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 rollProperties
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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