Tubing
Structural tubing (square and rectangular), round bar, and mechanical tube in special steels offer higher strength, rigidity, and durability—ideal for demanding structures and industrial components.
Round Mechanical Tube ASTM A53 Grade B (Seamless / Welded)
ASTM A53 Grade B mechanical tube is a carbon steel pipe for conveyance and mechanical applications, manufactured either seamless or welded.
- Material: ASTM A53 carbon steel.
- Section: round.
- Types: seamless (SML) and welded (ERW).
- Used for fluid conveyance, structures, and machining.
- Optional coatings available (galvanized).
- Versatile for structural and mechanical use.
- Adequate strength for pressure and load.
- Available in galvanized version for corrosion resistance.
- Meets strict manufacturing specifications.
Pressurized fluid conveyance.
Steel structures.
Mechanical components and supports.
- General industrial applications.
Element | Composition (%) |
Carbon (C) | 0.30 máx. |
Manganese (Mn) | 1.20 máx. |
Phosphorus (P) | 0.05 máx. |
Sulfur (S) | 0.045 máx. |
Copper (Cu) | 0.40 máx. |
Property | Typical value |
Yield strength | 240 MPa |
Tensile strength | 415 MPa |
Elongation | 20% |
Hydrostatic test pressure | ≥ 5 MPa |
Dimensions: 1/2" – 26" nominal diameter.
Wall thicknesses by Schedule (SCH 10 – SCH 80).
Standard lengths: 6 – 12 m.
Manufacturing standards: ASTM A53/A53M, with defined dimensional tolerances.
Equivalents: API 5L Grade B (for conveyance), EN 10255.
In structural applications, it may be compared to ASTM A500.
ASTM A53 Grade B mechanical tube is a reliable option for both conveyance and structural uses. The choice between seamless and welded will depend on the final use and on pressure and/or strength requirements.