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A3 rebar

A3 rebar, also known as hardened rebar, is a type of deformed steel reinforcement characterized by its complex helical ribs. It falls into the category of deformed rebar with a relatively moderate hardness. The deformations on this rebar take the form of helical twists oriented in an eight-shaped pattern relative to the longitudinal axis. A3 rebar exhibits greater strength compared to A1 and A2, making it suitable for primary use as the main reinforcement in structures, including longitudinal bars in beams and columns.

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A3 rebar
A3 rebar

Description

Specifications of A3 Rebar:

  • Tensile Strength: 600 MPa
  • Minimum Allowable Yield: 400 MPa
  • Plastic Elongation: 14%
  • Rebar Shape: Cross and Eight-shaped
  • Hardness: Semi-hard
  • Deformation Type: Helical twists
  • Usage: Construction purposes
  • Dry Rebar Definition: A3 rebar is classified as dry rebar.
  • Welding and Bending: A3 rebar is not flexible like A2 and, therefore, lacks welding and bending capabilities.
  • Resistance Comparison: A3 rebar has lower resistance compared to deformed A4 rebar, with a yield stress of 6000 kg/cm² and an ultimate tensile strength of 4000 kg/cm².

Application of A3 Rebar: A3 rebars are well-known as construction reinforcement and are used as longitudinal reinforcement in concrete pouring and reinforcement of columns, beams, and structural foundations in construction. Due to their brittle nature, A3 rebars are not suitable for use in locations with sharp angles and intense bending requirements.

 

The choice between A2 and A3 deformed rebars depends on specific application requirements, as each type has its own set of characteristics. Generally, the differences between A2 and A3 rebars include the following:

  1. Deformation Shape:
    • A2 Rebar: Features parallel, singular, and 45-degree angled deformations.
    • A3 Rebar: Exhibits helical, eight-shaped, and cross deformations.
  2. Yield Strength:
    • A2 Rebar: Known for its yield strength of 340 in the deformed section.
    • A3 Rebar: Recognized with a deformed section yield strength of 400.
  3. Design Applications:
    • A2 Rebar: Employed in designing transverse rebars.
    • A3 Rebar: Utilized in designing longitudinal rebars.
  4. Flexibility and Brittleness:
    • A2 Rebar: Offers high flexibility.
    • A3 Rebar: Is characterized by its brittle and less flexible nature.
  5. Deformation Pattern:
    • A2 Rebar: Deformations arranged in parallel, singular, and at a 45-degree angle.
    • A3 Rebar: Deformations arranged in a helical, eight-shaped, and cross pattern.

In summary, the selection between A2 and A3 rebars depends on specific project requirements, taking into consideration factors such as deformation shape, yield strength, design applications, flexibility, and deformation pattern.

1 review for A3 rebar

  1. aboolfazl –

    For price inquiries, contact +989127482083

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