Steel Rolls

Forged Steel: Hardened forged steel rolls manufactured for the cold rolling of steel and non-ferrous metals are of high carbon CR-Steel. Additionally, as the case may be, other alloying elements are added to enhance a specific property for better roll performance. The most common alloying elements are Ni, Cr, Mo, and V. The selection of a roll material depends mainly on the properties demanded by the rolling process, such as the following: hardness, hardness penetration, structure, crack- resisting properties, roughness, wear resistance, etc.

Chemical Composition of Forged Steel Work Rolls

Grade / Hardness

C

Si

Mn

Ni

Cr

Mo

CW3

0.070

0.030

0.030

<0.500

2.000

0.020

CW3

1.000

0.080

0.080

<0.500

3.000

0.050

Characteristics:  

Conventional Characteristics

Grade / Hardness

C

Si

Mn

Ni

Cr

Mo

CW4

0.070

0.030

0.030

<0.500

3.000

0.020

CW4

1.000

0.080

0.080

<0.500

4.000

0.050

Characteristics:  

Deep Hardness Penetration

Grade / Hardness

C

Si

Mn

Ni

Cr

Mo

CW5

0.070

0.030

0.030

<0.500

4.000

0.020

CW5

1.000

0.080

0.080

<0.500

6.000

0.050

Characteristics:  

Deep Hardness Penetration and Enchanced Wear Resistance
Chemical Composition of Back Up Forged Rolls

Grade / Hardness

C

Si

Mn

Ni

Cr

Mo

CB3

0.040

0.030

0.050

0.50 Max

2.500

0.050

CB3

0.060

0.050

0.080

0.50 Max

3.500

0.080

Characteristics:  

Differential Hardening

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