UNS S32205 S31803 Duplex Stainless Steel Angle Steel Equal Unequal Angle Bar Structural Section

UNS S32205 / UNS S31803 Duplex Stainless Steel Equal and Unequal AnglesPeak Kong Special Steel utilizes innovative laser hybrid welding technology and independently developed automated flexible production lines to achieve high-volume, high-precision manufacturing of UNS S32205 / UNS S31803 duplex stainless steel equal angles and unequal angles.
Our innovative laser welding process effectively replaces conventional hot-rolled manufacturing for specific structural applications, overcoming industry limitations associated with the hot forming of large-size and thick-wall duplex stainless steel profiles. We can provide 100% full-penetration welding for weld thicknesses of up to 30 mm, enabling flexible solutions for small-batch, multi-size and highly customized structural requirements that are difficult to accommodate through conventional hot rolling.
Our manufacturing capabilities support stringent construction, marine and industrial requirements across major international standards, including EN, ASTM, JIS and BS.
Peak Kong Special Steel: Advanced Technology and Manufacturing CapabilitiesCompatibility with Major International Design StandardsOur products can be designed and supplied in accordance with Eurocode 3 (EN 1993) for stainless steel structural design, as well as the American AISC 370 Specification for Structural Stainless Steel Buildings and ASCE 8 Specification for the Design of Cold-Formed Stainless Steel Structural Members.
Whether for thick-wall heavy-duty structures or precision-engineered sections, our manufacturing capabilities provide engineers with reliable material and fabrication support for structural design and engineering calculations.
International Manufacturing StandardsProduction and materials are controlled according to applicable international standards, including:
EN 10088-5 — Stainless Steels for Structural Applications
ASTM A484 / A484M — General Requirements for Stainless Steel Bars, Billets and Forgings

Additional applicable EN, ASTM, JIS and BS requirements can be incorporated according to project specifications.
Qualified Welding ProceduresOur welding procedures can be qualified in accordance with:
EN 15614-11 — Welding Procedure Qualification for Laser Welding
EN 15614-14 — Welding Procedure Qualification for Hybrid Welding

Our welding team and technical processes are subject to third-party audit and certification requirements, including SGS, TÜV and DNV.
100% Quality Traceability and International Compliance SupportLarge-size angles can be manufactured with 100% full-penetration welding for weld thicknesses of up to 30 mm, subject to product design, welding procedure qualification and applicable technical requirements.
Factory documentation can include official inspection reports, non-destructive testing records and complete Material Test Certificates (MTC 3.1 / 3.2).
CE and UKCA compliance support can also be provided according to project requirements, supporting international procurement, tendering and project acceptance.
UNS S32205 / UNS S31803 Duplex Stainless Steel Structural Profile Size RangeEqual Angles40 × 40 mm to 300 × 300 mm
Thickness: 5 mm–30.0 mm
Unequal Angles50 × 30 mm to 400 × 200 mm
Thickness: 5 mm–30.0 mm
Marine Angles60 × 40 mm to 350 × 150 mm
Thickness: 5 mm–30.0 mm
Custom ProfilesPrecision manufacturing according to customer drawings, supporting thicknesses of up to 30.0 mm.
Beyond conventional hot-rolling tooling limitations, Peak Kong Special Steel can develop complex customized cross-sections, including open, recessed, projecting, asymmetric and other engineered profiles.
Applications of Duplex Stainless Steel Structural ProfilesHigh-End Construction and Curtain Wall StructuresPrimary support trusses for high-rise glass curtain walls
Long-span purlins for coastal landmark buildings
Main structural frames for large outdoor ventilation corridors
Cantilever supports for architectural shading systems

InfrastructureLoad-bearing base beams for coastal promenade viewing platforms
Structural frames for port fender systems
Auxiliary pipeline supports for sea-crossing bridges
Supports for underground utility corridors

Marine Engineering and Special-Purpose VesselsReinforcement structures for equipment skids on offshore drilling platforms
Hull reinforcement longitudinals for ocean-going chemical tankers and LNG / LPG vessels
Grating supports for deck walkways
Load-bearing structural components for offshore equipment

Environmental, Chemical and Water Treatment EquipmentModular load-bearing trusses for large-scale seawater desalination plants
Structural frames for sludge scrapers in large wastewater treatment clarifiers
External reinforcement rings for chemical scrubber towers
Corrosion-resistant equipment support structures
Structural components for demanding water-treatment environments

Contact Peak Kong Special SteelFor UNS S32205 / UNS S31803 duplex stainless steel equal angle and unequal angle fabrication services, customized profiles and the latest quotation, please contact us with your drawings, specifications, dimensions, quantities and application requirements.
Peak Kong Special Steel provides advanced, safety-focused and internationally compliant specialty steel solutions, covering material supply, precision fabrication, laser hybrid welding, inspection, quality documentation and one-stop engineering support.