Coil steel is a steel products manufactured through hot-rolling or cold-rolling processes, then rolled into large coils for ease of transportation and storage. The surface of rolled steel can be either smooth or ribbed, ensuring high strength, flexibility, and excellent load-bearing capacity.
This product is widely applied in construction, mechanical fabrication, steel structure manufacturing, rebar processing, concrete reinforcement, and various other industrial sectors. Thanks to its flexibility and ease of processing and installation, rolled steel coil is an optimal choice for projects that demand high quality and durability.
DIAMETER & UNIT WEIGHT
| Standard TCVN 1651-1:2008 | |||
Nominal Diameter | Cross-Sectional Area (mm²) | Unit Weight (kg/m) | Weight Tolerance (%) |
| D6 | 28,3 | 0,222 | ± 8 |
| D8 | 50,3 | 0,395 | |
CHEMICAL COMPOSITION (%)
| Standard | Steel Grade | CHEMICAL COMPOSITION (%) | |||||
| C | Si | Mn | P | S | Carbon Equivalent | ||
| TCVN 1657-2:2018 (Viet Nam) | CB 240-T | _ | _ | _ | 0.05 max | 0.05 max | _ |
| CB 300-T | _ | _ | _ | 0.05 max | 0.05 max | _ | |
MECHANICAL PROPERTIES
| Standard | Steel Grade | Mechanical Properties | Bendability | |||
| Yield Strength (N/mm², min) | Tensile Strength (N/mm², min) | Elongation (%) | Bending Angle | Mandrel Diameter | ||
| TCVN 1657-2:2018 (Viet Nam) | CB 240-T | 240 min | 380 min | 20 | 180° | 2d (d≤40) |
| CB 300-T | 300 min | 440 min | 16 | 180° | 2d (d≤40) | |
