Specifications
1)Material:Graphitic steel
2)ISO9000-2008
3)Used for section mill universtal mill
4)Max Dia:1500mm
Graphitic cast steel roll
1)feature
Classification of products | Hardness | Strength of roll neck (Mpa) | Main application |
Alloy cast steel roll | 30-55 | ≥700 | Section bllming roll. Plate and strip roughing roll , edger roll |
Cast adamite rol | 35-60 | ≥400 | Edger roll and roughing roll for hot strip mill. Roughing and finishing rolls for section mill |
Graphitic cast steel roll | 35-60 | ≥400 | Roughing roll, intermediate roll and finishing roll for section mill, roughing roll for 2-hi plate and strip mills |
Duplex cast steel backup roll | 50-75 | ≥600 | Backup rolls for cold stip mill. Hot strip mill and medium plate mill |
Duplex HiCr centrifugal cast steel roll | 65-85 | ≥350 | Roughing roll and early finishing roll for hot strip mill |
Duplex centrigugal cast HSS roll | 70-95 | ≥350 | Finishing wouk rolls for cold and hot strip mills, roll sleeve for universal mill |
2)Chemical Composition |
Material Code | Chemical Composition(%) | C | Si | Mn | P | S | Ni | Cr | Mo | AD140 | 1.30~1.50 | 0.30~0.60 | 0.70~1.10 | ≤0.035 | ≤0.030 | 0.20~0.80 | 0.80~1.20 | 0.20~0.60 | AD160 | 1.50~1.70 | 0.30~0.60 | 0.70~1.10 | ≤0.035 | ≤0.030 | 0.20~1.00 | 0.80~1.20 | 0.20~0.60 | AD180 | 1.70~1.90 | 0.30~1.00 | 0.70~1.20 | ≤0.035 | ≤0.030 | 0.60~1.50 | 1.00~1.50 | 0.20~0.80 | AD200 | 1.90~2.10 | 0.30~1.00 | 0.70~1.20 | ≤0.035 | ≤0.030 | 1.00~2.00 | 1.20~2.00 | 0.20~0.80 |
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3)Physical Performance |
Material code | Barrel hardness(HSD) | Tensile Strength( Mpa) | Elongation(%) | Impact toughness(J/cm) | AD140 | 35~45 | ≥590 | ≥1.0 | ≥4 | AD160 | 38~50 | ≥540 | ≥1.0 | ≥4 | AD180 | 42~55 | ≥500 | ≥0.5 | ≥4 | AD200 | 45~60 | ≥450 | ≥0.5 | ≥4 |
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4)Application scope |
---- break-down roll for rail and beam mill ---- Edger roll for universal section mill ---- Adamite roll or high speed steel roll used in the early finishing stands of a hot strip mill ---- Duplex cast steel backup roll for cold and hot strip mill ---- HiCr cast steel roughing roll for hot strip mill |