ASTM A252 steel pipe is a common cylindrical pipe pile material covering both welded and seamless types for steel pipe piles where a steel cylinder is used as a permanent load-carrying member or as a shell to form a cast-in-place concrete pile.
Grade 3 is the highest performance grade among the three grades of A252, with a minimum yield strength of 310MPa [45,000 psi] and a minimum tensile strength of 455MPa [66,000 psi]. Compared to other grades, Grade 3 is more suitable for structures subject to heavy loads or in more demanding environments, and is often used in the construction of foundations for large bridges, high-rise buildings, or offshore platforms.
A252 is divided into three grades to cope with different usage environments.
Grade 1, Grade 2, and Grade 3.
Gradual increase in mechanical properties.
Grade 1 is mainly used in applications where the soil quality is good and the load-bearing requirements are not particularly high. Examples include lightweight structural foundations for residential or commercial buildings, or small bridges that do not require significant loads.
Grade 2 is suitable for applications with poor soil conditions or high load-bearing requirements. For example, moderately loaded bridges, large commercial buildings, or the infrastructure of public facilities. It can also be used in areas with high water tables, such as rivers and lakes, where strong deformation resistance is required.
Grade 3 is used for heavy-duty requirements in extreme conditions, such as large bridges, heavy equipment foundations, or deep foundation work for high-rise buildings. In addition, for special geological conditions, such as very soft or unstable soils, Grade 3 offers the highest load-carrying capacity and stability.
Established in 2014, Botop Steel is a leading carbon steel pipe supplier in Northern China, known for producing high-quality welded and seamless steel pipes.
All of our products meet the strict ASTM A252 standards, ensuring optimal performance under extreme conditions.
We also offer a full range of fittings and flanges to meet the needs of a variety of piping projects.
When you choose Botop Steel, you choose excellence and reliability.
ASTM A252 Pipe Pile Pipes can be categorized into two main manufacturing processes: seamless and welded.
In the welding process, it can be further subdivided into ERW, EFW, and SAW.
SAW can be categorized into LSAW (SAWL) and SSAW (HSAW) depending on the direction of the weld.
Because SAW are usually welded using a double-sided submerged arc welding technique, they are also often referred to as DSAW.
These various manufacturing methods allow ASTM A252 tubular pile pipe to meet a wide variety of engineering needs.
The following is the production flow chart of spiral steel pipe (SSAW):
SSAW steel pipe is ideal for the manufacture of large-diameter steel pipe and can be produced in diameters of up to 3,500mm. Not only can it be manufactured in very long lengths, ideal for large structures, but SSAW steel pipe is also cheaper compared to LSAW and SMLS steel pipe.
Botop Steel can offer the following size ranges of steel tubes:
Phosphorus content not to exceed 0.050%.
The chemical composition requirements for ASTM A252 are relatively simple compared to other pipe standards for other applications because when the pipe is used as a pipe pile, it is primarily structural in nature. It is sufficient that the steel pipe can withstand the required loads and environmental conditions. This simplified chemistry helps to optimize cost and productivity while meeting the basic needs of structural safety and durability.
A Table 2 gives the computed minimum values:
Where the specified nominal wall thickness is intermediate to those shown above, the minimum elongation value shall be determined as follows:
Grade 3: E = 32t + 10.00 [E = 1.25t + 10.00]
E: elongation in 2 in. [50.8 mm], %;
t: specified nominal wall thickness, in. [mm].
For pipe pile sizes not listed in the pipe weight chart, the weight per unit length shall be calculated as follows:
W = 10.69(D - t)t [ W = 0.0246615(D - t)t ]
W = weight per unit length, lb/ft [kg/m].
D = specified outside diameter, in. [mm],
t = specified nominal wall thickness, in. [mm].
Our company offers a wide range of coatings including Paint, varnish, galvanized, zinc-rich epoxy, 3LPE, coal tar epoxy, etc. to meet the needs of various projects and ensure long-term durability.
When purchasing A252 Pipe Pile Tubing, the following information should be provided to facilitate the supplier's ability to accurately meet your specific needs and minimize subsequent modifications and potential delays.
1 Quantity (feet or number of lengths),
2 Name of material (steel pipe piles),
3 Methods of manufacture (seamless or welded),
4 Grade (1, 2, or 3),
5 Size (outside diameter and nominal wall thickness),
6 Lengths (single random, double random, or uniform),
7 End finish,
8 ASTM specification designation and year of issue.
