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Milling Line

Backup Roll

Intermediate Roll

Work Roll
Steel Roll Manufacture Process
Roll Performance Parameter Table
Hardness Retention Anti-wear Anti-mark Grinding Performance Anti-accident Roughness Retention Hardness Value/HSD CHD/mm
Cr2 ★ ★ ★ ★ ★ ★ ★ ★ ☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ☆ 93-97 18
● ● ● ● ● ● ● ● ○ ● ● ● ● ● ● ● ● ● ● ● ○ 80-85 25
■ ■ ■ ■ ■ ■ ■ ■ □ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 65-70 30
Cr3 ★ ★ ★ ☆ ★ ★ ★ ☆ ★ ★ ★ ☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ☆ 94-98 25
● ● ● ○ ● ● ● ○ ● ● ● ○ ● ● ● ● ● ● ● ● ● ● ● ● ○ 82-86 30
■ ■ ■ □ ■ ■ ■ □ ■ ■ ■  ■ ■ ■ ■ □ ■ ■ ■ ■ ■ ■ ■ □ 70-75 35
Cr4 /   /   / /   /   / /   /   / /   /   / /   /   / /   /   / /   /   /  /   /   / 
/   /   /  /   /   / /   /   / /   /   / /   /   / /   /   / /   /   /  /   /   / 
■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ □ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ □ 70-75 40
Cr5 ★ ★ ★ ★ ★ ★ ★ ★ ☆ ★ ★ ★ ★ ☆ ★ ★ ★ ★ ☆ ★ ★ ★ ☆ ★ ★ ★ ★ 95-98 35
● ● ● ● ● ● ● ● ● ● ● ○ ● ● ● ● ● ● ● ○ ● ● ● ● ○ 82-86 40
■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 72-77 50
SHSS ★ ★ ★ ☆ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★  ★ ★ ★ ★ ☆ ★ ★ ★ ★ ☆ 92-96 35
● ● ● ● ● ● ● ● ○ ● ● ● ● ● ● ● ○ ● ● ● ● ○ ● ● ● ● ○ 82-86 40
/   /   /  /   /   /  /   /   /  /   /   /  /   /   /  /   /   /  /   /   /  /   /   / 
HSS ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ☆ ★ ★ ★ ☆ ★ ★ ★ ★ ☆ ★ ★ ★ ★ ★ 93-98 40
/   /   /  /   /   /  /   /   /  /   /   /  /   /   /  /   /   /  /   /   /  /   /   / 
/   /  /  /   /  /  /   /  /  /   /  /  /   /  /  /   /  /  /   /   /  /   /   / 
Work Roll ★            Intermediate Roll ●             Backup Roll ■         No Application   /  /  /
From the top table you can choose the right material as soon as possible. With the material level up, the performance also promote a lot. But this is not mean to choose the best material, it also depends the operation line running stage. Normally at the prototype stage we should focus on the "anti-accident" ,if at the normal production phase, we should focus on the "anti-wear" and "Anti-accident", and if at the output promote stage, we should consider all the features. So it is not to find the best material but to find the right one.