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| Deformed bar is the common name of hot-rolled ribbed rebar, which is mainly used for the skeleton of reinforced concrete building components. It is produced by a hot-rolled process and has two longitudinal and a number of transverse ribs on its surface to strengthen its bond with concrete. Rebar is widely used in the construction of houses, Bridges, roads and other civil engineering, and it’s one of the most important manufactured products in the entire steel industry. High-carbon high-speed steel roll (HSS roll) is the hot-roll material with the widest application prospect.High-speed steel rolls are widely used in steel rolling in the fields of plates, sections, bars, and wires, not only for working rolls but also for supporting rolls. | |||||||||
◆◇ Unique Features
High V, W, Cr, Mo, Nb and other alloy elements. Carbide types: MC and M2C with high hardness and good abrasion resistance.
Excellet thermal stability, high hardness and good wear resistance.
High expansion coefficient and good thermal conductivity, more conducive to control
Forming oxide film during rolling process, improving roll wear resistance significantly
Super high strength of the roll core (DCI)
◆◇ Specification
| Type | Normal | Enchanced | High Strength |
| Roll Specification | Ø280 - Ø850 mm | ||
| Density | 7.6 g/cm³ | 7.8 g/cm³ | 8 g/cm³ |
| Casting | Centrifugal Casting | ||
| Heat Treatment | HBW Patented | ||
| Hardness | General: 82-89HSD Different range based on stands | ||
| Hardness Drop | ≤3HSD | ||
| Rolling Temperature | 780℃-1100℃ | ||
| Pass Life | 4-5 times than CI Rolls | 1.3 tims than HSS Normal | 1.5 tims than HSS Normal |
| Dressing | 1.0-1.5mm | ||
| Use Periods | 8-10 Cycles | ||
| Application | Good Thermal Stability | ||
| High Hardness and High Abrasion performance,long working life | |||
| No scratch and burrs | |||
| Accept customize and lettering | |||
◆◇ Chemical Analysis
Material | HBW Patented Chemical Composition (%) | |||||||||||
C | Si | Mn | Cr | Ni | Mo | V | W | P & S | Nb | Co | Others | |
HSS (Alloy composition changes based on different grades) | 1.5 ~ 2.10 | 0.3 ~ 1.0 | 0.30 ~ 0.70 | 3.00 ~ 6.00 | 0.50 ~ 1.50 | 3.0 ~ 7.0 | 2.0 ~ 8.0 | 1.0 ~ 8.0 | ≤0.03 | Depends on HSS Grade | ||
◆◇ Physical Properties
| Properties | Barrel | Core | |
| Tensile Strength | ≥700MPa | ≥450MPa | |
| Compressive Strength | ≥2500MPa | -- | |
◆◇ Unique Features
High V, W, Cr, Mo, Nb and other alloy elements. Carbide types: MC and M2C with high hardness and good abrasion resistance.
Excellet thermal stability, high hardness and good wear resistance.
High expansion coefficient and good thermal conductivity, more conducive to control
Forming oxide film during rolling process, improving roll wear resistance significantly
Super high strength of the roll core (DCI)
◆◇ Specification
| Type | Normal | Enchanced | High Strength |
| Roll Specification | Ø280 - Ø850 mm | ||
| Density | 7.6 g/cm³ | 7.8 g/cm³ | 8 g/cm³ |
| Casting | Centrifugal Casting | ||
| Heat Treatment | HBW Patented | ||
| Hardness | General: 82-89HSD Different range based on stands | ||
| Hardness Drop | ≤3HSD | ||
| Rolling Temperature | 780℃-1100℃ | ||
| Pass Life | 4-5 times than CI Rolls | 1.3 tims than HSS Normal | 1.5 tims than HSS Normal |
| Dressing | 1.0-1.5mm | ||
| Use Periods | 8-10 Cycles | ||
| Application | Good Thermal Stability | ||
| High Hardness and High Abrasion performance,long working life | |||
| No scratch and burrs | |||
| Accept customize and lettering | |||
◆◇ Chemical Analysis
Material | HBW Patented Chemical Composition (%) | |||||||||||
C | Si | Mn | Cr | Ni | Mo | V | W | P & S | Nb | Co | Others | |
HSS (Alloy composition changes based on different grades) | 1.5 ~ 2.10 | 0.3 ~ 1.0 | 0.30 ~ 0.70 | 3.00 ~ 6.00 | 0.50 ~ 1.50 | 3.0 ~ 7.0 | 2.0 ~ 8.0 | 1.0 ~ 8.0 | ≤0.03 | Depends on HSS Grade | ||
◆◇ Physical Properties
| Properties | Barrel | Core | |
| Tensile Strength | ≥700MPa | ≥450MPa | |
| Compressive Strength | ≥2500MPa | -- | |