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What is ASTM A252/A252M Pipe?

At UNIASEN, we offer you the robust and reliable ASTM A252/A252M standardized Steel Pipe. This product is a testament to our commitment to quality and innovation. These steel pipes are designed to serve as permanent load-carrying members or as shells for cast-in-place concrete piles. They are cylindrical with a nominal wall, crafted to withstand the test of time and deliver exceptional performance under various conditions. Whether you are in the construction industry, oil and gas sector, or infrastructure development, our ASTM A252/A252M steel pipes are your ideal choice for durability and strength. With seamless construction, electric resistance welding, flash welding, or fusion welding, these pipes are designed to meet your most demanding requirements. They are available in longitudinal, helical-butt, or helical-lap seams, providing you with a range of options to suit your specific needs.


Our ASTM A252/A252M steel pipes come with a comprehensive specification that includes dimensions, production procedures, steel grades, surface coatings, end types, joint methods, and machining services. The dimensions are designed to meet international standards, ensuring compatibility with your projects. The production procedures adhere to the highest quality standards, guaranteeing the durability and reliability of our pipes. We offer various steel grades to cater to your specific requirements. The surface coatings are designed to resist corrosion and enhance the lifespan of the pipes. The end types and joint methods are varied, providing you with flexibility in your construction or manufacturing processes. Our machining services are tailored to meet your specific needs, ensuring you get the most out of our products.

  • Standard: ASTM A252
  • Steel Grade: Gr.1, Gr.2, Gr.3
  • Dimensions: 6” – 56”

                         168.3mm – 1422mm


  • Thickness: 0.134”- 1”

                       3.40mm – 25.4mm

  • Pipe End: Plain, Bevelled
  • Process: Open-hearth, Basic-oxygen, or Electric-furnace
  • Manufacturing: SMLS, ERW, LSAW, SSAW
  • Surface Coating: Varnishing, Oiling, Hot Dip Galvanizing


The dimension table of our ASTM A252/A252M steel pipes is meticulously designed to provide you with a clear understanding of the product. It includes details such as the outer diameter, wall thickness, length, and weight per unit length. Each dimension is carefully calibrated to ensure optimal performance and compatibility with your projects. Whether you need pipes for large-scale construction or small-scale manufacturing, our dimension table will guide you in selecting the right product. The weight per unit length values are also provided, allowing you to plan your logistics and handling processes effectively.

Pipe Size
Common Sizes
8 5/8219.12.773.584.374.785.165.566.357.047.928.188.749.5311.1312.7
10 3/4273.12.773.053.43.583.814.174.374.554.785.165.565.846.357.097.88.749.2711.1312.7
12 3/4323.92.773.403.583.814.174.374.554.785.165.565.846.357.147.938.388.749.5311.1312.7

Chemical Requirement

Our ASTM A252/A252M steel pipes meet stringent chemical requirements to ensure their durability and performance. The chemical composition of the steel is carefully controlled during the manufacturing process. This includes the levels of carbon, manganese, phosphorus, sulfur, and other elements. These elements are balanced to provide the steel with its unique properties, such as strength, ductility, and resistance to corrosion. By adhering to these chemical requirements, we ensure that our pipes deliver consistent performance, regardless of the environment in which they are used.

7.  Chemical Composition
7. 1  The steel shall contain no more than 0.050 % phosphorous.

Mechanical Requirement

The mechanical requirements of our ASTM A252/A252M steel pipes are designed to ensure their durability and reliability. This includes the tensile strength, yield strength, and elongation values. These values are carefully controlled during the manufacturing process to ensure that the pipes can withstand the stresses and strains of their intended applications. Whether you are using the pipes for load-bearing structures or as shells for concrete piles, you can be confident in their ability to perform under pressure.

A252/A252M − 19
Tensile Requirements
Tensile strength, min, psi [MPa]50 000 [345]60 000 [415]66 000 [455]
Yield point or yield strength, min, psi [MPa]30 000 [205]35 000 [240]45 000 [310]
Basic minimum elongation for nominal wall thicknesses 5⁄16  in. [7.9 mm] or more:
Elongation in 8 in. [203.2 mm], min, %1814
Elongation in 2 in. [50.8 mm], min, %302520
For nominal wall thicknesses less than 5⁄16  in. [7.9 mm], the deduction from
the basic minimum elongation in 2 in. [50.8 mm] for each 1⁄32  – in. [0.8 mm]decrease in nominal wall thickness below 5⁄16  in. [7.9 mm], in percentage points
A Table 2 gives the computed minimum values:

Steel Grades

We offer ASTM A252/A252M steel pipes in various steel grades to cater to your specific needs. Each grade offers unique properties, such as different levels of strength, ductility, and resistance to corrosion. Whether you need pipes for a high-stress environment or a corrosive environment, we have a grade that will meet your requirements. Our team of experts can guide you in selecting the right grade for your project, ensuring you get the most out of our products.

Production Tolerance

At UNIASEN, we understand the importance of precision. That’s why our ASTM A252/A252M steel pipes are produced with strict tolerances. This includes tolerances for dimensions, weight, straightness, and end finish. By controlling these factors, we ensure that our pipes meet your exact specifications and deliver consistent performance. Whether you are constructing a skyscraper or laying a pipeline, you can rely on our pipes to fit perfectly and perform reliably.

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