High Strength Nodular Iron (NCC SGP) Rolls for Section Mill

High Strength Nodular Iron (NCC SGP) Rolls for Section Mill

Negotiable 2 Pieces (MOQ)

Basic Info.

Model NO.
84553000
Standard
GB
Customized
Customized
Material
Metal
Application
Metal Processing Machinery Parts
Transport Package
Metal Pallet
Specification
Various
Trademark
CAMET
Origin
China
HS Code
8455300000
Production Capacity
8000 Tons Per Year

Product Description

Spheroidal graphite cast iron roll
Properties
Thanks to its higher content of Ni and Mo alloys, pearlite, basinite and martensite matrixes with excellent performance are produced. The
graphite si spherical form, demonstraing good heat transfer property and high tensile strength. Through changing the struture into basinite
of marensite matrix, chemical compostion of needly-like spherical iron of heat treatment, a dense reticular primary cementite with high wear-
resistance is produced.

Chemical Analysis
Designation of rolls C Si Mn P S Ni Cr Mo Mg
CrMo semi-chilled SG cast iron rolls 2.9/3.6 0.8/2.5 0.4/1.2 ≤0.25 ≤0.03 0.2/0.6 0.2/0.6 >0.04
CrMo indefinite chilled SG cast iron rolls 2.9/3.6 0.8/2.5 0.4/1.2 ≤0.25 ≤0.03 0.2/0.6 0.2/0.6 >0.04
NiCrMo indefinite chilled SG cast iron rolls (I) 2.9/3.6 0.8/2.5 0.4/1.2 ≤0.25 ≤0.03 0.5/1.0 0.2/0.6 0.2/0.6 >0.04
NiCrMo indefinite chilled SG cast iron rolls (II) 2.9/3.6 0.8/2.5 0.4/1.2 ≤0.25 ≤0.03 1.0/2.0 0.3/1.2 0.2/0.8 >0.04
Pearlitic nodular cast iron rolls (I) 2.9/3.6 1.4/2.2 0.4/1.0 ≤0.15 ≤0.03 1.5/2.0 0.1/0.6 0.2/0.8 >0.04
Pearlitic nodular cast iron rolls (II) 2.9/3.6 1.2/2.0 0.4/1.0 ≤0.15 ≤0.03 2.0/2.5 0.2/1.0 0.2/0.8 >0.04
Pearlitic nodular cast iron rolls (III) 2.9/3.6 1.0/2.0 0.4/1.0 ≤0.15 ≤0.03 2.5/3.0 0.2/1.2 0.2/0.8 >0.04
bainitic nodular cast iron rolls (I) 2.9/3.6 1.2/2.2 0.2/0.8 ≤0.10 ≤0.03 3.0/3.5 0.2/1.0 0.5/1.0 >0.04
bainitic nodular cast iron rolls (II) 2.9/3.6 1.2/2.0 0.2/0.8 ≤0.10 ≤0.03 3.5/4.5 0.3/1.5 0.5/1.0 >0.04


Physical Properties
Designation of rolls Barrel hardness (HSD) Neck hardness (HSD) Tensile strength (MPa)
CrMo semi-chilled SG cast iron rolls 40~55 32~50 >300
CrMo indefinite chilled SG cast iron rolls 55~70 35~55 >300
NiCrMo indefinite chilled SG cast iron rolls (I) 48~70 35~55 >320
NiCrMo indefinite chilled SG cast iron rolls (II) 48~70 35~55 >320
Pearlitic nodular cast iron rolls (I) 45~55 35~55 >450
Pearlitic nodular cast iron rolls (II) 55~65 35~55 >450
Pearlitic nodular cast iron rolls (III) 62~72 35~55 >450
bainitic nodular cast iron rolls (I) 55~78 32~45 >350
bainitic nodular cast iron rolls (II) 60~80 32~45 >350

Microstructure
Designation of rolls Microstructure
CrMo semi-chilled SG cast iron rolls Pearlite + cementite + SG + small percentage fermite
CrMo indefinite chilled SG cast iron rolls Pearlite + cementite + SG
NiCrMo indefinite chilled SG cast iron rolls (I) Pearlite + cementite + SG
NiCrMo indefinite chilled SG cast iron rolls (II) Fine pearlite + cementite + SG
Pearlitic nodular cast iron rolls (I) pearlite + cementite + small percentage fermite
Pearlitic nodular cast iron rolls (II) pearlite + cementite + small percentage fermite
Pearlitic nodular cast iron rolls (III) pearlite + cementite + small percentage fermite
bainitic nodular cast iron rolls (I) bainite + cementite + SG
bainitic nodular cast iron rolls (II) bainite + cementite + SG

Application
Designation of rolls Application
CrMo semi-chilled SG cast iron rolls Section mill, bar mill, roughing stands of wire-rod mill, work roll of rail mill
CrMo indefinite chilled SG cast iron rolls Section mill, bar mill, intermediate and finishing stands of wire-rod mill
NiCrMo indefinite chilled SG cast iron rolls (I) Section mill, bar mill, intermediate and finishing stands of wire-rod mill
NiCrMo indefinite chilled SG cast iron rolls (II) Section mill, bar mill, intermediate and finishing stands of wire-rod mill
Pearlitic nodular cast iron rolls (I) roughing stands of bar mill and wire-rod mill
Pearlitic nodular cast iron rolls (II) roughing stands of bar mill and wire-rod mill
Pearlitic nodular cast iron rolls (III) roughing stands of bar mill and wire-rod mill
bainitic nodular cast iron rolls (I) roughing stands of bar mill and wire-rod mill
bainitic nodular cast iron rolls (II) roughing stands of bar mill and wire-rod mill



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