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A252 Seamless&Welded Pipe Piles
ASTM A252 is the standard specification for nominal-wall cylindrical steel pipe piles, where the cylinder acts as a permanent load-bearing member or shell to form a cast-in-place concrete pile. The ASTM A252 specification has three grades: Grade 1, Grade 2, and Grade 3, of which Grade 2 and Grade 3 are commonly used materials.
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PRODUCT PARAMETERS

Carbon Steel: Properties, Production, Examples and Applications


Carbon steel is an iron-carbon alloy, which contains up to 2.1 wt.% carbon. For carbon steels, there is no minimum specified content of other alloying elements, however, they often contain manganese. The maximum manganese, silicon and copper content should be less than 1.65 wt.%, 0.6 wt.% and 0.6 wt.%, respectively.


Types of carbon steel and their properties


Carbon steel can be classified into three categories according to its carbon content: low-carbon steel (or mild-carbon steel), medium-carbon steel and high-carbon steel . Their carbon content, microstructure and properties compare as follows:


Carbon content (wt.%)MicrostructurePropertiesExamples
Low-carbon steel< 0.25Ferrite, pearliteLow hardness and cost. High ductility, toughness, machinability and weldabilityAISI 304, ASTM A815, AISI 316L
Medium-carbon steel0.25 – 0.60MartensiteLow hardenability, medium strength, ductility and toughnessAISI 409, ASTM A29, SCM435
High-carbon steel0.60 – 1.25PearliteHigh hardness, strength, low ductilityAISI 440C, EN 10088-3


Carbon Steel Description


Grade:


1)GB: Q195, Q215, Q235A, Q235B, Q235C, Q235D, Q255A, 255B, Q275, Q295A, Q295B, Q345B, Q345C, Q345D, Q345E, Q390A, Q390B, Q390C,Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D, Q620E, Q690D, Q690E


2)EN: S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q 


3)ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 80 


4)JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHE



PRODUCT DETAILS


A252  Seamless&Welded Pipe Piles Description
The  chemical composition of A252 steel pipe mainly consists of iron, carbon,  silicon, manganese and other elements, of which the carbon content is low,  only about 0.2%. A252 steel pipe piles has excellent mechanical properties,  high strength and toughness, tensile strength is generally between  400-550MPa, and has good low-temperature toughness. A252 seamless welded pipe  piles play an important role in petroleum, chemical industry, machinery,  construction and other fields.


Product   Parameters
Product NameA252 Seamless&Welded Pipe Piles
StandardEN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer DiameterSeamless: 1/4"-36"Welding: 21.3mm-3620mm
Round Tube: 1/2"-10"Square   Tube/Rectangular Tube: 15x15mm-400x600mm
Wall   ThicknessSeamless: 1.25mm-50mmWelding: 1.65mm-65mm
Length3-12 meters, Support customization
Surface ProcessBright, Polished, Black
Other   ServicesMachining(cnc), Centerless Grinding(cg), Heat   Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting,   Bending, Small Machining, etc.
Chemical  Composition
Seamless and ERW Welded PipeMaximum  Phosphorus Content 0.050%
Mechanical  Properties
A252Tensile  Strength psi(Mpa)Yield  Strength psi(Mpa)
Grade150,000(345)30,000(205)
Grade260,000(415)35,000(240)
Grade366,000(456)45,000(310)
Scope of  Application
Pile  foundation, micropile, manufacturing, bridge, structure, etc.


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A252 Seamless&Welded Pipe Piles
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A252 Seamless&Welded Pipe Piles

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A252 Seamless&Welded Pipe Piles


FACTORY DISPLAY
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FAQ
Q: Are you a factory or a trading company?
A:

Shandong Xinyongyuan Iron & Steel Group Co., Ltd. is a professional foreign trade and supply chain service company specializing in steel products. Leveraging the extensive industrial resources of the "Xinyongyuan " group, we have deeply integrated the production capacities of major domestic steel mills (such as Xinyongyuan, Baowu, HBIS, Ansteel, etc.). We possess stable supply channels and a professional foreign trade team. We are able to provide customers with one-stop steel procurement solutions—covering a wide variety of products and standards—at prices comparable to direct factory supply, combined with exceptional service flexibility.

Q: What products does your company primarily export?
A:

Our product portfolio spans the construction, machinery, energy, and infrastructure sectors. Our main offerings include: Plates & Sheets (Hot-rolled coils, Cold-rolled coils, Medium & Heavy plates, Galvanized sheets, Color-coated sheets); Structural Steel (H-beams, I-beams, Channel steel, Angle steel, Steel sheet piles); Steel Pipes (Seamless pipes, Straight-seam welded pipes, Spiral welded pipes, Galvanized pipes, Square & Rectangular tubes); and Construction Steel (Rebars, Wire rods, Round bars).

Q: What advantages does your company possess in Liaocheng, Shandong?
A:

Located in Liaocheng City, Shandong Province, our company is situated in close proximity to major steel production hubs such as Jinan and Handan, giving us access to abundant upstream resources. Furthermore, we are located within a short-haul transport radius of both Qingdao Port and Rizhao Port. This ensures convenient logistics and low port-consolidation costs, enabling us to efficiently connect with the global maritime shipping network and provide customers with guaranteed rapid delivery.

Q: Which international standards can you supply?
A:

We can produce or supply products in accordance with various international standards, including Chinese National Standards (GB), American Standards (ASTM), Japanese Standards (JIS), European Standards (EN), British Standards (BS), and Australian Standards (AS). Additionally, upon customer request, we can arrange third-party inspections through agencies such as SGS, BV, or Intertek.

Q: What is the Minimum Order Quantity (MOQ)?
A:

The Minimum Order Quantity varies depending on the specific product:
Standard Specifications (e.g., Q235B H-beams, Hot-rolled coils): Orders can be placed starting from one 20-foot container (approximately 20–25 tons).
Special Materials or Custom Sizes: We are open to accommodating small-batch trial orders; please consult with our sales representatives for details. Coiled products are typically shipped in full rolls (individual rolls weighing 15–30 tons); the minimum order quantity is one roll.

Q: What payment methods do you accept?
A:

We support a variety of international trade payment methods. Common combinations include:
30% T/T deposit + 70% balance paid prior to shipment
30% T/T deposit + 70% balance paid upon presentation of a copy of the Bill of Lading
100% Letter of Credit (L/C) at sight
For long-term partners and established clients, more flexible terms may be negotiated.

Q: What is the typical lead time?
A:

In-stock products: Shipped within 7–15 days after receipt of the deposit
Mill-scheduled orders: Generally 20–35 days (depending on the specific product and the steel mill's production schedule)
Large-volume orders (over 5,000 tons): 30–45 days; the specific delivery date must be confirmed with the steel mill

Q: How do you ensure product quality?
A:

We implement a three-tiered quality control system: First, all goods are sourced from reputable, large-scale steel mills and are accompanied by original Mill Test Certificates (MTCs); second, prior to shipment, our quality inspectors conduct on-site spot checks to verify dimensions, surface finish, weight, and other parameters; third, upon client request, we can commission third-party agencies—such as SGS or BV—to perform a comprehensive pre-shipment inspection. Should any material discrepancies or severe quality issues arise due to our fault, we will assume full responsibility for returns, replacements, or negotiated compensation.

Q: Can you provide samples?
A:

Yes. For standard in-stock products, we can provide small-sized samples (approximately 10–20 cm in length) free of charge; customers are only required to cover the international shipping costs. For custom samples produced according to specific drawings, material and processing fees apply; however, these fees are refundable upon the placement of a formal order.

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