Peak Kong Special Steel Co., Ltd. has successfully developed and mass-produced double/multi-layer precision composite profiles, including (Box-in-Box/Tube-in-Box/Box-in-Tube), using cutting-edge “laser fusion and arc welding (laser composite welding)” technology. This technology completely solves the pain point of modern construction and machinery where space constraints prevent the use of thicker steel pipes.

Peakkong Special Steel’s composite hollow profiles bring about a generational revolution: Double Load-Bearing Capacity: With the same outer diameter, the multi-layered steel structure, through mutual constraint, provides more than twice the load-bearing capacity and torsional stiffness.
Significantly Reduced Weight: The hollow design replaces heavy concrete, significantly reducing the overall structural weight, lowering foundation construction costs, and reducing seismic response.
Smaller Structural Cross-Sections: The same strength can be achieved with thinner columns or beams, freeing up a significantly higher proportion of interior ceiling height and usable space, perfectly solving complex spatial structural problems.
Fast Construction Speed: The factory utilizes fully automated laser composite welding for one-time molding, allowing for direct hoisting upon delivery, completely eliminating the cumbersome processes of on-site concrete pouring, curing, and flaw detection.

[Economy Type] Stainless Steel + Carbon Steel Combination: Design: The outer layer uses stainless steel (such as 316L/304L) to provide ultimate corrosion resistance and aesthetics, while the inner layer incorporates high-strength carbon steel for load-bearing.
Benefits: Significantly reduces overall material costs and eliminates the expense of outsourced fireproofing/corrosion-resistant coatings.

[Ultimate Performance Type] Titanium Alloy + High-Strength Steel Combination: Design: Combines lightweight, high-strength titanium alloy with ultra-high-strength structural steel (such as S960QL).
Benefits: Provides ultimate strength, high fatigue resistance, and lightweight performance for aerospace, deep-sea engineering, or special defense structures.

Structural Shapes: Box-in-Box, Tube-in-Box, Box-in-Tube.
Multi-International Standards Compliance: Production fully complies with EU (EN), US (ASTM), Japanese (JIS), and UK (BS) structural standards.

Key Applications: Super High-Rise and Large-Span Buildings: Slender columns, mega-trusses, and spatial grid structures for stadiums/airports in high-rise buildings.
High-End Public Facilities: Invisible precision support columns for transparent glass curtain walls (requiring extremely small and aesthetically pleasing cross-sections).
Marine and Heavy Engineering: Piping racks for offshore oil platforms, heavy-duty crane booms, and explosion-proof pipelines for high-pressure liquid/gas transport.
Stress Characteristics: The main types of loads this component will bear (e.g., large axial compressive stress, strong bending moment, torque, or alternating fatigue load).
Delivery Standards: International standards and certification requirements specified for the project (e.g., welding qualifications accredited by TUV, SGS, DNV, and HOKLAS required).
The Project Integration and Technical Consultation Response Guidelines invite architectural design firms, structural engineers, curtain wall consultants, heavy machinery manufacturers, and construction companies to come and discuss this innovative product that represents “the future of structures”.

Welcome to contact us! Peakkong Special Steel Co., Ltd. is committed to promoting the development of green, low-carbon, and efficient modern steel structures through innovative technology. Whether you have material replacement needs for existing projects (converting CFT to composite hollow profiles), pre-review of complex spatial structure drawings, or development needs for dissimilar metal laser composite welding processes:

Feel free to contact us anytime to jointly usher in a new future for high-precision, ultra-high load-bearing capacity composite structural profiles!