Audited Supplier
GS is typical steel base with free graphite nodules in the structure which give them higher thermal stress resistance and ability to absorb large
elastic deformation. Graphite nodules are formed by modified chemistry and increased Ni and Si content.
Graphitic steels have higher toughness and ductility than Adamite while the hardness remains in the range that ensures the wear resistance of rolls.
They also have good fire crack resistance.
These rolls are suitable for rolling almost any size sections, rails at horizontal stands as well as in the form of sleeves and vertical rolls at universal stands
| MATERIAL | GRADE | CHEMISTRY | BARREL HARDNESS | |||||
| C | Si | Mn | Cr | Ni | Mo | (HSD) | ||
| Graphite Steel (GS) | GS 140 | 1.30-1.50 | 1.30-1.60 | 0.50-1.00 | 0.40-1.00 | 0.20-0.50 | 36-46 | |
| GS 160 | 1.50-1.70 | 0.80-1.50 | 0.60-1.00 | 0.50-1.50 | 0.20-1.00 | 0.20-0.60 | 45-55 | |
| GS190 | 1.80-2.00 | 0.80-1.50 | 0.60-1.00 | 0.50-2.00 | 0.60-2.20 | 0.20-0.80 | 55-65 | |
Seawoo Roll assures high quality products through an extensive system of quality controls. A number of rigid inspections are carried out for each and every step in the process of our production line. Every set of inspection equipment has to go through high accuracy calibration to guarantee effectiveness of inspection data.
• Scrap and other raw materials are verified so that they meet stringent specifications.
• All melting parameters are analyzed.
• Casting parameters are documented.
• Heating parameters are monitored during the heat treatment process.
• Hardness and internal soundness are checked after the heat treatment process has been carried out.
• Dimensions and final hardness results are checked before shipment.
• An examination to detect freedom of surface and internal cracks is carried out before shipment.
• All results are documented in accordance with our Quality Management System.
| LONG PRODUCT (LP) MILL ROLLS | ||
| MILL TYPE | ROLL TYPE | ROLL GRADE |
| BAR MILL | Roughing, Intermediate,Finishing | Cast Steel, Adamite Steel, Nodular lron, HSSTC in ring roll form |
| WIRE ROD MILL | Roughing,intermediate,Finishing, Finishing Block | Cast Steel, Adamite Steel Nodular lron, HSSCemented Carbide |
| SECTION MILL | Breakdown. RoughingIntermediate, Finishing | Cast Steel, Adamite Steel, Graphitic SteelNodular lron |
| HEAVY SECTION MILL | Breakdown,Roughing, Edger,Tandem, UF, UR, Straightening | Cast Steel, Adamite Steel, Graphitic SteelHiCr lron, HiCr Steel, Forged Steel |
| FLAT PRODUCT (FP) MILL ROLLS | ||
| MILL TYPE | ROLL TYPE | ROLL GRADE |
| HSM, Plate | Roughing WR | Special Alloy Cast Steel, HiCrSteel SemiHSS |
| HSM | Roughing & Finishing BUR | Duplex Cast Steel, Forged Stee! |
| HSM | F1-F4, F5-F7 WR | Hi Cr lron, ICDP HSS |
| CSM | Tandem, Reversible,Sendzimir WR | Cr3, Cr4, Cr5 Forged Steel |
| CSM | BUR | Cr3, Cr4, Cr5 Forged Steel/Duplex Cast Steel |
