High Chrome
Steel Rolls

HiCr Steel is characterized by excellent fire crack resistance and very good oxidation behaviour at rolling temperature. Very good wear resistance and constant material properties throughout the shell layer.

HiCr Steel is manufactured by horizontal spin casting. No retained Austenite and the right structure and properties are obtained through the chemical composition, high temperature quenching and tempering cycles.

Core Material

  • Nodular Iron

Application

  • Work Rolls for Roughing Stands of conventional HSM
  • Early Stands of CSP Mill

MATERIAL CHEMISTRY

BARREL HARDNESS

(HSC)

C Si Mn Cr Ni Mo V
HiCr Steel 0.90-2.00 0.40-1.40 0.40-1.40 9.0-15.0 0.60-1.60 1.00-2.00 ≤1.00 65-80

 

 

TYPICAL PHYSICAL PROPERTIES
Neck Hardness (HSC) Tensile Strength (N/mm2) Unevenness of Barrel Surface Hardness (HSC) Difference of Shell Thickness
35-45

shell ≥750

core & necks ≥400

<3 <10
 

Hardness Distribution

Microstructure
100x

500x