Indefinite Chilled Cast Iron Rolls

Indefinite Chilled Cast Iron RollsAlloy Indefinite Chilled Cast Iron Rolls is a cast iron with fine inter crystalline graphite evenly distributed throughout the working layer of roll barrel. The addition of alloy elements such as Manganese, Nickel, Chromium, and Molybdenum changes the matrix microstructure from pearlite, bainite to martensite. The present of small amount of fine graphite enhances the roll`s resistance to spallling, thermal crack and wearability. This roll has small hardness gradient in the working layer of roll barrel.Application: Intermidiate and finish stands of section mills, bar and rod mills, hot strip mill.                   Work rolls,skin pass rolls for Medium & heavy plate mills, hot strip mills. Specification: Grade C Si Mn P S Cr Ni Mo Barrel Hardness(HSD) NiCrMo ICDP III 2.90-3.60 0.60-1.20 0.40-1.20 ≤ 0.25 ≤0.05 0.70-1.20 2.01-3.00 0.20-0.60 65-78 NiCrMo ICDP IV 2.90-3.60 0.60-1.50 0.40-1.20 ≤ 0.10 ≤0.05 1.00-2.00 3.01-4.80 0.20-0.60 70-83 NiCrMo ICDP V 2.90-3.60 0.60-1.50 0.40-1.20 ≤ 0.10 ≤0.05 1.00-2.00 4.01-4.80 0.20-2.00 77-85