ASTM A252 Steel Pipe Pile Introduction
ASTM A252 steel pipe pile is a circular steel pipe produced according to ASTM A252 standard and is commonly used as a foundation load-bearing member in civil engineering.
ASTM A252 Steel Pipe Pile Advantages
High Dimensional Precision
These steel pipe piles are produced using a fully automated steel coil forming machine, ensuring diameter tolerances of ±1% and wall thickness deviations of less than ±10%. This ensures precise alignment with connectors, flanges, and adjacent pile bodies during construction.
High Welding Quality
ASTM A252 steel pipe piles adopt the submerged arc welding process, fully melting the weld metal and fusing it completely with the base material, enabling the weld strength to reach more than 95% of the base material. Even under long-term pressure from the superstructure, the weld will not crack.
High Strength
ASTM A252 steel pipe piles are made from high-quality carbon steel that meets standards, achieving a tensile strength exceeding 415 MPa. They can withstand significant pressure for extended periods without deformation in projects such as bridges, ports, and deep foundation pits.
ASTM A252 / A252M - 19 Welded and Seamless Steel Pipe Piles
ASTM A252 covers nominal (average) wall steel pipe piles of cylindrical shape and applies to pipe piles in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast-in-place concrete piles. Pipe piles are produced as both welded and seamless products.
Grade: 1, 2, 3
OD: NPS 6" - 56" (168.3 - 1422mm)
WT: 0.134" - 2" (3.40 - 50.8mm)
Length: 6 - 32m
ASTM A252 Steel Pipe Pile Chemical Composition
|
Composition, % |
C, max |
Si, max |
Mn, max |
P, max |
S, max |
|
Grade 1 |
0.26 |
0.45 |
1.6 |
0.05 |
0.03 |
|
Grade 2 |
0.26 |
0.45 |
1.6 |
0.05 |
0.03 |
|
Grade 3 |
0.26 |
0.45 |
1.6 |
0.05 |
0.03 |
The steel shall contain no more than 0.050% phosphorous.
ASTM A252 Piling Pipe Mechanical properties
|
Mechanical Property |
Grade 1 |
Grade 2 |
Grade 3 |
|
Minimum Yield strength ReH MPa |
205 |
240 |
310 |
|
Tensile strength Rm MPa |
345 |
415 |
455 |
|
Minimum elongation A % |
30 |
25 |
20 |
Testing Requirements for Seamless and Welded A252 Steel Piling Pipe
Tensile Test: Either longitudinal or transverse at the option of the manufacturer.
Hydrostatic Testing: Not specified.
Mechanical Tests:
Number of Tests: One tensile test per 200 lengths.
Permissible Variations for A252 Steel Piling Pipe
Wall thickness: Not more than 12.5% under the nominal wall thickness specified.
Weights per foot: The weight of any individual length of pipe shall not vary more than 15% over or 5% under the weight specified. Each individual length shall be weighed separately.
Outside diameter: Shall not vary more than plus or minus 1% from the diameter specified.
Lengths of A252 Steel Piling Pipe
LINKUN A252 steel piling pipe may be ordered in single or double random lengths or in uniform lengths.
Single random – 16' – 25' inclusive
Double random – Over 25' with a minimum average of 35'
Uniform – Plus or minus 1" on length specified
Marking Requirements
Rolled, die-stamped, or paint-stenciled (manufacturer's option).
Manufacturer's name, brand, or trademark
Heat number
Method of pipe manufacture
Size, weight, length
Wall thickness
ASTM A252 and steel grade
Hainan Yuan Steel Pipe Supply Chain Co., Ltd is the top steel pipe stockist and distributor in China. Generally we hold steel pipe stock of at least 15000 tons per months with a sales about 30000 tons per month. In view of the special steel trade system in China, we are a major player in Chinese Steel market.
Your specific inquiry of ASTM A252 Steel Pipes is highly appreciated.
FAQ
Q: What is the typical lead time for ASTM A252 steel pipe piles?
A: Typically, standard stock specifications can be shipped within 7–10 business days. Custom specifications or special surface treatments require a production lead time of 15–30 days, depending on order quantity and process requirements.
Q: Do ASTM A252 steel pipe piles come with third-party inspection reports?
A: We can provide third-party inspection reports from sources such as SGS and BV upon request, along with material certification, chemical composition analysis, and mechanical property test reports that comply with the ASTM A252 standard.
Q: What pre-shipment testing is performed?
A: Each steel pipe pile undergoes dimensional measurement, visual inspection, weld non-destructive testing, and random mechanical property testing to ensure that all shipped products meet the ASTM A252 standard.
Q: What is the packaging method?
A: The steel pipe piles are coated with anti-rust oil and strapped with steel straps. Waterproof cloth or wooden supports can be added to secure the piles, making them suitable for long-distance transportation.
Q: What payment methods are available?
A: Regular orders can be paid by common international payment methods such as T/T and L/C. Large orders can be paid in installments. Specific payment terms can be agreed upon in the contract.
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