What is ASTM A252 Steel pipe piles

ASTM A252 is the standard specification for welded and seamless steel pipe piles. It covers the nominal wall thickness of cylinder shape steel pipe, rectangular pipe is not included. These round pipes are used for piling purposes, playing a permanent role in load carrying and bearing the pressure. Furthermore, to act as a tank shell to fill with the concrete piles at the sight of the project.

The manufacturing process of ASTM A252 Steel pipe piles

Steel coils→Ray material test → Delivery straightening → Plate cutting and welding  → circle shear edge milling  → Forming  → inside auto-welding  → Outside auto-welding  → Online ultrasonic inspection  → Fixed length cutting  → Visual inspection for outside seam  → Visual inspection for inside seam  → X-ray inspection for welding seam  → Even end and end bevel  → Hydrostatic test  → Ultrasonic inspection → Final product inspection  → Marking  → Store up

Application of ASTM A252 Steel pipe piles

● Bridge foundations 

● Building foundations 

● Harbor structures 

● River structures 

● Others (landslide prevention piles, etc.)

Material of ASTM A252 Steel pipe piles

• Test:  Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield, strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.

• Mill Test Certificate: EN 10204/3.1B 

• Third party inspection: SGS, BV, Lloyds etc.

Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Antirust oil, Protective Coatings (Coal Tar Epoxy; Fusion Bond Epoxy, 3-layers PE)

Coating Standard:

• ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for ductile-iron Pipe and Fittings for water

• DIN 30670 Polyethylene coatings of steel and fittings

Pipe piling generally manufactured using seamless, resistance welding, fusion welding, flash welding with seams being longitudinal, helical. It also specifies the tensile requirements, minimum values and the common size and weight based on the values.

Advantages of steel pipe pile

The biggest advantage of steel pipe pile is impressive tough support for underground foundations. Specially When the structure has to be supported for a large load, there is a mandatory requirement for the foundation to be deep and strong. Hence, it is crucial to have the right structural support in place for deep foundations.

There are plenty of options available for structural support. However, the best recommended would be steel pile pipe, owing to the high level of customization that they offer. They can be customized based on the specific requirement and the costs involved are also minimal.

Types of ASTM A252 Steel pipe piles

Anchor pile
Bearing pile
Bridge pile
Building pile
Foundation pile
Marine and dock pile
Micro pile
Screw pile
steel pipe pilings

Application of steel piling pipe

Steel piling pipes are used as deep foundation piles for power stations, high-rise buildings, civil engineering construction, bridges, marine structures, harbors, and other industries & applications.

Application of pipe piles to reinforce the head of cast cast-in-place concrete pile.