Xi'an New Force Energy Engineering Co.,Ltd
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New Force specializes in supplying all kinds of forging steel work roll ,back up roll, intermediate roll
and other rolls .
Application :
Hot rolled steel strip rolling mill
Cold rolled steel strip rolling mil
Section steel booming
Section steel roughing rolling
Universal section mill
Roll steel grade :
includes 60CrMo, 9Cr2Mo , 86CrMoV7 , 70Cr3Mo etc .
Forged steel intermediate roll is mainly used in high-precision six-roll rolling mill(part of eight-roll rolling mill), which is named because it is located between working roll and back-up roll.
Main function of forged steel intermediate roll is to control the strip shape in rolling process. According to the requirements of different hardening depth, material such as 2% Cr, 3% Cr,5% Cr and semi-high speed steel (SSH) can be used.
| Roller classification | (HS) Hardness (HS) | Neck strength (MPA) | Main Application |
| 2%-8%Cr 2%-8%Cr forged steel cold mill roll | 90-102 | ≥900 | Cold strip mill work roller |
| 75-85 | ≥900 | Intermediate roll for cold strip mill | |
| Fared HSS(high speed steel)roll | 88-95 | ≥900 | Cold strip mill work roller |
| 50-60CrMnMo Cr2-Cr5 50-60CrMnMo forged steel roll; Cr2-Cr5 forged steel roller | 55-80 | ≥850 | Backup rollers for cold and hot strip mills |
| Forged steel hot mill roller | 35-50 | ≥800 | Blooming or roughing roller for section mill |
| Horizontal roll shaft for universal mill | 35-50 | ≥800 | Horizontal roller shaft for universal section mill |
| Specification | Material | Diameter(mm) | Length(mm) | Weight(Tons) |
| Work Rolls | 9Cr2Mo,9Cr3Mo,MC3,MC5 etc. | Max.φ610mm | Max.6000mm | Max. 8.0T |
| Intermediate Rolls | 9Cr2Mo,9Cr3Mo,MC3,MC5 etc. | Max.φ800mm | Max.6000mm | Max. 8.5T |
| Back-up Rolls | Cr2, Cr3, Cr5,70Cr3Mo etc. | Max.φ1500mm | Max.7000mm | Max. 40T |
| Material | Chemical Composition (%) | |||||||||
| C | Si | Mn | Cr | Mo | Ni | V | Cu | P | S | |
| 9Cr2Mo | 0.88-0.95 | 0.25-0.45 | 0.20-0.35 | 1.85-2.10 | 0.25-0.40 | ＜0.25 | -- | ＜0.20 | ＜0.015 | ＜0.010 |
| 86CrMoV7 | 0.82-0.90 | 0.15-0.35 | 0.30-0.55 | 1.80-2.40 | 0.20-0.40 | ＜0.25 | 0.05-0.15 | ＜0.20 | ＜0.015 | ＜0.010 |
| 9Cr3Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.35 | 2.80-3.50 | 0.25-0.40 | ＜0.25 | -- | ＜0.20 | ＜0.015 | ＜0.010 |
| MC3 | 0.82-0.90 | 0.60-0.90 | 0.20-0.45 | 2.80-3.50 | 0.40-0.60 | 0.60-0.80 | 0.05-0.15 | ＜0.20 | ＜0.015 | ＜0.010 |
| MC5 | 0.82-0.90 | 0.30-0.55 | 0.20-0.50 | 4.80-5.40 | 0.40-0.60 | 0.40-0.60 | 0.05-0.15 | ＜0.20 | ＜0.015 | ＜0.010 |
| 70Cr3Mo | 0.60-0.75 | 0.40-0.70 | 0.40-0.70 | 2.50-3.50 | 0.60-0.80 | ≤0.60 | -- | ＜0.20 | ＜0.015 | ＜0.010 |
| 70Cr3NiMo | 0.60-0.75 | 0.40-0.70 | 0.40-0.70 | 2.50-3.50 | 0.60-0.80 | 0.50-1.00 | -- | ＜0.20 | ＜0.015 | ＜0.010 |
| 70Cr3NiMoV | 0.60-0.75 | 0.17-0.37 | 0.20-0.30 | 1.70-2.20 | 0.30-0.50 | 0.30-0.50 | 0.10-0.20 | ＜0.20 | ＜0.015 | ＜0.010 |
