Structural Tubes for Offshore Applications
Carbon Steel Sections
Stainless Steel Sections
We offer free consultation to help you meet your specific requirements:

To start this process smoothly:

  • Send us a drawing: It can be hand-drawn or in CAD format, whichever you prefer.
  • Provide us with information about your project: material grade, quantity, length, surface finish, specific testing requirements, required dimensional tolerances, and any other relevant details.
Product Inquiry
  • Unit B, 9/F, Worldwide Centre, 123 Tung Chau Street, Tai Kok Tsui Kowloon.HongKong
  • T: +852-92992995
  • E:
  • Structural Tubes for Offshore Applications
Structural Tubes for Offshore Applications
  • Standard: EN10225-3
  • Steel grade: S355NLHHO
  • Tolerance: EN 10163-3
  • Certificate: According to EN 10204 - Type 2.2 or 3.1b
Structural Tubes for Offshore Applications

Offshore structures require materials that can withstand violent storms and extreme weather conditions. Cost-effectiveness, ease of maintenance and safety are further requirements to compete in this challenging environment. Therefore: PEAKKONG Special Steel provides materials with durability and strength that comply with international offshore standards and specifications.

Challenges of the offshore environment

Thanks to our extensive experience and R&D capabilities in offshore environments we offer a wide range from carbon to innovate premium grades. Our seamless tubes and hot formed hollow sections in round, square and rectangular are ultra-resistant and meet yield strength up to 890 MPa and toughness down to -60°C. With these specific properties our grades contribute to a major success factor: the efficient weldability.

The wide range of our dimensional product portfolio ensures the highest freedom for offshore designers on the market. Along with tight wall thickness tolerances it ensures weight limitations and excellent fabrication. If needed, also special shapes can be delivered.

Our broad size portfolio ensures the greatest freedom for offshore designers on the market. In addition to tight wall thickness tolerances, it ensures weight limits and excellent manufacturing. Special shapes are also available if required.

International Norms
  • API 5L/ISO 3183: X52N/L360N, X52 modified, X60/L415QO, X65Q/L450QO PSL2
  • EN10225:2009:S355 G1+N;S355 G14+N;S355 G15+N
  • EN10225-3:2019:S355NHHO / S355NLHHO / S355QHHO / S355QLHHO / S420QHHO / S420QLHHO / S460QLHHO
  • EN10225-4:2019:S355NLHCO / S355MLHCO / S420MLHCO / S460MLHCO
  • EN 10210 S355NLH
Welding large diameter line pipe

Rolled pipe is formed from sheet metal by roll bending, UOE or JCO (press bending) methods. The manufacturing process follows strict international standards (API 2B, API 5L, DNVGL-OS-C401 and AWS D1.1).

The rolled pipes are joined longitudinally using a submerged arc welding process, which results in high-quality welds and is considered best suited for oil and gas applications.

We offer LSAW pipes in the following sizes:

Outside diameters range from 14” to 60”

Wall thickness range from 12.7mm to 50mm

Ordering and delivery

PeakKong Special Steel applies Peakkong delivery conditions during the delivery process, and adds that both parties will comply with applicable legal and regulatory requirements and will not engage in any unethical business practices.
The products produced by PeakKong Special Steel.Structural Tubes for Offshore Applications The technical delivery conditions of our products meet the respective requirements. Dimensions and tolerances are defined according to the relevant steel material standards. Engineering work complies with the respective standards.
Structural Tubes for Offshore Applications Equipped with strapping tags and Peakkong Special Steel product tags to achieve comprehensive traceability and identification. According to the corresponding steel standards, corresponding material certificates will be provided.

You did not find the product you were looking for? Let’s tailor it for you.
YamKong Special Steel Co., Limited
Peak Kong Special Steel Co., Limited

Unit B, 9/F, Worldwide Centre, 123 Tung Chau Street, Tai Kok Tsui Kowloon.HongKong.
T: +852-29811161

YamKong Special Steel Co., Limited
Peak Kong Special Steel Technology (Guangdong) Co., Ltd.

No. 1 Building 1, No. 6 Xiegang Jinhai Road, Xiegang Town, Dongguan City, Guangdong Province.
T: 0769-82869307

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