2304 1.4362 Duplex Stainless Steel Channel Steel UPE UPN C Channel Structural Section

High-Strength Structural Solutions | Laser + CMT Hybrid Welding | Large-Size, Thick-Wall & Custom ProfilesIn demanding projects such as sea-crossing bridges, offshore engineering, chemical equipment, and high-end buildings, structural sections must combine high load-bearing capacity, excellent corrosion resistance, stable welding quality, and long-term service reliability.
Peak Kong Special Steel specializes in the precision manufacturing of 2304 / 1.4362 duplex stainless steel channel sections. By combining self-developed automated flexible production lines with Laser + CMT (Cold Metal Transfer) hybrid welding technology, Peak Kong Special Steel provides large-scale engineering projects with high-strength, high-precision, and fully traceable duplex stainless steel structural solutions.
Compared with conventional austenitic stainless steels, 2304 / 1.4362 duplex stainless steel combines higher yield strength, good toughness, and strong resistance to chloride-induced corrosion, making it suitable for high-load, high-humidity, salt-spray, and complex industrial environments.
Redefining Thick-Wall Channel Manufacturing with Hybrid Welding Technology2304 / 1.4362 duplex stainless steel consists of both austenitic and ferritic phases and is relatively sensitive to welding heat input, cooling rate, and welding procedure control. Improper welding conditions may lead to phase imbalance in the weld, reduced heat-affected-zone performance, increased distortion, and compromised corrosion resistance.
To address these manufacturing challenges, Peak Kong Special Steel utilizes Laser + CMT hybrid welding technology:
High-Energy-Density Laser Welding:
Provides concentrated heat input, deep penetration, and high welding efficiency.
Low-Heat-Input CMT:
Reduces spatter, distortion, and heat accumulation while improving weld formation.
Precise Thermal-Cycle Control:
Helps maintain the metallurgical stability of welded joints.
High-Precision Geometric Control:
Suitable for large channel sections, thick-wall components, and non-standard cross-sections.
Flexible Manufacturing:
Supports multiple specifications, small-batch production, and drawing-based customization, overcoming the minimum-order limitations commonly associated with conventional hot-rolled products.
Through automated welding, in-line inspection, and digital process management, products can achieve the dimensional accuracy, weld consistency, and surface quality required for demanding engineering applications.
Up to 30 mm Full-Penetration Welding CapabilityPeak Kong Special Steel has full-penetration welding capability for plates up to approximately 30 mm thick. Welding solutions can be developed according to product dimensions, material condition, joint design, and project-specific technical requirements.
Full-penetration welding can help improve:
Effective load-bearing area of welded joints;
Shear and bending performance of structural components;
Overall load continuity of thick-wall channel sections;
Safety margins of large components under dynamic loading;
Inspectability and quality control of welded joints.

Actual welding performance, joint strength, and inspection requirements shall be determined according to approved welding procedure qualifications, material certificates, and project technical specifications, ensuring that every production batch is supported by clear, complete, and verifiable quality documentation.
Stainless Steel Channel Section Product RangePeak Kong Special Steel’s automated flexible production lines can manufacture a wide range of parallel-flange and tapered-flange channel sections, while supporting non-standard cross-sections and special thickness combinations based on engineering drawings.
Parallel Flange Channels (PFC)PFC 100 × 50 to PFC 430 × 100
European Parallel Flange Channels (UPE)UPE 80 to UPE 400
European Standard Channels (UPN)UPN 50 to UPN 400
European Taper Flange Channels (UPA)UPA 80 to UPA 400
Non-Standard Channel Sections & Customized ProfilesCustomized manufacturing is available according to customer drawings and engineering requirements, including:
Special cross-sections and non-standard geometric dimensions;
Special flange widths and web heights;
Non-standard wall thicknesses and multiple thickness combinations;
Large-size and extra-long structural components;
Special end configurations, openings, and connection details;
High-appearance-quality profiles suitable for AESS (Architecturally Exposed Structural Steel).

Actual supply ranges, tolerances, and surface requirements shall be confirmed according to the material specification, design drawings, and contractual technical conditions.
International Standards-Oriented Quality ManagementTo meet engineering requirements across Europe, North America, Asia, and the United Kingdom, Peak Kong Special Steel can implement full-process management covering materials, welding, dimensions, and non-destructive testing according to applicable project standards and contractual specifications.
Relevant standards may include:
EN 10088 Series: Stainless steel material requirements;
EN 10279: Dimensions, shape, and tolerances for hot-rolled steel channels;
EN 15614-11: Welding procedure qualification for laser welding;
EN 15614-14: Welding procedure qualification for hybrid welding;
ASTM A484: General requirements for stainless steel forgings and structural shapes;
Other applicable ASTM, JIS, BS, and project-specific specifications.

According to project requirements, the following documentation and inspection services can be provided:
Material certificates and chemical composition reports;
EN 10204 3.1 / 3.2 quality documentation;
Welding procedure qualifications and welding procedure specifications;
Dimensional, visual, and geometric tolerance inspection reports;
Ultrasonic, penetrant, or other non-destructive testing reports;
Weld inspection and process records;
Production-batch, material-flow, and digital traceability records;
Third-party inspection and witnessing services.

Where required, Peak Kong Special Steel can also coordinate inspection, auditing, and acceptance with SGS, TÜV, DNV, or other recognized inspection organizations.
Engineering Applications for High-Load and Corrosive EnvironmentsBridges & Sea-Crossing Civil EngineeringSuitable for corrosion-resistant pile and column stiffeners, large-span bridge steel arch connection components, highway noise-barrier supports, load-bearing components for municipal pedestrian bridges, and edge reinforcement and connection systems for coastal bridges.
Marine, Port & Water InfrastructureApplications include heavy-duty frames for offshore operating platforms, port protection trusses, corrosion-resistant supports in tidal zones, stiffeners for coastal sluice gates, main support structures for seawater desalination plants, and structural systems for water-treatment facilities.
Petrochemical & Heavy IndustrySuitable for industrial environments where high chemical and mechanical stresses coexist, including pipe-rack supports, heavy equipment support structures, chemical storage tank skirts, industrial platforms, pulp and paper equipment frames, and other corrosion-resistant load-bearing systems.
High-End Buildings & Public Transportation HubsApplications include high-speed railway stations, airport terminals, large-span roof space frames, glass curtain-wall support systems, Architecturally Exposed Structural Steel (AESS), municipal pedestrian bridges, and primary load-bearing components for coastal public buildings.
A More Efficient Structural Choice for Large-Scale EngineeringThe value of 2304 / 1.4362 duplex stainless steel channel sections lies not only in the inherent strength and corrosion resistance of the material, but also in their ability to support modern engineering design by balancing structural safety, durability, and manufacturing efficiency.
Key advantages include:
High Yield Strength:
Helps improve structural load-bearing efficiency.
Excellent Corrosion Resistance:
Suitable for coastal, marine, and various industrial environments.
Enhanced Resistance to Stress Corrosion Cracking:
Suitable for chloride-containing and high-stress service conditions.
Thick-Wall and Large-Size Manufacturing Capability:
Meets the requirements of large-scale engineering and heavy-load structures.
Effective Welding Distortion Control:
Helps improve installation accuracy and on-site assembly efficiency.
Flexible Custom Manufacturing:
Supports small-batch, multi-specification, and non-standard profile production.
Complete Documentation and Full Traceability:
Facilitates engineering acceptance, quality management, and long-term maintenance.
Actual design strength, service life, weight savings, and corrosion protection systems should be calculated and confirmed by the project design organization based on loading conditions, environmental classification, connection methods, and applicable standards.
One-Stop Service from Material Selection to Final DeliveryPeak Kong Special Steel provides more than duplex stainless steel channel sections. We can participate in early-stage technical assessment and manufacturing coordination to support customers with:
Material grade and cross-section selection;
Engineering drawing and manufacturability pre-review;
Non-standard channel cross-section design coordination;
Welding joint and process recommendations;
Large-size, thick-wall, and small-batch flexible manufacturing;
Dimensional, visual, and non-destructive testing;
Third-party inspection and engineering acceptance coordination;
Material certificates, welding documentation, and complete traceability records;
International project packaging, logistics, and delivery support.

Peak Kong Special Steel: Precision Welding for High-Performance Duplex Steel StructuresFrom sea-crossing bridges to offshore platforms, from chemical equipment to high-end buildings, modern engineering structures are moving toward higher strength, longer service life, lower maintenance requirements, and more precise manufacturing.
Peak Kong Special Steel utilizes 2304 / 1.4362 duplex stainless steel as a core material, combined with Laser + CMT hybrid welding technology, automated flexible production lines, and full-process quality traceability to provide global customers with large-size, thick-wall, non-standard, and high-performance stainless steel channel section solutions.
Peak Kong Special Steel — Combining the high strength and durability of duplex stainless steel with precision manufacturing technology to build a more reliable structural foundation for next-generation large-scale engineering projects.
For specifications, drawing-based customization, welding procedures, or project-specific support for 2304 / 1.4362 duplex stainless steel channel sections, please contact Peak Kong Special Steel.