Red Brick calculation program
Round steel bar, grade SR24, conforming to Thai Industrial Standard (TIS), smooth surface.
round steel bars or Round Bar (RB) Hot-rolled steel bars are circular steel sections with a smooth, even surface throughout their length, without ribs or fins like deformed steel bars. They are a very important type of reinforcing steel (rebar) in structural work.
Our products are steel grades. SR24 (Standard Round 24) which means steel with a yield strength of not less than 2,400 kg/cm² and certified to the standard. TIS 20-2559 You can be confident that it is "solid steel" with the correct diameter and weight according to the criteria.
Why choose round steel bars from AY Contento?
- High Ductility: The steel is highly flexible, making it suitable for bending and folding to create reinforcing steel cages, bar ties, or hooks without breaking easily in your hand.
- Smooth Surface: The smooth, clean steel surface facilitates and speeds up general work.
- Standard Weight: It's not lightweight or undersized steel, helping contractors accurately calculate weight and costs, preventing specification fraud.
Applications
- Stirrups: Used to bend into a square shape to wrap around reinforcing steel bars in columns and beams (RB6 and RB9 sizes are commonly used).
- Minor Reinforcement: Used as reinforcement in small concrete pavements, sidewalks, or brick walls.
- Architectural works: Used for making wrought iron window grills, fences, balcony railings, or loft-style furniture.
- General work: Steel wire ties for door and window frames, ground-mounted door bolts.
Standard Size and Weight Chart
(Standard length 10 meters)
Name (size) | Diameter (mm) | Weight (kg/piece), Length 10 m. | General use |
RB 6 (2/8 inch) | 6 | 2.22 | Making reinforcing steel for columns and beams in a typical house. |
RB 9 (3/8 inch) | 9 | 4.99 | Making steel stirrups for heavy-duty beams / reinforcing steel for floors. |
RB 12 (1/4 inch) | 12 | 8.88 | Reinforcing steel bars for concrete columns / Small road construction projects |
RB 15 (5/8 inch) | 15 | 13.87 | Specialized structural work |
RB 19 (6/8 inch) | 19 | 22.26 | Bolt work / Machining work |
RB 25 (1 inch) | 25 | 38.53 | Mechanical work |
(Note: RB6 and RB9 are the most commonly used sizes in residential building construction.)
Frequently Asked Questions (FAQ)
- Round steel bars (RB): Dark gray surface, not perfectly smooth (has sparks from heat pressing). Size may vary slightly according to Thai Industrial Standards (TIS). Focus on quality work. Construction/Concrete
- Bright steel shaft: Smooth, shiny silver finish. Precise dimensions. Emphasis on quality craftsmanship. Turned/Machinery/Furniture with exposed surface (More expensive than RB)
No. According to engineering standards, the steel reinforcement in the column should be... Deweloped Bar (DB) Sizes of 12 mm and above are recommended for better compressive and tensile strength. RB6 is only suitable for use as reinforcement cages around columns.
""Looking for full-length RB6 and RB9 reinforcing bars? No deception?""
Order high-quality, certified Thai Industrial Standard (TIS) reinforcing steel bars and have them delivered to your construction site today.
🟢 Line: @aycon
📞 Tel: 083-0243351
🚚 Delivery service: Pickup trucks/6-wheel trucks/trailers nationwide.
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