A ribbed steel bar is a type of deformed, high strength steel that is manufactured by controlled cold twisting of hot rolled bar. This bar has projections on its surface known as ribs hence the name Ribbed Steel Bar. They vary in sizes, ranging from 8 mm to 32 mm wide. These bars possess certain characteristics that make them preferable to twisted bars in reinforcement of concrete. These characteristics range from their flexibility to their cost saving nature.
Grade 40
Mechanical Properties
- Yield Strength Min: 300 Mpa
- Tensile Strength: 400 Mpa
- Elongation: min 16%
Grade 60
Mechanical Properties
- Yield Strength min: 420Mpa
- Tensile Strength: 620 Mpa
- Elongation: min 14%
Grade 75
Mechanical Properties
- Yield Strength min: 500Mpa
- Tensile Strength: 550 Mpa
- Elongation: min 14%
Chemical Property
The major elements must be considered in production of reinforcement bar are the following
- Carbon ————–— 0.18% – 0.32%
- Manganese ——–– 0.6% -1.5%
- Silicon —————— ≤ 0.6%
- Phosphorous ——- < 0.06%
- Sulfur —————— < 0.06%
