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Alloy cast steel Rolls

These Metal Rolls have less carbon content but variety of alloy elements are used to strengthen the matrix. The microstructure is primarily pearlitic with parts of cementite. Their properties include high tensile strength and toughness. After the tailored heat treatment process, the micro structure condition improves thereby complimenting good mechanical properties like good thermal cracking resistance, fatigue resistance and wear resistance.

Application of Alloy Cast Steel Rolls include :

  • Medium and small blooming rolling.
  • Section roughing rolling.
  • Section strip wire rod rough and intermediate rolling.
  • Billets rough rolling mill and rail beams

Size limitation :

  • :

    600 mm diameter
  • :

    150 mm diameter

Material Specifications :

Alloy Cast Steel Rolls

Alloy cast steel Rolls ACB 1 ACB 2
Composition (%Wt)
Carbon (C) 0.50-0.90 0.60-1.20
Silicon (Si) 0.50,MAX 0.50,MAX
Manganese (Mn) 0.60-0.90 0.60-0.90
Nickel (Ni) 0.50,MAX 0.50-0.90
Chromium (Cr) 0.60-1.00 0.80-1.20
Molybdenum (Mo) 0.20-0.40 0.20-0.50
Mechanical Properties
Hardness (HSC) 30-40 40-45
Tensile Strength (N/mm2) 600 - 750

Graph 1: Hardness drop curve for ACB Rolls, ACB: Alloy Cast Steel base

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