Deformed steel bars (reinforcing bars) conforming to Thai Industrial Standard (TIS), from a large factory, provide strong adhesion and high tensile strength.
Deformed steel bars or Deformed Bar (DB) It is a primary material in civil engineering, manufactured through a hot-rolling process. Ribs and fins are added to the steel surface to increase the contact area, resulting in stronger bonding with the concrete. This provides better protection against slippage and cracking of structures compared to smooth round steel bars.
Our products are... “"Big Steel Mill"” (EF/EAF) that meets the standards. TIS 24-2016 You can be confident in the chemical composition, mechanical properties, and weight that meet the criteria; it's not lightweight or small-grade (IF) steel which may have brittleness issues.
Why choose reinforcing steel bars from AY Contento?
- High Tensile Strength: There are grades. SD40 (Tensile strength at yield point not less than 4,000 ksc) and SD50 (Extra high tensile strength) Available according to engineer's specifications.
- Superior Bonding: The sharp, consistent chevron pattern helps to efficiently transfer the weight from the concrete to the steel.
- Ductility (Toughness): It can be bent to standard specifications without cracking, making it suitable for reinforcing steel in columns and beams.
- Full Weight: Weighing is accurate according to standard charts, eliminating worries about steel specifications being lacking on site.
Applications
- Building works: Bored piles, footings, columns, beams, concrete slabs.
- Civil engineering works: Reinforced concrete roads, bridges, dams, tunnels.
- Special structural work: Skyscrapers and heavy industrial plants are susceptible to seismic vibrations.
Standard Size and Weight Chart
(Standard lengths are 10 meters and 12 meters)
Name (size) | Diameter (mm) | Weight (kg/piece), Length 10 m. | Weight (kg/piece), Length 12 m. |
DB 10 | 10 | 6.17 | 7.40 |
DB 12 | 12 | 8.88 | 10.66 |
DB 16 | 16 | 15.78 | 18.94 |
DB 20 | 20 | 24.66 | 29.59 |
DB 25 | 25 | 38.53 | 46.24 |
DB 28 | 28 | 48.34 | 58.01 |
DB 32 | 32 | 63.13 | 75.76 |
(Note: Weight may have a tolerance as specified by the Thai Industrial Standards Institute (TIS).)
Frequently Asked Questions (FAQ)
The number after SD is the value. Yield Strength The unit is kg/cm² (ksc).
- SD30: Capable of withstanding a force of 3,000 ksc (becoming difficult to find in the market; round steel is commonly used as a substitute).
- SD40: Can withstand a force of 4,000 ksc. (Most popular) Used in general construction work.
- SD50: Capable of withstanding a load of 5,000 ksc, it is used in high-rise buildings or special structures to reduce the cross-sectional size of columns.
The difference lies in the manufacturing process.
- Large Theater (EF/EAF): Forged from high-quality scrap metal or porous steel, with precise control of the composition, the steel is ductile and easily bent.
- Small factory (IF): General scrap metal is often melted down, and may contain more impurities, resulting in more brittle steel (but if it meets Thai Industrial Standards (TIS), it is still usable according to standards).
""Need SD40 reinforcing bars for your project, or need a price quote from a large factory?""
Check daily rates with AY Contento. Trailer delivery to your job site is available.
🟢 Line: @aycon
📞 Tel: 083-0243351
🚚 Delivery service: Bangkok, its surrounding areas, and throughout the country.
Red Brick calculation program

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