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Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill

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Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill

China Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill supplier
Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill supplier Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill supplier Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill supplier Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill supplier

Large Image :  Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill

Product Details:

Place of Origin: China
Brand Name: SEEC
Certification: ISO
Model Number: Rolling mill

Payment & Shipping Terms:

Minimum Order Quantity: 10
Packaging Details: Standard international package
Delivery Time: 3-6months
Supply Ability: As required
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Detailed Product Description
Type: Steel Grade Cr1 Cr 2 Cr 3 Cr 5 Cr 12 Material: Forged Steel
Application1: Hot Rolling Mill Standard: ISO9001
Size: As Per Drawing Application2: Cold Rolling Mill

Forged Steel Rolls rolling mill steel grade Cr1 Cr 2 Cr 3 Cr 5 Cr 12

 

 

 

1.Production equipment:

 

1.1 Introduction furnace: 25tx8sets, 10t/3tx5sets

1.2 EAF: 30tx5sets

1.3 Ladle furnace: 50-70tx8sets

1.4 Large send Foundry equipment: 20 sets

1.5 Large & Middle size heat treatment: 50 sets

1.6 Large & Middle size centrifugal casting machine: 20 sets

1.7 Large & Middle size CNC & Heavy machine: 235 sets

1.8 Testing equipment: 35 sets

 

2. Production capacity: 150000Tons/Annual

 

2.1TYPE & Size:

 

2.1.1Cast roll & RING:

 

Backup roll: Max. Dia. 2000mm; Max weight 80t/pc,

Work roll: Max. Dia. 1600mm; Max. Barrel length 6500mm;

Max weight 85t/pc

Others: as per customer’s requirement.

 

2.1.2 Forged roll & RING:

Work roll for Cold Rolling mill: Max. Dia. 1100mm; Max weight 25t/pc,

Work roll for Hot Rolling mill: Max. Dia. 1600mm; Max weight 75t/pc

Backup roll for Hot Rolling mill: Max. Dia. 2000mm; Max weight 75t/pc

Others: as per customer’s requirement.

 

3. Forging


The qualified steel ingot is pressed to the roll blank by the hydraulic forging machine after pre-heating, heating and even heating.

 

The purpose of forging and pressing process is: the forging and pressing can reduce and compress the porosity, shrinkage and some pore; improve the macroscopic segregation (pattern segregation, V shape segregation) in the original structure of the steel ingot; shatter the gross liquation carbide and net carbide; crush and refine the gross grain.

 

In order to acquire the optimized feature of the roll, we strictly control the forging ratio , not less than 3 for work rolls while more than 2.5 for large size backup rolls.

 

4. Electro Slag Remelting

 

Electro slag remelting (ESR) is a specialized steel-making process in which a cast ingot in the form of an electrode is re-melted in a water-cooled copper mould. The melting is activated by resistive heat generated in a conductive slag.

 

Charactersistics of ESR:


1. No macroscopic segregation and few microscopic segregation. Very few and subtle non-metal inclusion; dispersed distribution.


2. Compact and homogeneous structure


3. High toughness and strength


4. Beneficial for improvement of anti-fatigue and heat impact ability of the roll

 

 

FORGED STEEL ROLL

Material Steel Grade Chemical coposition % Application
C Cr Mo V Ni Mn Co W  
Cr1 GCr15 0.95-1.05 1.3-1.65     ≤0.4      

Work roll of Cold mill

Straightenning roll

Pinch roll

9CrV 0.85-0.95 1.4-1.7   0.1-0.25 ≤0.25      
42CrMo 0.38-0.45 0.9-1.2 0.15-0.25           Work roll & Backup roll for Hot rolling mill
60CrMo 0.55-0.65 0.5-0.8 0.3-0.4          
60CrMnMo 0.55-0.65 0.8-1.2 0.3-0.4     0.7-1.0    
60CrMoV 0.55-0.65 0.9-1.2 0.3-0.4 0.15-0.35        

Straightenning roll

Pinch roll

Cr2 9Cr2Mo 0.85-0.95 1.7-2.1 0.2-0.4           Work roll, Middle roll, Backup roll for Cold Rolling mill
86CrMoV7 0.82-0.9 1.8-2.2 0.2-0.4 0.1-0.2        
9Cr2MoV 0.85-0.95 1.7-2.1 0.2-0.3 0.1-0.2        
Cr3 9Cr3Mo 0.85-0.95 2.5-3.5 0.2-0.4          

Work roll, Middle roll, Backup roll for Cold Rolling mill

(high quenching, deep hard layer)

MC3A 0.8-0.88 2.8-3.2 0.4-0.6 0.05-0.12 0.6-0.8      
MC3B 0.82-0.9 2.7-3.1 0.1-0.3 0.05-0.12 0.2-0.4      
70Cr3Mo 0.6-0.75 2.0-3.5 0.25-0.6          

Work roll, Middle roll, Backup roll for Hot Rolling mill

(high quenching, deep hard layer)

70Cr3NiMo 0.6-0.8 2.0-3.0 0.25-0.6   0.4-0.6      
Cr5 MC5 0.82-0.9 5-5.4 0.2-0.4 0.1-0.2 0.3-0.5      

Work roll for Cold Rolling mill

(high quenching, deep hard layer)

MC5A 0.77-0.84 5-5.4 0.3-0.5 0.1-0.2 0.3-0.5      
Cr12 Cr12MoV 1.45-1.7 11-12.5 0.4-0.6 0.15-0.3         Work roll, Middle roll for Multi-roll Rolling mill
Cr12Mo1V1 1.4-1.6 11-13 0.7-1.2 ≤1.1     ≤1.0  
Cr12MoVCo 1.4-1.6 11-13 0.8-1.2 0.75-0.95     0.3-0.5  
W steel W6Mo5Cr4V2 0.8-0.9 3.8-4.0 4.5-5.5 1.75-2.25       5.5-6.75 Work roll for Multi-roll Rolling mill
W12Cr4V5Co5 1.5-1.6 3.75-5.0 ≤1.0 4.5-5.25     4.75-5.25 11.75-13

 

Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill

Cr1 Cr2 Cr3 Cr5 Cr8 Cr12 Forged Steel Rolls work roll backup roll for hot and Cold Rolling Mill

 

Contact Details
BEIJING SINO STEEL ENGINEERING & EQUIPMENT CO., LTD.

Contact Person: sales

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