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Alloy Indefinite chilled cast iron rolls(called AIC Rolls) are cast high Ni grain rolls with fine deposits of graphite on the surface. AIC rolls also called ICDP(indefinite chilled double poured) rolls. Mainly use to finishing stand of long product mill and HSM.

                                             

Alloy Indefinite chilled cast iron rolls are cast high Ni grain rolls with fine deposits of graphite on the surface. The hardness of these rolls can be changed by adjusting the chemical composition or by changing the casting method, making it possible to adapt the roll hardness to particular applications. Because of the presence of graphite, AIC rolls have a strong resistance to thermal shock. Alloy indefinite chilled roll produced by centrifugal casting, so AIC rolls also called ICDP(indefinite chilled double poured) rolls.

Chemical Composition

Symbol C Si Mn Cr Ni Mo
AIC 2.90-3.60 0.60-1.20 0.40-1.20 0.70-1.20 0.50-1.00 0.20-0.60
AIC 2.90-3.60 0.60-1.20 0.40-1.20 0.70-1.20 1.01-2.00 0.20-0.60
AIC 2.90-3.60 0.60-1.20 0.40-1.20 0.70-1.20 2.01-3.00 0.20-1.00
AIC 2.90-3.60 0.60-1.50 0.40-1.20 1.00-2.00 3.01-4.80 0.20-1.00

 

Physical Properties                                      

Symbol

Barrel Hardness

Roll Neck
Hardness

Tensile

Strength

AICⅠ

55-72 HS

35-55 HS

≥400 MPa

AICⅡ

55-72 HS

35-55 HS

≥400 MPa

AICⅢ

65-78 HS

32-45 HS

≥400 MPa

AICⅣ

70-83 HS

32-45 HS

≥400 MPa

                                                    

   

Recommended Applications

-Rolls for prefinishing stand, finishing stands of bar mills and wire mills.

-Rings for prefinishing stands of high speed wire mills.

-Work rolls for finishing final stand of hot strip mills.

-Work rolls for roughing stands and finishing stands of wide plate mills.

-Work rolls, backup rolls for hot strip(plate) temper mills.

-Work rolls for steckel mills.