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| Categories | Forged Steel Rolls |
|---|---|
| Brand Name: | NEW FORCE |
| Model Number: | 86CrMoV7 |
| Certification: | API |
| Place of Origin: | China |
| MOQ: | 10 tons |
| Price: | Negotiatable |
| Payment Terms: | T/T, L/C |
| Supply Ability: | 500 PIECES PER MONTH |
| Delivery Time: | ONE WEEK |
| Packaging Details: | Plywood Cases or pallets |
| Material: | 86CrMoV7 |
| Condition: | New |
| Processing Type: | Forging |
| Type: | Steel Rolling Equipment |
| Size: | As Per Drawing |
| Transport Package: | Steel Rack |
New Force produces a full range of forged work rolls, back-up rolls, and intermediate rolls. Our forged rolls are unsurpassed in strength and reliability.
Our forged work rolls for tandem and reversing cold reduction mills are manufactured to an optimum hardness to resist wear and prevent marking. Additionally these rolls have a microstructure which allows the surface finish to be resistant to thermal shock and have adequate hardness depth to allow usage without rehardening.
The forged steel back-up roll is a mill roll that supports the work roll and intermediate roll for the purpose of avoiding deflection of the work roll and affecting on the yield and quality of the plate and strip rolling mill. This is the key function of back up roll to ensure the operation of the whole rolling mill. The common materials are 9Cr2Mo, 86CrMoV7, 70Cr3Mo with 0.80% to 0.95% carbon content 2% Cr content. The diameter of roll body ranges from 350mm-1600mm.
Feature
Application
Forged steel back up roll is applicable for 4-Hi mill, 6-Hi mill, and other some small 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 |
Physical Properties
| Designation of rolls | Hardness (HSD) | Depth of hardness (mm) | Hardness deviation (HSD) |
| Work Roll | 70-104 | 10-50 | ±1 |
| Intermediate Roll | 70-85 | 10-50 | ±1 |
| Sendzimir Work roll | 60-66HRC | ≥10 | ±1 |
| Sendzimir Intermediate Roll | 55-60HRC | ≥15 | ±1 |
| Back-up Roll | 60-80 | 10-75 | ±1.5 |
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