes. The working layer can reach above 30mm. The grain size is controlled at grade 9.5-11 and martensite grade≤2 to ensure the wear resistance and anti-accident performance of the roll.
Chemical composition
|
material |
C |
Si |
Mn |
Cr |
Ni |
Mo |
V |
|
Cr2 |
0.8-0.95 |
0.15-0.6 |
0.2-0.5 |
1.7-2.4 |
≤0.25 |
0.15-0.5 |
0.05-0.15 |
|
Cr3 |
0.5-0.95 |
0.2-0.9 |
0.2-0.9 |
1.8-3.5 |
≤0.6 |
0.15-0.6 |
0.05-0.15 |
|
Cr5 |
0.5-0.95 |
0.2-0.9 |
0.2-0.9 |
4.8-5.4 |
0.15-0.6 |
0.15-0.6 |
0.1-0.3 |
Yelong International
E-mail:
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