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0102030405
High-Quality ASTM A252 Steel Pipe Piles from China Suppliers & Factory for Structural Support Applications
Ordering Information
Buyers should specify the following when ordering:
- Quantity (number of pipes or total length)
- Nominal size (outside diameter and wall thickness)
- Length (random or specific)
- Grade (see Steel Grades section)
- End finish (plain, beveled, or special)
- Surface condition (bare or coated)
- Additional testing (if required, e.g., hydrostatic, nondestructive testing)
- ASTM designation and year of standard (e.g., ASTM A252-24)
Steel Grades
Three grades based on yield strength:
| Grade | Min. Yield Strength (ksi) | Min. Yield Strength (MPa) |
|---|---|---|
| Grade 1 | 30 ksi | 205 MPa |
| Grade 2 | 35 ksi | 240 MPa |
| Grade 3 | 45 ksi | 310 MPa |
💡 Note: Higher grades offer increased strength for demanding load conditions.
Manufacturing Process
- Seamless or welded (electric resistance welded, submerged arc welded, etc.)
- Welded pipes must meet specified weld quality standards
Chemical Composition
- Carbon, manganese, phosphorus, sulfur, and other elements must comply with limits specified for each grade
- Heat analysis is required; product analysis may be requested by the buyer
Mechanical Properties
- Tensile and yield strength: As per grade requirements
- Elongation: Minimum percentages specified based on wall thickness
Inspection and Testing Requirements
- Visual inspection: For surface defects, straightness, and workmanship
- Dimensional checks: Outside diameter, wall thickness, and length
- Mechanical tests: Tensile tests (one per lot or as agreed)
- Hydrostatic testing: Optional unless specified by the buyer
- Nondestructive testing (NDT): Optional for weld seams if required
Marking
Each pipe must be marked with:
- Manufacturer's name or trademark
- ASTM A252 grade
- Nominal size
- Heat number or identification
Keywords
Steel pipe piles, foundation support, welded pipe, seamless pipe, structural piles.
Certification
Manufacturer must provide a test report confirming compliance.
Additional Notes
▸ Latest Version: Confirm the current version (e.g., ASTM A252-24) on the ASTM website.
▸ Conformance: Pipes must meet both ASTM A252 and any additional project specifications.
▸ Latest Version: Confirm the current version (e.g., ASTM A252-24) on the ASTM website.
▸ Conformance: Pipes must meet both ASTM A252 and any additional project specifications.
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Frequently Asked Questions (FAQ)
What are the three grades available under ASTM A252?
ASTM A252 defines three grades: Grade 1 (min. yield strength 30 ksi / 205 MPa), Grade 2 (min. yield strength 35 ksi / 240 MPa), and Grade 3 (min. yield strength 45 ksi / 310 MPa). Higher grades are suitable for more demanding structural load conditions.
What manufacturing methods are allowed for ASTM A252 steel pipe piles?
ASTM A252 pipe piles can be manufactured as seamless or welded pipes, including electric resistance welded (ERW) and submerged arc welded (SAW) methods. All welded pipes must comply with the specified weld quality standards.
Is hydrostatic testing mandatory for ASTM A252 pipe piles?
Hydrostatic testing is optional under ASTM A252 unless specifically required by the buyer. Similarly, nondestructive testing (NDT) of weld seams is optional and performed only when requested.
What information must be marked on each ASTM A252 pipe pile?
Each pipe must be clearly marked with the manufacturer's name or trademark, the ASTM A252 grade designation, the nominal size, and the heat number or identification code for full traceability.
What should buyers specify when placing an order for ASTM A252 pipe piles?
Buyers should specify the quantity, nominal size (OD and wall thickness), length, grade, end finish, surface condition (bare or coated), any additional testing requirements, and the applicable ASTM designation and year (e.g., ASTM A252-24).
Does ASTM A252 require a manufacturer's certification or test report?
Yes. The manufacturer must provide a test report confirming compliance with ASTM A252. Additionally, pipes must meet both the ASTM A252 standard and any supplementary project-specific specifications required by the buyer or engineer.