BS 4360 Grade 43A Hot Rolled Structural Steel Pipes/Tubes
1. Product Description:
BS 4360 Grade 43A Hot Rolled Structural Steel Pipes/Tubes are engineered for structural applications that demand robustness and reliability. These pipes and tubes are manufactured from carbon steel that has been hot rolled, ensuring a uniform surface finish and improved mechanical properties. The Grade 43A specification denotes a particular level of strength and ductility, making these tubes suitable for a variety of load-bearing applications.
2. Product Features:
- Hot Rolled Construction: Provides a uniform surface and enhanced mechanical strength.
- High Strength: Offers a balance of tensile and yield strength for structural use.
- Ductility: Capable of withstanding deformation without breaking.
- Weldability: Suitable for various welding processes, allowing for easy integration into projects.
- Corrosion Resistance: Offers resistance to atmospheric corrosion for long-term use.
3. Product Parameters:
Parameter | Description |
Standard | BS 4360 Grade 43A |
Material | Carbon Steel (Hot Rolled) |
Grade | 43A |
Size Range | Various diameters and wall thicknesses as per BS 4360 standards |
Length | Standard lengths, customizable upon request |
Ends | Plain ends, beveled ends, threaded, or socket-weld ends |
Surface Treatment | As-rolled, annealed, or normalized |
4. Mechanical Properties:
Property | Typical Requirements |
Tensile Strength | ≥430 MPa (62,000 psi) |
Yield Strength | ≥275 MPa (40,000 psi) |
Elongation | ≥22% in 80 mm (3.1 in) or 4D, whichever is greater |
Hardness | Varies depending on heat treatment |
5. Chemical Composition:
Element | Typical Range (%) |
Carbon | 0.38 - 0.45 |
Manganese | 0.40 - 0.70 |
Phosphorus | ≤0.045 |
Sulfur | ≤0.045 |
Silicon | ≤0.35 |
6. Product Applications:
- Structural Framing: Utilized in building and construction for structural framing.
- Mechanical Equipment: Ideal for manufacturing equipment that requires a strong and stable framework.
- Piping Systems: Suitable for use in industrial piping systems for various fluids.
- Infrastructure Projects: Employed in bridges, highways, and other large-scale infrastructure projects.
- Reinforcement: Used for reinforcement in concrete structures and as support columns.


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