ASTM A252 is a standard specification established by the American Society for Testing and Materials (ASTM) for welded and seamless steel pipe piles. It applies to steel cylindrical pipe piles used as permanent load-bearing structural elements or as shells for cast-in-place concrete piles.
This standard is primarily used in foundation engineering for buildings, bridges, and other structures, providing stable support for these constructions.
Mechanical Properties
| Mechanical Properties | Grade 1 | Grade 2 | Grade 3 |
| Tensile Strength min . psi (MPa) | 50,000 (345) | 60,000 (415) | 66,000 (455) |
| Yield Strength min . psi (MPa) | 30,000 (205) | 35,000 (240) | 45,000 (310) |
Chemical Requirements For A252:
| Chemical Requirements | Phosphorus |
| Seamless and ERW Steel Pipe | Max (%): 0.050 |
Testing Requirements for seamless and welded A252 steel piling pipe
(1) Hydrostatic Testing: Not specified.
(2) Mechanical Tests: Tensile Test: Either longitudinal or transverse at option of manufacturer.
(3) Number of Tests: One tensile test per 200 lengths.
Applications
Bridge Engineering: Serves as main pier pile foundations to support the weight of bridge structures.
High-Rise Buildings: Used for soft soil foundation reinforcement, providing stable support.
Ports & Wharves: Withstands vessel docking impacts and wave erosion, requiring both strength and corrosion resistance.
Hydraulic Engineering: Includes dam reinforcement and hydropower station foundation construction.
GNEE A252 pile pipe for sale
