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| Classification | Roll Body Diameter(mm) | Grade | Roller Body Hardness | Depth of Hardening Zone (mm) | Noxious Element | Noxious Element |
| Cold-rolling roller and roller blank | working roller 210-665mm middle roller 300-700mm backup roller 400-750mm smoothing roller 400-850 | 9Cr2,9Cr2Mo,9Cr2W, 9SiCr,86CrMoV7,MC3A,MC3B, MC5, 9Cr3Mo, 9CrMoV,8CrMoV,8Cr5Mo2SiV | roller body 90-96HS hmegeneity ±1.5HS roller neck 30-60HS | Cr2 series 13-16 Cr3 series 20-30 Cr5 series 30-40 | H≤2PPm O≤50PPm N≤200PPm S≤0.020% P≤0.020% | structure 1-4 A inclusion≤1.5 B inclusion≤1.5 No crack, shrinkage, flake General porosity ≤3 Genter porosity≤3 Segregation≤3 |
| Hot-rolling roller and roller blank | 400-850mm | 45Cr,55Cr,42CrMo,50CrMo, 60CrMo,60CrNiMo,H13,0CrMnMo,60CrMoV,70Cr3Mo,70Cr3NiMo,50CrNiMoV | roller body 50-75HS hmegeneity ±2.0HS roller neck 30-60HS | Cr series 15-25 CrMo series 20-35 | P≤0.25 S≤0.25 Cu≤0.25 | Crack,shrinkage, flake and bubble without visualization |
| Continous casting roller and roller blank | 180-500mm | Hz102f R73 BCR01 | 20-41HS | N≤200PPm H≤2PPm S,P≥0.020% | δb≥700MPa σs≥600MPa δ5≥20% ψ≥50% a k≥150J/cm2 |
Our Roller and Roller Blank are of good quality and in reasonable price.
