PETROL STEEL supplies seamless piling pipe, seamless hollow sections, and seamless structural pipe for foundations, bridges, ports, and infrastructure projects. Grades include ASTM A252 Gr.2 and Gr.3, API 5L piling specifications, and EN 10210 S355J2H, in outside diameters from 324 mm to 1,220 mm and wall thicknesses from 8 mm to 60 mm. Send your OD, wall thickness, grade, and quantity, and we will return an ex-factory quotation within 24 hours.
[Request a Quote] | sales@petrolsteel.com | WhatsApp +86 159 0035 7871
Specifications at a glance
| Item | Specification |
| Length | 6 m, 12 m, or customized |
| Ends | Plain, beveled for butt welding, piling shoes |
| Surface | Bare, black paint, varnish, 3PE / 3PP / FBE, epoxy |
| Tests | Ultrasonic, hydrostatic, and eddy current; Charpy impact for J2H and K2H grades |
| Documents | EN 10204 3.1 MTC; 3.2 on request; third-party inspection by SGS, BV, or TUV |
| MOQ / lead time | 25 tons / 3-4 weeks |
Seamless piling pipe
Seamless piling pipe has no longitudinal weld, so wall thickness and strength are uniform around the circumference. That makes it a sound choice for driven piles in challenging ground and for deep foundations. ASTM A252 covers welded and seamless pipe piles, and we supply Gr.2 and Gr.3 as well as API 5L Gr.B and X52 for projects that specify them.
| Property | A252 Gr. 2 | A252 Gr. 3 | EN 10210 S355J2H |
| Yield strength, min | 241 MPa | 310 MPa | 355 MPa (wall up to 16 mm) |
| Tensile strength, min | 414 MPa | 455 MPa | 470–630 MPa |
| Impact test | Not specified | Not specified | 27 J at −20°C |
| Chemistry | Phosphorus only | Phosphorus only | C ≤ 0.22%, Mn ≤ 1.60%, Si ≤ 0.55%, P and S ≤ 0.030% |
Values are standard minimums; the order specification prevails. Gr.3 allows a thinner wall for the same driving load. Long piles are joined on site by butt welding, so we supply beveled ends and can fit piling shoes for tough ground.
Seamless hollow sections
For seamless hollow sections, EN 10210 is the correct standard, because it covers hot-finished structural hollow sections, seamless or welded. EN 10219 covers cold-formed welded sections only. S355J2H is the most common grade for offshore jackets, towers, trusses, and heavy structures that need low-temperature toughness. ASTM A501 is the usual equivalent for American specifications. Our seamless range is circular (CHS); tell us if you need square or rectangular sections, and we will confirm availability.
Seamless bridge pipe and foundation pipe
Bridge and foundation designs use pipe in two ways: as driven or drilled piles and as structural members such as pier columns, bracing, and pile sleeves. Piles are normally A252 Gr.3 or Gr.2, while exposed structural members are often S355J2H hollow sections. We can quote both in one package with matching certificates, coatings, and end preparation, simplifying engineer approval.
Seamless infrastructure pipe
Water transmission, utilities, industrial parks, and plant infrastructure use seamless carbon steel pipe to ASTM A53 Gr.B, ASTM A106 Gr.B, or API 5L Gr.B, with 3PE, FBE, or epoxy coatings for buried applications. For API 5L pipeline projects in oil and gas, see our Hot Expanded Seamless Steel Pipes for Oil & Gas Transmission and Large Diameter, Heavy Wall & Infrastructure Steel Pipes.
Seamless or welded: how to choose
Seamless steel pilings and structural members up to about 1,220 mm. Above that size, or for exceptionally thin-wall sections, welded pipe is the economical route. We supply both, so the choice depends on your specification and budget.
| Need | Choose |
| Piles and sections up to 1,220 mm, uniform wall | This page: seamless piling pipe and hollow sections |
| Large diameter piles and heavy plates | LSAW Steel Pipes for Oil & Gas & Infrastructure Projects |
| Structural sections to EN 10219, cost-driven | [S355J2H SSAW Steel Pipe |
| Water and wastewater lines with FBE coating | AWWA C213 FBE Coated SSAW Spiral Welded Pipe |
| Offshore platform legs, braces, and jackets | Offshore Platform & Jacket Structural Steel Tubulars |
| Offshore wind foundations | Offshore Wind & Platform Monopiles |
Browse the complete Steel Pipes range.
Quality control and inspection
- Heat-by-heat material verification, with spectral analysis against the grade.
- Tensile and, for J2H and K2H grades, Charpy impact tests.
- Ultrasonic testing of the pipe body, plus eddy current testing and a hydrostatic test.
- Dimensional inspection of OD, wall thickness, ovality, and straightness.
- Visual check, bevel inspection, and marking with heat number.
- Third-party inspection by SGS, BV, or TUV on request.
Coating, packing, and shipping
Bare, painted, or coated with 3PE, 3PP, FBE, or epoxy, depending on the soil or atmosphere. Bundles use end caps and dunnage and are lashed for sea freight. Short lengths ship in 40 ft containers; 12 m lengths and large diameters are normally shipped as break bulk. We quote FOB, CFR, or CIF and prepare the documents required at destination ports, including SGS inspection and conformity certificates where the country asks for them.
Frequently asked questions
- Should I use seamless or welded pipe for piling? Seamless has no weld seam and a uniform wall, which suits driven piles up to about 1,220 mm. For larger diameters, LSAW welded pipe is the economical choice. Your pile design and specifications decide.
- What is the difference between ASTM A252 Gr. 2 and Gr. 3? Gr. 2 has a minimum yield of 241 MPa, and Gr. 3 has 310 MPa. Gr.3 allows thinner walls for the same driving load, while Gr.2 costs less per ton for general foundations.
- Is EN 10210 or EN 10219 right for seamless hollow sections? EN 10210 covers hot-finished sections, seamless or welded, so it is the standard for seamless pipe. EN 10219 covers cold-formed welded sections only.
- Which pipe is used for bridge foundations? Piles are usually ASTM A252 Gr.3 or Gr.2, and exposed structural members are often EN 10210 S355J2H. Follow the grade and wall in your design specification.
- What sizes and lengths can you supply? Available sizes and lengths are OD 324–1,220 mm, wall thickness 8–60 mm, and lengths of 6 m, 12 m, or custom lengths. Other sizes can be quoted on request.
- How are long piles spliced? By butt welding on site. We supply beveled ends and piling shoes, and your welding procedure sets the end detail. Tell us the splice detail when you inquire.
- Which documents and tests are included? We provide an EN 10204 3.1 certificate with chemistry and mechanical results, ultrasonic and hydrostatic test records, and Charpy results for J2H and K2H grades. 3.2 Certification and third-party inspection are available.
Additional questions from EPC buyers
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Do you supply CE marking for EN 10210 sections? Tell us if the project is in the EU or needs CE marking. We confirm with the mill before quoting, and we do not promise it where we cannot document it.
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Can you quote directly from our BOQ or MTO? Yes. Send the Excel or Word file with sizes, wall thickness, grades, and quantities. We confirm the standard, flag non-standard items, and return a quotation within 24 hours.
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What are the lead time and MOQ? MOQ is 25 tons. Standard project orders typically ship in about 3-4 weeks for standard sizes, depending on size, inspection, and quantity.
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Which destination documents do you handle? Certificates of origin, packing lists, MTCs, and inspection reports, plus SGS or conformity certificates where the importing country requires them, for example, Saudi Arabia and Egypt.
Request a quotation.
Send your BOQ or MTO, grade (A252 Gr.2 / Gr.3, EN 10210 S355J2H), OD, wall thickness, length, coating, and quantity to sales@petrolsteel.com or WhatsApp +86 159 0035 7871.
PETROL STEEL CO., LTD | A-4F, Vantone Center, A6, Chaowai St., Chaoyang Dist., Beijing, China | Tel +86 10 8599 9168
