Sidebar

The forged steel rolls for hot mills are manufactured by forged steel blanks with special heat treatment is applied to make rolls in satisfactory barrel hardness and hardening depth. The forged rolls for hot mills have good wear-ability, high toughness and excellent biting ability.

Chemical Composition

Symbol

C

Si

Mn

Cr

Ni

Mo

V

W

FSH-1

0.55-0.65

0.17-0.40

0.50-1.00

0.50-1.20

≤0.25

0.20-0.40

-

-

FSH-2

0.55-0.65

0.20-0.40

0.60-1.00

-

0.10-0.30

0.10-0.30

-

-

FSH-3

0.45-0.65

0.20-0.50

0.50-0.90

3.00-3.60

-

0.40-1.20

0.10-0.35

-

FSH-4

0.60-0.80

0.30-0.80

0.40-0.90

2.50-3.50

0.40-0.50

0.20-0.60

-

-

FSH-5

0.30-0.40

≤0.40

≤0.40

2.20-2.70

-

-

0.20-0.50

7.50-9.00

FSH-6

0.32-0.43

0.80-1.20

0.20-0.50

4.50-5.50

-

1.00-1.60

0.30-0.60

-

FSH-7

0.80-0.95

0.25-0.45

0.20-0.55

1.70-2.40

-

0.20-0.40

≤0.15

-

Barrel Hardness (HS)

HARDNESS

FSH-1

FSH-2

FSH-3

FSH-4

FSH-5

FSH-6

FSH-7

BERREL

34-40

35-45

50-60

34-45

65-76

50-58

69-76

SURFACE

55-75

50-60

60-70

60-75

80-87

65-71

80-87

Recommended Applications

Mill Type

Roll Type

Forged Roll for Hot Mills

1

2

3

4

5

6

7

Plate mills

Primary rolls

●

●

          

Planetary mills

Work rolls

        

●

    

Feed rolls

●

            

Back up rolls

●

            

Welding tube mills

Forming,sizing and vertical rolls

            

●

Seamless tube mills

Extruding rolls

        

●

●

  

Straitening rolls

            

●

Non-ferrous plate and strip mills

Piercing rolls

      

●

      

Pushing point rolls

            

●

Work rolls

  

●

●

        

Back up rolls

    

●

●