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High Speed Steel Rolls

Product details

Material

High Speed Steel Rolls

Size

φ200mm≤(body diametr)≤φ800mm

Parameter

(body hardness)
80 -85HSD

(neck hardness
32-45HSD

(tensile strength)700-900 MPA

Element

C%

Si%

Mn%

W%

v%

Ni%

Cr%

Mo%

Nb%

1.6-2.0

0.20-1.00

0.30-1.00

1.50-2.50

4.00-6.00

0.50-1.50

4.00-8.00

4.00-6.00

0.50-1.50

Mill stand

Section mills

 

H-shaped mills


Wire & rod mills

Pre Finished ,Finished

Strip mills

Finished

Description

High Speed Steel (HSS) roll has high hardness and abrasive resistance under high temperature. It is made by centrifuge method; the core part is made of nodular cast iron. Through component and heat treatment technique, the hardness in working layer is able to reach 80-85HSC; matrix in martensite contains V, W, Mo compound carbide so as to assure the even hardness and aperture abrasion in working layer. This kind of roller is applicable to finishing rack to expand working period and improve surface quality of rolling materials.