Acicular Nodular Iron (SGA) Rings for Kocks Mill

Min.Order: 2
Product origin: Beijing, China
Infringement complaint: complaintComplaint
US$ -1

Description
We can provide the full ranges of rolls for the Bar & Wire mills, covering roughing rolls, intermediate rolls and finishing rolls.
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 rollsCSiMnPSNiCrMoMg
CrMo semi-chilled SG cast iron rolls2.9/3.60.8/2.50.4/1.2≤0.25≤0.03 0.2/0.60.2/0.6>0.04
CrMo indefinite chilled SG cast iron rolls2.9/3.60.8/2.50.4/1.2≤0.25≤0.03 0.2/0.60.2/0.6>0.04
NiCrMo indefinite chilled SG cast iron rolls (I)2.9/3.60.8/2.50.4/1.2≤0.25≤0.030.5/1.00.2/0.60.2/0.6>0.04
NiCrMo indefinite chilled SG cast iron rolls (II)2.9/3.60.8/2.50.4/1.2≤0.25≤0.031.0/2.00.3/1.20.2/0.8>0.04
Pearlitic nodular cast iron rolls (I)2.9/3.61.4/2.20.4/1.0≤0.15≤0.031.5/2.00.1/0.60.2/0.8>0.04
Pearlitic nodular cast iron rolls (II)2.9/3.61.2/2.00.4/1.0≤0.15≤0.032.0/2.50.2/1.00.2/0.8>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 0.2/1.20.2/0.8 >0.04
 bainitic nodular cast iron rolls (I) 2.9/3.6 1.2/2.2 0.2/0.8 ≤0.10 ≤0.03 3.0/3.50.2/1.0 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 rollsBarrel hardness (HSD)Neck hardness (HSD)Tensile strength (MPa)
CrMo semi-chilled SG cast iron rolls40~5532~50>300
CrMo indefinite chilled SG cast iron rolls55~7035~55>300
NiCrMo indefinite chilled SG cast iron rolls (I)48~7035~55>320
NiCrMo indefinite chilled SG cast iron rolls (II)48~7035~55>320
Pearlitic nodular cast iron rolls (I)45~5535~55>450
Pearlitic nodular cast iron rolls (II)55~6535~55>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) 60~8032~45  >350

 Microstructure 
Designation of rollsBarrel hardness (HSD)Neck hardness (HSD)Tensile strength (MPa)
CrMo semi-chilled SG cast iron rolls40~5532~50>300
CrMo indefinite chilled SG cast iron rolls55~7035~55>300
NiCrMo indefinite chilled SG cast iron rolls (I)48~7035~55>320
NiCrMo indefinite chilled SG cast iron rolls (II)48~7035~55>320
Pearlitic nodular cast iron rolls (I)45~5535~55>450
Pearlitic nodular cast iron rolls (II)55~6535~55>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) 60~8032~45  >350

 Application
Designation of rollsApplication
CrMo semi-chilled SG cast iron rollsSection mill, bar mill, roughing stands of wire-rod mill, work roll of rail mill
CrMo indefinite chilled SG cast iron rollsSection 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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